Update workflow

Fixed output for "Justified epoch distance"

.dockerignore

@@ -0,0 +1,24 @@
+# Binaries for programs and plugins
+*.exe
+*.dll
+*.so
+*.dylib
+ethdo
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+coverage.html
+
+# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
+.glide/
+
+# Vim
+*.sw?
+
+# Local TODO
+TODO.md
+
+Dockerfile

.github/workflows/go.yml

@@ -0,0 +1,105 @@
+name: Go
+
+on:
+  push:
+    # branches: [ master ]
+    tags:
+    - 'v*'
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        go-version: ^1.13
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Get dependencies
+      run: |
+        go get -v -t -d ./...
+        if [ -f Gopkg.toml ]; then
+            curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+            dep ensure
+        fi
+
+    - name: Build
+      run: go build -v .
+
+    - name: Test
+      run: go test -v .
+
+    - name: Set env
+      run: |
+       echo '::set-env name=GO111MODULE::on'
+
+    - name: Fetch xgo
+      run: go get github.com/suburbandad/xgo
+
+    - name: Cross-compile
+      run: xgo -v -x --targets="linux/amd64,linux/arm64,windows/amd64" github.com/wealdtech/ethdo
+
+    - name: Create windows zip file
+      run: |
+       mv ethdo-windows-4.0-amd64.exe ethdo.exe
+       zip --junk-paths ethdo-${GITHUB_REF}-windows-exe.zip ethdo.exe
+
+    - name: Create linux AMD64 tgz file
+      run: |
+       mv ethdo-linux-amd64 ethdo
+       tar zcf ethdo-${GITHUB_REF}-linux-amd64.tar.gz ethdo
+
+    - name: Create linux ARM64 tgz file
+      run: |
+       mv ethdo-linux-arm64 ethdo
+       tar zcf ethdo-${GITHUB_REF}-linux-arm64.tar.gz ethdo
+
+    - name: Create release
+      id: create_release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ github.ref }}
+        release_name: Release ${{ github.ref }}
+        draft: false
+        prerelease: true
+       
+    - name: Upload windows zip file
+      id: upload-release-asset-windows
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./ethdo-${{ github.ref }}-windows-exe.zip
+        asset_name: ethdo-${{ github.ref }}-windows-exe.zip
+        asset_content_type: application/zip
+       
+    - name: Upload linux AMD64 tgz file
+      id: upload-release-asset-linux-amd64
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./ethdo-${{ github.ref }}-linux-amd64.tar.gz
+        asset_name: ethdo-${{ github.ref }}-linux-amd64.tar.gz
+        asset_content_type: application/gzip
+       
+    - name: Upload linux ARM64 tgz file
+      id: upload-release-asset-linux-arm64
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./ethdo-${{ github.ref }}-linux-arm64.tar.gz
+        asset_name: ethdo-${{ github.ref }}-linux-arm64.tar.gz
+        asset_content_type: application/gzip

Dockerfile

@@ -0,0 +1,19 @@
+FROM golang:1.14-buster as builder
+
+WORKDIR /app
+
+COPY go.mod go.sum ./
+
+RUN go mod download
+
+COPY . .
+
+RUN go build
+
+FROM debian:buster-slim
+
+WORKDIR /app
+
+COPY --from=builder /app/ethdo /app
+
+ENTRYPOINT ["/app/ethdo"]

README.md

@@ -5,11 +5,12 @@
 
 A command-line tool for managing common tasks in Ethereum 2.
 
-** Please note that this library uses standards that are not yet final, and as such may result in changes that alter public and private keys.  Do not use this library for production use just yet **
+**Please note that this tool and its underlying libraries have not yet undergone a security audit; use at your own risk.**
 
 ## Table of Contents
 
 - [Install](#install)
+  - [Docker](#docker)
 - [Usage](#usage)
 - [Maintainers](#maintainers)
 - [Contribute](#contribute)
@@ -27,6 +28,34 @@ Note that `ethdo` requires at least version 1.13 of go to operate.  The version
 
 If this does not work please see the [troubleshooting](https://github.com/wealdtech/ethdo/blob/master/docs/troubleshooting.md) page.
 
+### Docker
+
+You can obtain the latest version of `ethdo` using docker with:
+
+```
+docker pull wealdtech/ethdo
+```
+
+Or build `ethdo` using docker:
+
+```sh
+docker build -t ethdo .
+```
+
+You can run `ethdo` using docker after that. Example:
+
+```sh
+docker run -it ethdo --help
+```
+
+Note that that many `ethdo` commands connect to the beacon node to obtain information.  If the beacon node is running directly on the server this requires the `--network=host` command, for example:
+
+```sh
+docker run --network=host ethdo chain status
+```
+
+Alternatively, if the beacon node is running in a separate docker container a shared network can be created with `docker network create eth2` and accessed by adding `--network=eth2` added to both the beacon node and `ethdo` containers.
+
 ## Usage
 
 ethdo contains a large number of features that are useful for day-to-day interactions with the Ethereum 2 blockchain.
@@ -39,6 +68,16 @@ ethdo uses the [go-eth2-wallet](https://github.com/wealdtech/go-eth2-wallet) sys
     - for OSX: $HOME/Library/Application Support/ethereum2/wallets
     - for Windows: %APPDATA%\ethereum2\wallets
 
+If using the filesystem store, the additional parameter `basedir` can be supplied to change this location.
+
+> If using docker as above you can make this directory accessible to docker to make wallets and accounts persistent.  For example, for linux you could use the following command to list your wallets on Linux:
+>
+> ```
+> docker run -v $HOME/.config/ethereum2/wallets:/data ethdo --basedir=/data wallet list
+> ```
+>
+> This will allow you to use `ethdo` with or without docker, with the same location for wallets and accounts.
+
 All ethdo comands take the following parameters:
 
   - `store`: the name of the storage system for wallets.  This can be one of "filesystem" (for local storage of the wallet) or "s3" (for remote storage of the wallet on [Amazon's S3](https://aws.amazon.com/s3/) storage system), and defaults to "filesystem"
@@ -79,6 +118,18 @@ If set, the `--debug` argument will output additional information about the oper
 
 Commands will have an exit status of 0 on success and 1 on failure.  The specific definition of success is specified in the help for each command.
 
+## Rules for account passphrases
+
+Account passphrases are used in various places in `ethdo`.  Where they are used, the following rules apply:
+
+  - commands that require passphrases to operate, for example unlocking an account, can be supplied with multiple passphrases.  If they are, then each passphrase is tried until one succeeds or they all fail
+  - commands that require passphrases to create, for example creating an account, must be supplied with a single passphrase.  If more than one passphrase is supplied the command will fail
+
+In addition, the following rules apply to passphrases supplied on the command line:
+
+  - passphrases **must not** start with `0x`
+  - passphrases **must not** contain the comma (,) character
+
 # Commands
 
 Command information, along with sample outputs and optional arguments, is available in [the usage section](https://github.com/wealdtech/ethdo/blob/master/docs/usage.md).

cmd/accountcreate.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 Weald Technology Trading
+// Copyright © 2019, 2020 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -14,10 +14,14 @@
 package cmd
 
 import (
+	"context"
 	"fmt"
 	"os"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 var accountCreateCmd = &cobra.Command{
@@ -29,29 +33,48 @@ var accountCreateCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the account is created successfully, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(!remote, "account create not available with remote wallets")
-		assert(rootAccount != "", "--account is required")
-		assert(rootAccountPassphrase != "", "--passphrase is required")
+		assert(viper.GetString("account") != "", "--account is required")
 
-		w, err := walletFromPath(rootAccount)
+		wallet, err := openWallet()
 		errCheck(err, "Failed to access wallet")
-
-		if w.Type() == "hierarchical deterministic" {
-			assert(rootWalletPassphrase != "", "--walletpassphrase is required to create new accounts with hierarchical deterministic wallets")
+		outputIf(debug, fmt.Sprintf("Opened wallet %q of type %s", wallet.Name(), wallet.Type()))
+		if wallet.Type() == "hierarchical deterministic" {
+			assert(getWalletPassphrase() != "", "walletpassphrase is required to create new accounts with hierarchical deterministic wallets")
+		}
+		locker, isLocker := wallet.(e2wtypes.WalletLocker)
+		if isLocker {
+			ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+			defer cancel()
+			errCheck(locker.Unlock(ctx, []byte(getWalletPassphrase())), "Failed to unlock wallet")
 		}
-		_, err = accountFromPath(rootAccount)
-		assert(err != nil, "Account already exists")
 
-		err = w.Unlock([]byte(rootWalletPassphrase))
-		errCheck(err, "Failed to unlock wallet")
+		_, accountName, err := e2wallet.WalletAndAccountNames(viper.GetString("account"))
+		errCheck(err, "Failed to obtain account name")
 
-		_, accountName, err := walletAndAccountNamesFromPath(rootAccount)
-		errCheck(err, "Failed to obtain accout name")
-
-		account, err := w.CreateAccount(accountName, []byte(rootAccountPassphrase))
+		var account e2wtypes.Account
+		if viper.GetUint("participants") > 0 {
+			// Want a distributed account.
+			distributedCreator, isDistributedCreator := wallet.(e2wtypes.WalletDistributedAccountCreator)
+			assert(isDistributedCreator, "Wallet does not support distributed account creation")
+			outputIf(debug, fmt.Sprintf("Distributed account has %d/%d threshold", viper.GetUint32("signing-threshold"), viper.GetUint32("participants")))
+			ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+			defer cancel()
+			account, err = distributedCreator.CreateDistributedAccount(ctx, accountName, viper.GetUint32("participants"), viper.GetUint32("signing-threshold"), []byte(getPassphrase()))
+		} else {
+			creator, isCreator := wallet.(e2wtypes.WalletAccountCreator)
+			assert(isCreator, "Wallet does not support account creation")
+			ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+			defer cancel()
+			account, err = creator.CreateAccount(ctx, accountName, []byte(getPassphrase()))
+		}
 		errCheck(err, "Failed to create account")
 
-		outputIf(verbose, fmt.Sprintf("0x%048x", account.PublicKey().Marshal()))
+		if pubKeyProvider, ok := account.(e2wtypes.AccountCompositePublicKeyProvider); ok {
+			outputIf(verbose, fmt.Sprintf("%#x", pubKeyProvider.CompositePublicKey().Marshal()))
+		} else if pubKeyProvider, ok := account.(e2wtypes.AccountPublicKeyProvider); ok {
+			outputIf(verbose, fmt.Sprintf("%#x", pubKeyProvider.PublicKey().Marshal()))
+		}
+
 		os.Exit(_exitSuccess)
 	},
 }
@@ -59,4 +82,12 @@ In quiet mode this will return 0 if the account is created successfully, otherwi
 func init() {
 	accountCmd.AddCommand(accountCreateCmd)
 	accountFlags(accountCreateCmd)
+	accountCreateCmd.Flags().Uint32("participants", 0, "Number of participants (for distributed accounts)")
+	if err := viper.BindPFlag("participants", accountCreateCmd.Flags().Lookup("participants")); err != nil {
+		panic(err)
+	}
+	accountCreateCmd.Flags().Uint32("signing-threshold", 0, "Signing threshold (for distributed accounts)")
+	if err := viper.BindPFlag("signing-threshold", accountCreateCmd.Flags().Lookup("signing-threshold")); err != nil {
+		panic(err)
+	}
 }

cmd/accountimport.go

@@ -14,12 +14,15 @@
 package cmd
 
 import (
+	"context"
 	"fmt"
 	"os"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 	"github.com/wealdtech/go-bytesutil"
-	types "github.com/wealdtech/go-eth2-wallet-types/v2"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 var accountImportKey string
@@ -34,32 +37,41 @@ var accountImportCmd = &cobra.Command{
 In quiet mode this will return 0 if the account is imported successfully, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
 		assert(!remote, "account import not available with remote wallets")
-		assert(rootAccount != "", "--account is required")
-		assert(rootAccountPassphrase != "", "--passphrase is required")
+		assert(viper.GetString("account") != "", "--account is required")
+		passphrase := getPassphrase()
 		assert(accountImportKey != "", "--key is required")
 
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+
 		key, err := bytesutil.FromHexString(accountImportKey)
 		errCheck(err, "Invalid key")
 
-		w, err := walletFromPath(rootAccount)
+		w, err := walletFromPath(viper.GetString("account"))
 		errCheck(err, "Failed to access wallet")
 
-		_, ok := w.(types.WalletAccountImporter)
+		_, ok := w.(e2wtypes.WalletAccountImporter)
 		assert(ok, fmt.Sprintf("wallets of type %q do not allow importing accounts", w.Type()))
 
-		_, err = accountFromPath(rootAccount)
+		_, err = accountFromPath(ctx, viper.GetString("account"))
 		assert(err != nil, "Account already exists")
 
-		err = w.Unlock([]byte(rootWalletPassphrase))
-		errCheck(err, "Failed to unlock wallet")
+		locker, isLocker := w.(e2wtypes.WalletLocker)
+		if isLocker {
+			errCheck(locker.Unlock(ctx, []byte(getWalletPassphrase())), "Failed to unlock wallet")
+		}
 
-		_, accountName, err := walletAndAccountNamesFromPath(rootAccount)
-		errCheck(err, "Failed to obtain accout name")
+		_, accountName, err := e2wallet.WalletAndAccountNames(viper.GetString("account"))
+		errCheck(err, "Failed to obtain account name")
 
-		account, err := w.(types.WalletAccountImporter).ImportAccount(accountName, key, []byte(rootAccountPassphrase))
+		account, err := w.(e2wtypes.WalletAccountImporter).ImportAccount(ctx, accountName, key, []byte(passphrase))
 		errCheck(err, "Failed to create account")
 
-		outputIf(verbose, fmt.Sprintf("0x%048x", account.PublicKey().Marshal()))
+		pubKey, err := bestPublicKey(account)
+		if err == nil {
+			outputIf(verbose, fmt.Sprintf("%#x", pubKey.Marshal()))
+		}
+
 		os.Exit(_exitSuccess)
 	},
 }

cmd/accountinfo.go

@@ -19,7 +19,11 @@ import (
 	"os"
 
 	"github.com/spf13/cobra"
-	pb "github.com/wealdtech/eth2-signer-api/pb/v1"
+	"github.com/spf13/viper"
+	e2types "github.com/wealdtech/go-eth2-types/v2"
+	util "github.com/wealdtech/go-eth2-util"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 var accountInfoCmd = &cobra.Command{
@@ -31,27 +35,49 @@ var accountInfoCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the account exists, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(rootAccount != "", "--account is required")
+		assert(viper.GetString("account") != "", "--account is required")
 
-		if remote {
-			listerClient := pb.NewListerClient(remoteGRPCConn)
-			listAccountsReq := &pb.ListAccountsRequest{
-				Paths: []string{
-					rootAccount,
-				},
+		wallet, err := openWallet()
+		errCheck(err, "Failed to access wallet")
+
+		_, accountName, err := e2wallet.WalletAndAccountNames(viper.GetString("account"))
+		errCheck(err, "Failed to obtain account name")
+
+		accountByNameProvider, isAccountByNameProvider := wallet.(e2wtypes.WalletAccountByNameProvider)
+		assert(isAccountByNameProvider, "wallet cannot obtain accounts by name")
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+		account, err := accountByNameProvider.AccountByName(ctx, accountName)
+		errCheck(err, "Failed to obtain account")
+
+		// Disallow wildcards (for now)
+		assert(fmt.Sprintf("%s/%s", wallet.Name(), account.Name()) == viper.GetString("account"), "Mismatched account name")
+
+		if quiet {
+			os.Exit(_exitSuccess)
+		}
+
+		outputIf(verbose, fmt.Sprintf("UUID: %v", account.ID()))
+		var withdrawalPubKey e2types.PublicKey
+		if pubKeyProvider, ok := account.(e2wtypes.AccountPublicKeyProvider); ok {
+			fmt.Printf("Public key: %#x\n", pubKeyProvider.PublicKey().Marshal())
+			// May be overwritten later, but grab it for now.
+			withdrawalPubKey = pubKeyProvider.PublicKey()
+		}
+		if distributedAccount, ok := account.(e2wtypes.DistributedAccount); ok {
+			fmt.Printf("Composite public key: %#x\n", distributedAccount.CompositePublicKey().Marshal())
+			fmt.Printf("Signing threshold: %d/%d\n", distributedAccount.SigningThreshold(), len(distributedAccount.Participants()))
+			withdrawalPubKey = distributedAccount.CompositePublicKey()
+		}
+		if verbose {
+			withdrawalCredentials := util.SHA256(withdrawalPubKey.Marshal())
+			withdrawalCredentials[0] = byte(0) // BLS_WITHDRAWAL_PREFIX
+			fmt.Printf("Withdrawal credentials: %#x\n", withdrawalCredentials)
+		}
+		if pathProvider, ok := account.(e2wtypes.AccountPathProvider); ok {
+			if pathProvider.Path() != "" {
+				fmt.Printf("Path: %s\n", pathProvider.Path())
 			}
-			resp, err := listerClient.ListAccounts(context.Background(), listAccountsReq)
-			errCheck(err, "Failed to access account")
-			assert(resp.State == pb.ResponseState_SUCCEEDED, "No such account")
-			assert(len(resp.Accounts) == 1, "No such account")
-			fmt.Printf("Public key: %#048x\n", resp.Accounts[0].PublicKey)
-
-		} else {
-			account, err := accountFromPath(rootAccount)
-			errCheck(err, "Failed to access wallet")
-			outputIf(verbose, fmt.Sprintf("UUID: %v", account.ID()))
-			outputIf(!quiet, fmt.Sprintf("Public key: %#048x", account.PublicKey().Marshal()))
-			outputIf(verbose && account.Path() != "", fmt.Sprintf("Path: %s", account.Path()))
 		}
 
 		os.Exit(_exitSuccess)

cmd/accountkey.go

@@ -14,11 +14,13 @@
 package cmd
 
 import (
+	"context"
 	"fmt"
 	"os"
 
 	"github.com/spf13/cobra"
-	types "github.com/wealdtech/go-eth2-wallet-types/v2"
+	"github.com/spf13/viper"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 // accountKeyCmd represents the account key command
@@ -32,23 +34,33 @@ var accountKeyCmd = &cobra.Command{
 In quiet mode this will return 0 if the key can be obtained, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
 		assert(!remote, "account keys not available with remote wallets")
-		assert(rootAccount != "", "--account is required")
+		assert(viper.GetString("account") != "", "--account is required")
 
-		account, err := accountFromPath(rootAccount)
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+
+		account, err := accountFromPath(ctx, viper.GetString("account"))
 		errCheck(err, "Failed to access account")
 
-		_, ok := account.(types.AccountPrivateKeyProvider)
-		assert(ok, fmt.Sprintf("account %q does not provide its private key", rootAccount))
+		privateKeyProvider, isPrivateKeyProvider := account.(e2wtypes.AccountPrivateKeyProvider)
+		assert(isPrivateKeyProvider, fmt.Sprintf("account %q does not provide its private key", viper.GetString("account")))
 
-		assert(rootAccountPassphrase != "", "--passphrase is required")
-		err = account.Unlock([]byte(rootAccountPassphrase))
-		errCheck(err, "Failed to unlock account to obtain private key")
-		defer account.Lock()
-		privateKey, err := account.(types.AccountPrivateKeyProvider).PrivateKey()
+		if locker, isLocker := account.(e2wtypes.AccountLocker); isLocker {
+			unlocked := false
+			for _, passphrase := range getPassphrases() {
+				err = locker.Unlock(ctx, []byte(passphrase))
+				if err == nil {
+					unlocked = true
+					break
+				}
+			}
+			assert(unlocked, "Failed to unlock account to obtain private key")
+			defer errCheck(locker.Lock(context.Background()), "failed to re-lock account")
+		}
+		privateKey, err := privateKeyProvider.PrivateKey(ctx)
 		errCheck(err, "Failed to obtain private key")
-		account.Lock()
 
-		outputIf(!quiet, fmt.Sprintf("%#064x", privateKey.Marshal()))
+		outputIf(!quiet, fmt.Sprintf("%#x", privateKey.Marshal()))
 		os.Exit(_exitSuccess)
 	},
 }

cmd/accountlock.go

@@ -15,11 +15,11 @@ package cmd
 
 import (
 	"context"
-	"os"
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	pb "github.com/wealdtech/eth2-signer-api/pb/v1"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 var accountLockCmd = &cobra.Command{
@@ -31,26 +31,28 @@ var accountLockCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the account is locked, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(remote, "account lock only works with remote wallets")
-		assert(rootAccount != "", "--account is required")
+		assert(viper.GetString("account") != "", "--account is required")
 
-		client := pb.NewAccountManagerClient(remoteGRPCConn)
-		lockReq := &pb.LockAccountRequest{
-			Account: rootAccount,
-		}
+		wallet, err := openWallet()
+		errCheck(err, "Failed to access wallet")
+
+		_, accountName, err := e2wallet.WalletAndAccountNames(viper.GetString("account"))
+		errCheck(err, "Failed to obtain account name")
+
+		accountByNameProvider, isAccountByNameProvider := wallet.(e2wtypes.WalletAccountByNameProvider)
+		assert(isAccountByNameProvider, "wallet cannot obtain accounts by name")
 		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 		defer cancel()
-		resp, err := client.Lock(ctx, lockReq)
-		errCheck(err, "Failed in attempt to lock account")
-		switch resp.State {
-		case pb.ResponseState_DENIED:
-			die("Lock request denied")
-		case pb.ResponseState_FAILED:
-			die("Lock request failed")
-		case pb.ResponseState_SUCCEEDED:
-			outputIf(!quiet, "Lock request succeeded")
-			os.Exit(_exitSuccess)
-		}
+		account, err := accountByNameProvider.AccountByName(ctx, accountName)
+		errCheck(err, "Failed to obtain account")
+
+		locker, isLocker := account.(e2wtypes.AccountLocker)
+		assert(isLocker, "Account does not support locking")
+
+		ctx, cancel = context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		err = locker.Lock(ctx)
+		cancel()
+		errCheck(err, "Failed to lock account")
 	},
 }
 

cmd/accountunlock.go

@@ -19,7 +19,8 @@ import (
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	pb "github.com/wealdtech/eth2-signer-api/pb/v1"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 var accountUnlockCmd = &cobra.Command{
@@ -31,27 +32,38 @@ var accountUnlockCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the account is unlocked, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(remote, "account unlock only works with remote wallets")
-		assert(rootAccount != "", "--account is required")
+		assert(viper.GetString("account") != "", "--account is required")
 
-		client := pb.NewAccountManagerClient(remoteGRPCConn)
-		unlockReq := &pb.UnlockAccountRequest{
-			Account:    rootAccount,
-			Passphrase: []byte(rootAccountPassphrase),
-		}
+		wallet, err := openWallet()
+		errCheck(err, "Failed to access wallet")
+
+		_, accountName, err := e2wallet.WalletAndAccountNames(viper.GetString("account"))
+		errCheck(err, "Failed to obtain account name")
+
+		accountByNameProvider, isAccountByNameProvider := wallet.(e2wtypes.WalletAccountByNameProvider)
+		assert(isAccountByNameProvider, "wallet cannot obtain accounts by name")
 		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 		defer cancel()
-		resp, err := client.Unlock(ctx, unlockReq)
-		errCheck(err, "Failed in attempt to unlock account")
-		switch resp.State {
-		case pb.ResponseState_DENIED:
-			die("Unlock request denied")
-		case pb.ResponseState_FAILED:
-			die("Unlock request failed")
-		case pb.ResponseState_SUCCEEDED:
-			outputIf(!quiet, "Unlock request succeeded")
-			os.Exit(_exitSuccess)
+		account, err := accountByNameProvider.AccountByName(ctx, accountName)
+		errCheck(err, "Failed to obtain account")
+
+		locker, isLocker := account.(e2wtypes.AccountLocker)
+		assert(isLocker, "Account does not support unlocking")
+
+		unlocked := false
+		for _, passphrase := range getPassphrases() {
+			ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+			err := locker.Unlock(ctx, []byte(passphrase))
+			cancel()
+			if err == nil {
+				// Success.
+				unlocked = true
+				break
+			}
 		}
+
+		assert(unlocked, "Failed to unlock account")
+		os.Exit(_exitSuccess)
 	},
 }
 

cmd/accountwithdrawalcredentials.go

@@ -0,0 +1,83 @@
+// Copyright © 2019, 2020 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"context"
+	"encoding/hex"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	util "github.com/wealdtech/go-eth2-util"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
+)
+
+var accountWithdrawalCredentialsCmd = &cobra.Command{
+	Use:   "withdrawalcredentials",
+	Short: "Provide withdrawal credentials for an account",
+	Long: `Provide withdrawal credentials for an account.  For example:
+
+    ethdo account withdrawalcredentials --account="Validators/1"
+
+In quiet mode this will return 0 if the account exists, otherwise 1.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+
+		assert(viper.GetString("account") != "" || viper.GetString("pubkey") != "", "account or pubkey is required")
+
+		var pubKey []byte
+		if viper.GetString("pubkey") != "" {
+			var err error
+			pubKey, err = hex.DecodeString(strings.TrimPrefix(viper.GetString("pubkey"), "0x"))
+			errCheck(err, "Failed to decode supplied public key")
+		} else {
+			wallet, err := openWallet()
+			errCheck(err, "Failed to access wallet")
+
+			_, accountName, err := e2wallet.WalletAndAccountNames(viper.GetString("account"))
+			errCheck(err, "Failed to obtain account name")
+
+			accountByNameProvider, isAccountByNameProvider := wallet.(e2wtypes.WalletAccountByNameProvider)
+			assert(isAccountByNameProvider, "wallet cannot obtain accounts by name")
+			account, err := accountByNameProvider.AccountByName(ctx, accountName)
+			errCheck(err, "Failed to obtain account")
+
+			key, err := bestPublicKey(account)
+			errCheck(err, "Account does not provide a public key")
+			pubKey = key.Marshal()
+		}
+
+		if quiet {
+			os.Exit(_exitSuccess)
+		}
+
+		withdrawalCredentials := util.SHA256(pubKey)
+		withdrawalCredentials[0] = byte(0) // BLS_WITHDRAWAL_PREFIX
+		fmt.Printf("%#x\n", withdrawalCredentials)
+	},
+}
+
+func init() {
+	accountCmd.AddCommand(accountWithdrawalCredentialsCmd)
+	accountFlags(accountWithdrawalCredentialsCmd)
+	accountWithdrawalCredentialsCmd.Flags().String("pubkey", "", "Public key (overrides account)")
+	if err := viper.BindPFlag("pubkey", accountCreateCmd.Flags().Lookup("pubkey")); err != nil {
+		panic(err)
+	}
+}

cmd/blockinfo.go

@@ -20,14 +20,19 @@ import (
 	"os"
 	"sort"
 	"strings"
+	"time"
 	"unicode/utf8"
 
+	ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
+	"github.com/prysmaticlabs/go-bitfield"
+	"github.com/prysmaticlabs/go-ssz"
 	"github.com/spf13/cobra"
 	"github.com/wealdtech/ethdo/grpc"
 	string2eth "github.com/wealdtech/go-string2eth"
 )
 
 var blockInfoSlot int64
+var blockInfoStream bool
 
 var blockInfoCmd = &cobra.Command{
 	Use:   "info",
@@ -41,11 +46,21 @@ In quiet mode this will return 0 if the block information is present and not ski
 		err := connect()
 		errCheck(err, "Failed to obtain connection to Ethereum 2 beacon chain block")
 
-		assert(blockInfoSlot != 0, "--slot is required")
+		config, err := grpc.FetchChainConfig(eth2GRPCConn)
+		errCheck(err, "Failed to obtain beacon chain configuration")
+		slotsPerEpoch := config["SlotsPerEpoch"].(uint64)
+		secondsPerSlot := config["SecondsPerSlot"].(uint64)
+
+		genesisTime, err := grpc.FetchGenesisTime(eth2GRPCConn)
+		errCheck(err, "Failed to obtain beacon chain genesis")
+
+		assert(blockInfoStream || blockInfoSlot != 0, "--slot or --stream is required")
+		assert(!blockInfoStream || blockInfoSlot == -1, "--slot and --stream are not supported together")
 
 		var slot uint64
 		if blockInfoSlot < 0 {
-			// TODO latest block.
+			slot, err = grpc.FetchLatestFilledSlot(eth2GRPCConn)
+			errCheck(err, "Failed to obtain slot of latest block")
 		} else {
 			slot = uint64(blockInfoSlot)
 		}
@@ -57,110 +72,18 @@ In quiet mode this will return 0 if the block information is present and not ski
 			outputIf(!quiet, "No block at that slot")
 			os.Exit(_exitFailure)
 		}
-		block := signedBlock.Block
-		body := block.Body
+		outputBlock(signedBlock, genesisTime, secondsPerSlot, slotsPerEpoch)
 
-		// General info.
-		outputIf(verbose, fmt.Sprintf("Parent root: %#x", block.ParentRoot))
-		outputIf(verbose, fmt.Sprintf("State root: %#x", block.StateRoot))
-		if len(body.Graffiti) > 0 && hex.EncodeToString(body.Graffiti) != "0000000000000000000000000000000000000000000000000000000000000000" {
-			if utf8.Valid(body.Graffiti) {
-				fmt.Printf("Graffiti: %s\n", string(body.Graffiti))
-			} else {
-				fmt.Printf("Graffiti: %#x\n", body.Graffiti)
-			}
-		}
-
-		// Eth1 data.
-		eth1Data := body.Eth1Data
-		outputIf(verbose, fmt.Sprintf("Ethereum 1 deposit count: %d", eth1Data.DepositCount))
-		outputIf(verbose, fmt.Sprintf("Ethereum 1 deposit root: %#x", eth1Data.DepositRoot))
-		outputIf(verbose, fmt.Sprintf("Ethereum 1 block hash: %#x", eth1Data.BlockHash))
-
-		// Attestations.
-		fmt.Printf("Attestations: %d\n", len(body.Attestations))
-		if verbose {
-			for i, att := range body.Attestations {
-				fmt.Printf("\t%d:\n", i)
-
-				fmt.Printf("\t\tCommittee index: %d\n", att.Data.CommitteeIndex)
-				fmt.Printf("\t\tAttesters: %d\n", countSetBits(att.AggregationBits))
-				fmt.Printf("\t\tAggregation bits: %s\n", bitsToString(att.AggregationBits))
-				fmt.Printf("\t\tSlot: %d\n", att.Data.Slot)
-				fmt.Printf("\t\tBeacon block root: %#x\n", att.Data.BeaconBlockRoot)
-				fmt.Printf("\t\tSource epoch: %d\n", att.Data.Source.Epoch)
-				fmt.Printf("\t\tSource root: %#x\n", att.Data.Source.Root)
-				fmt.Printf("\t\tTarget epoch: %d\n", att.Data.Target.Epoch)
-				fmt.Printf("\t\tTarget root: %#x\n", att.Data.Target.Root)
-			}
-		}
-
-		// Attester slashings.
-		fmt.Printf("Attester slashings: %d\n", len(body.AttesterSlashings))
-		if verbose {
-			for i, slashing := range body.AttesterSlashings {
-				fmt.Printf("\t%d:\n", i)
-
-				// Say what was slashed.
-				att1 := slashing.Attestation_1
-				att2 := slashing.Attestation_2
-				slashedIndices := intersection(att1.AttestingIndices, att2.AttestingIndices)
-				if len(slashedIndices) == 0 {
-					continue
+		if blockInfoStream {
+			stream, err := grpc.StreamBlocks(eth2GRPCConn)
+			errCheck(err, "Failed to obtain block stream")
+			for {
+				fmt.Println()
+				signedBlock, err := stream.Recv()
+				errCheck(err, "Failed to obtain block")
+				if signedBlock != nil {
+					outputBlock(signedBlock, genesisTime, secondsPerSlot, slotsPerEpoch)
 				}
-				fmt.Println("\t\tSlashed validators:")
-				for _, slashedIndex := range slashedIndices {
-					validator, err := grpc.FetchValidatorByIndex(eth2GRPCConn, slashedIndex)
-					errCheck(err, "Failed to obtain validator information")
-					fmt.Printf("\t\t\t%#x (%d)\n", validator.PublicKey, slashedIndex)
-				}
-
-				// Say what caused the slashing.
-				if att1.Data.Target.Epoch == att2.Data.Target.Epoch {
-					fmt.Printf("\t\tDouble voted for same target epoch (%d):\n", att1.Data.Target.Epoch)
-					if !bytes.Equal(att1.Data.Target.Root, att2.Data.Target.Root) {
-						fmt.Printf("\t\t\tAttestation 1 target epoch root: %#x\n", att1.Data.Target.Root)
-						fmt.Printf("\t\t\tAttestation 2target epoch root: %#x\n", att2.Data.Target.Root)
-					}
-					if !bytes.Equal(att1.Data.BeaconBlockRoot, att2.Data.BeaconBlockRoot) {
-						fmt.Printf("\t\t\tAttestation 1 beacon block root: %#x\n", att1.Data.BeaconBlockRoot)
-						fmt.Printf("\t\t\tAttestation 2 beacon block root: %#x\n", att2.Data.BeaconBlockRoot)
-					}
-				} else {
-					if att1.Data.Source.Epoch < att2.Data.Source.Epoch &&
-						att1.Data.Target.Epoch > att2.Data.Target.Epoch {
-						fmt.Printf("\t\tSurround voted:\n")
-						fmt.Printf("\t\t\tAttestation 1 vote: %d->%d\n", att1.Data.Source.Epoch, att1.Data.Target.Epoch)
-						fmt.Printf("\t\t\tAttestation 2 vote: %d->%d\n", att2.Data.Source.Epoch, att2.Data.Target.Epoch)
-					}
-				}
-			}
-		}
-
-		// TODO Proposer slashings once proposer slashings exist.
-
-		// Deposits.
-		fmt.Printf("Deposits: %d\n", len(body.Deposits))
-		if verbose {
-			for i, deposit := range body.Deposits {
-				data := deposit.Data
-				fmt.Printf("\t%d:\n", i)
-				fmt.Printf("\t\tPublic key: %#x\n", data.PublicKey)
-				fmt.Printf("\t\tAmount: %s\n", string2eth.GWeiToString(data.Amount, true))
-				fmt.Printf("\t\tWithdrawal credentials: %#x\n", data.WithdrawalCredentials)
-				fmt.Printf("\t\tSignature: %#x\n", data.Signature)
-			}
-		}
-
-		// Voluntary exits.
-		fmt.Printf("Voluntary exits: %d\n", len(body.VoluntaryExits))
-		if verbose {
-			for i, voluntaryExit := range body.VoluntaryExits {
-				fmt.Printf("\t%d:\n", i)
-				validator, err := grpc.FetchValidatorByIndex(eth2GRPCConn, voluntaryExit.Exit.ValidatorIndex)
-				errCheck(err, "Failed to obtain validator information")
-				fmt.Printf("\t\tValidator: %#x (%d)\n", validator.PublicKey, voluntaryExit.Exit.ValidatorIndex)
-				fmt.Printf("\t\tEpoch: %d\n", voluntaryExit.Exit.Epoch)
 			}
 		}
 
@@ -168,29 +91,155 @@ In quiet mode this will return 0 if the block information is present and not ski
 	},
 }
 
+func outputBlock(signedBlock *ethpb.SignedBeaconBlock, genesisTime time.Time, secondsPerSlot uint64, slotsPerEpoch uint64) {
+	block := signedBlock.Block
+	body := block.Body
+
+	// General info.
+	bodyRoot, err := ssz.HashTreeRoot(block)
+	errCheck(err, "Failed to calculate block body root")
+	fmt.Printf("Slot: %d\n", block.Slot)
+	fmt.Printf("Epoch: %d\n", block.Slot/slotsPerEpoch)
+	fmt.Printf("Timestamp: %v\n", time.Unix(genesisTime.Unix()+int64(block.Slot*secondsPerSlot), 0))
+	fmt.Printf("Block root: %#x\n", bodyRoot)
+	outputIf(verbose, fmt.Sprintf("Parent root: %#x", block.ParentRoot))
+	outputIf(verbose, fmt.Sprintf("State root: %#x", block.StateRoot))
+	if len(body.Graffiti) > 0 && hex.EncodeToString(body.Graffiti) != "0000000000000000000000000000000000000000000000000000000000000000" {
+		if utf8.Valid(body.Graffiti) {
+			fmt.Printf("Graffiti: %s\n", string(body.Graffiti))
+		} else {
+			fmt.Printf("Graffiti: %#x\n", body.Graffiti)
+		}
+	}
+
+	// Eth1 data.
+	eth1Data := body.Eth1Data
+	outputIf(verbose, fmt.Sprintf("Ethereum 1 deposit count: %d", eth1Data.DepositCount))
+	outputIf(verbose, fmt.Sprintf("Ethereum 1 deposit root: %#x", eth1Data.DepositRoot))
+	outputIf(verbose, fmt.Sprintf("Ethereum 1 block hash: %#x", eth1Data.BlockHash))
+
+	validatorCommittees := make(map[uint64][][]uint64)
+
+	// Attestations.
+	fmt.Printf("Attestations: %d\n", len(body.Attestations))
+	if verbose {
+		for i, att := range body.Attestations {
+			fmt.Printf("\t%d:\n", i)
+
+			// Fetch committees for this epoch if not already obtained.
+			committees, exists := validatorCommittees[att.Data.Slot]
+			if !exists {
+				attestationEpoch := att.Data.Slot / slotsPerEpoch
+				epochCommittees, err := grpc.FetchValidatorCommittees(eth2GRPCConn, attestationEpoch)
+				errCheck(err, "Failed to obtain committees")
+				for k, v := range epochCommittees {
+					validatorCommittees[k] = v
+				}
+				committees = validatorCommittees[att.Data.Slot]
+			}
+
+			fmt.Printf("\t\tCommittee index: %d\n", att.Data.CommitteeIndex)
+			fmt.Printf("\t\tAttesters: %d/%d\n", att.AggregationBits.Count(), att.AggregationBits.Len())
+			fmt.Printf("\t\tAggregation bits: %s\n", bitsToString(att.AggregationBits))
+			fmt.Printf("\t\tAttesting indices: %s\n", attestingIndices(att.AggregationBits, committees[att.Data.CommitteeIndex]))
+			fmt.Printf("\t\tSlot: %d\n", att.Data.Slot)
+			fmt.Printf("\t\tBeacon block root: %#x\n", att.Data.BeaconBlockRoot)
+			fmt.Printf("\t\tSource epoch: %d\n", att.Data.Source.Epoch)
+			fmt.Printf("\t\tSource root: %#x\n", att.Data.Source.Root)
+			fmt.Printf("\t\tTarget epoch: %d\n", att.Data.Target.Epoch)
+			fmt.Printf("\t\tTarget root: %#x\n", att.Data.Target.Root)
+		}
+	}
+
+	// Attester slashings.
+	fmt.Printf("Attester slashings: %d\n", len(body.AttesterSlashings))
+	if verbose {
+		for i, slashing := range body.AttesterSlashings {
+			// Say what was slashed.
+			att1 := slashing.Attestation_1
+			outputIf(debug, fmt.Sprintf("Attestation 1 attesting indices are %v", att1.AttestingIndices))
+			att2 := slashing.Attestation_2
+			outputIf(debug, fmt.Sprintf("Attestation 2 attesting indices are %v", att2.AttestingIndices))
+			slashedIndices := intersection(att1.AttestingIndices, att2.AttestingIndices)
+			if len(slashedIndices) == 0 {
+				continue
+			}
+
+			fmt.Printf("\t%d:\n", i)
+
+			fmt.Println("\t\tSlashed validators:")
+			for _, slashedIndex := range slashedIndices {
+				validator, err := grpc.FetchValidatorByIndex(eth2GRPCConn, slashedIndex)
+				errCheck(err, "Failed to obtain validator information")
+				fmt.Printf("\t\t\t%#x (%d)\n", validator.PublicKey, slashedIndex)
+			}
+
+			// Say what caused the slashing.
+			if att1.Data.Target.Epoch == att2.Data.Target.Epoch {
+				fmt.Printf("\t\tDouble voted for same target epoch (%d):\n", att1.Data.Target.Epoch)
+				if !bytes.Equal(att1.Data.Target.Root, att2.Data.Target.Root) {
+					fmt.Printf("\t\t\tAttestation 1 target epoch root: %#x\n", att1.Data.Target.Root)
+					fmt.Printf("\t\t\tAttestation 2target epoch root: %#x\n", att2.Data.Target.Root)
+				}
+				if !bytes.Equal(att1.Data.BeaconBlockRoot, att2.Data.BeaconBlockRoot) {
+					fmt.Printf("\t\t\tAttestation 1 beacon block root: %#x\n", att1.Data.BeaconBlockRoot)
+					fmt.Printf("\t\t\tAttestation 2 beacon block root: %#x\n", att2.Data.BeaconBlockRoot)
+				}
+			} else if att1.Data.Source.Epoch < att2.Data.Source.Epoch &&
+				att1.Data.Target.Epoch > att2.Data.Target.Epoch {
+				fmt.Printf("\t\tSurround voted:\n")
+				fmt.Printf("\t\t\tAttestation 1 vote: %d->%d\n", att1.Data.Source.Epoch, att1.Data.Target.Epoch)
+				fmt.Printf("\t\t\tAttestation 2 vote: %d->%d\n", att2.Data.Source.Epoch, att2.Data.Target.Epoch)
+			}
+		}
+	}
+
+	fmt.Printf("Proposer slashings: %d\n", len(body.ProposerSlashings))
+	// TODO verbose proposer slashings.
+
+	// Deposits.
+	fmt.Printf("Deposits: %d\n", len(body.Deposits))
+	if verbose {
+		for i, deposit := range body.Deposits {
+			data := deposit.Data
+			fmt.Printf("\t%d:\n", i)
+			fmt.Printf("\t\tPublic key: %#x\n", data.PublicKey)
+			fmt.Printf("\t\tAmount: %s\n", string2eth.GWeiToString(data.Amount, true))
+			fmt.Printf("\t\tWithdrawal credentials: %#x\n", data.WithdrawalCredentials)
+			fmt.Printf("\t\tSignature: %#x\n", data.Signature)
+		}
+	}
+
+	// Voluntary exits.
+	fmt.Printf("Voluntary exits: %d\n", len(body.VoluntaryExits))
+	if verbose {
+		for i, voluntaryExit := range body.VoluntaryExits {
+			fmt.Printf("\t%d:\n", i)
+			validator, err := grpc.FetchValidatorByIndex(eth2GRPCConn, voluntaryExit.Exit.ValidatorIndex)
+			errCheck(err, "Failed to obtain validator information")
+			fmt.Printf("\t\tValidator: %#x (%d)\n", validator.PublicKey, voluntaryExit.Exit.ValidatorIndex)
+			fmt.Printf("\t\tEpoch: %d\n", voluntaryExit.Exit.Epoch)
+		}
+	}
+}
+
 // intersection returns a list of items common between the two sets.
 func intersection(set1 []uint64, set2 []uint64) []uint64 {
 	sort.Slice(set1, func(i, j int) bool { return set1[i] < set1[j] })
 	sort.Slice(set2, func(i, j int) bool { return set2[i] < set2[j] })
 	res := make([]uint64, 0)
-	if len(set1) < len(set2) {
-		set1, set2 = set2, set1
-	}
 
+	set1Pos := 0
 	set2Pos := 0
-	set2LastIndex := len(set2) - 1
-	for set1Pos := range set1 {
-		for set1[set1Pos] == set2[set2Pos] {
-			res = append(res, set1[set1Pos])
-			if set2Pos == set2LastIndex {
-				break
-			}
+	for set1Pos < len(set1) && set2Pos < len(set2) {
+		switch {
+		case set1[set1Pos] < set2[set2Pos]:
+			set1Pos++
+		case set2[set2Pos] < set1[set1Pos]:
 			set2Pos++
-		}
-		for set1[set1Pos] > set2[set2Pos] {
-			if set2Pos == set2LastIndex {
-				break
-			}
+		default:
+			res = append(res, set1[set1Pos])
+			set1Pos++
 			set2Pos++
 		}
 	}
@@ -198,43 +247,37 @@ func intersection(set1 []uint64, set2 []uint64) []uint64 {
 	return res
 }
 
-// countSetBits counts the number of bits that are set in the given byte array.
-func countSetBits(input []byte) int {
-	total := 0
-	for _, x := range input {
-		item := uint8(x)
-		for item > 0 {
-			if item&0x01 == 1 {
-				total++
-			}
-			item >>= 1
+func bitsToString(input bitfield.Bitlist) string {
+	bits := int(input.Len())
+
+	res := ""
+	for i := 0; i < bits; i++ {
+		if input.BitAt(uint64(i)) {
+			res = fmt.Sprintf("%s✓", res)
+		} else {
+			res = fmt.Sprintf("%s✕", res)
+		}
+		if i%8 == 7 {
+			res = fmt.Sprintf("%s ", res)
 		}
 	}
-	return total
+	return strings.TrimSpace(res)
 }
 
-func bitsToString(input []byte) string {
-	elements := make([]string, len(input))
-	for i, x := range input {
-		item := uint8(x)
-		mask := uint8(0x80)
-		element := ""
-		for mask > 0 {
-			if item&mask != 0 {
-				element = fmt.Sprintf("%s✓", element)
-			} else {
-				element = fmt.Sprintf("%s✕", element)
-			}
-			mask >>= 1
+func attestingIndices(input bitfield.Bitlist, indices []uint64) string {
+	bits := int(input.Len())
+	res := ""
+	for i := 0; i < bits; i++ {
+		if input.BitAt(uint64(i)) {
+			res = fmt.Sprintf("%s%d ", res, indices[i])
 		}
-		elements[i] = element
 	}
-	return strings.Join(elements, " ")
+	return strings.TrimSpace(res)
 }
 
 func init() {
 	blockCmd.AddCommand(blockInfoCmd)
 	blockFlags(blockInfoCmd)
-	blockInfoCmd.Flags().Int64Var(&blockInfoSlot, "slot", -1, "the default slot")
-
+	blockInfoCmd.Flags().Int64Var(&blockInfoSlot, "slot", -1, "the latest slot with a block")
+	blockInfoCmd.Flags().BoolVar(&blockInfoStream, "stream", false, "continually stream blocks as they arrive")
 }

cmd/chaininfo.go

@@ -36,15 +36,19 @@ In quiet mode this will return 0 if the chain information can be obtained, other
 		config, err := grpc.FetchChainConfig(eth2GRPCConn)
 		errCheck(err, "Failed to obtain beacon chain configuration")
 
-		genesisTime, err := grpc.FetchGenesis(eth2GRPCConn)
+		genesisTime, err := grpc.FetchGenesisTime(eth2GRPCConn)
 		errCheck(err, "Failed to obtain genesis time")
 
 		if quiet {
 			os.Exit(_exitSuccess)
 		}
 
-		fmt.Printf("Genesis time: %s\n", genesisTime.Format(time.UnixDate))
-		outputIf(verbose, fmt.Sprintf("Genesis timestamp: %v", genesisTime.Unix()))
+		if genesisTime.Unix() == 0 {
+			fmt.Println("Genesis time: undefined")
+		} else {
+			fmt.Printf("Genesis time: %s\n", genesisTime.Format(time.UnixDate))
+			outputIf(verbose, fmt.Sprintf("Genesis timestamp: %v", genesisTime.Unix()))
+		}
 		outputIf(verbose, fmt.Sprintf("Genesis fork version: %0x", config["GenesisForkVersion"].([]byte)))
 		outputIf(verbose, fmt.Sprintf("Seconds per slot: %v", config["SecondsPerSlot"].(uint64)))
 		outputIf(verbose, fmt.Sprintf("Slots per epoch: %v", config["SlotsPerEpoch"].(uint64)))
@@ -64,3 +68,11 @@ func timestampToSlot(genesis int64, timestamp int64, secondsPerSlot uint64) uint
 	}
 	return uint64(timestamp-genesis) / secondsPerSlot
 }
+
+func slotToTimestamp(genesis int64, slot uint64, secondsPerSlot uint64) int64 {
+	return genesis + int64(slot*secondsPerSlot)
+}
+
+func epochToTimestamp(genesis int64, slot uint64, secondsPerSlot uint64, slotsPerEpoch uint64) int64 {
+	return genesis + int64(slot*secondsPerSlot*slotsPerEpoch)
+}

cmd/chainstatus.go

@@ -38,7 +38,7 @@ In quiet mode this will return 0 if the chain status can be obtained, otherwise
 		config, err := grpc.FetchChainConfig(eth2GRPCConn)
 		errCheck(err, "Failed to obtain beacon chain configuration")
 
-		genesisTime, err := grpc.FetchGenesis(eth2GRPCConn)
+		genesisTime, err := grpc.FetchGenesisTime(eth2GRPCConn)
 		errCheck(err, "Failed to obtain genesis time")
 
 		info, err := grpc.FetchChainInfo(eth2GRPCConn)
@@ -48,7 +48,8 @@ In quiet mode this will return 0 if the chain status can be obtained, otherwise
 			os.Exit(_exitSuccess)
 		}
 
-		slot := timestampToSlot(genesisTime.Unix(), time.Now().Unix(), config["SecondsPerSlot"].(uint64))
+		now := time.Now()
+		slot := timestampToSlot(genesisTime.Unix(), now.Unix(), config["SecondsPerSlot"].(uint64))
 		if chainStatusSlot {
 			fmt.Printf("Current slot: %d\n", slot)
 			fmt.Printf("Justified slot: %d\n", info.GetJustifiedSlot())
@@ -70,23 +71,35 @@ In quiet mode this will return 0 if the chain status can be obtained, otherwise
 			slotsPerEpoch := config["SlotsPerEpoch"].(uint64)
 			epoch := slot / slotsPerEpoch
 			fmt.Printf("Current epoch: %d\n", epoch)
-			fmt.Printf("Justified epoch: %d\n", info.GetJustifiedSlot()/slotsPerEpoch)
+			fmt.Printf("Justified epoch: %d\n", info.GetJustifiedEpoch())
 			if verbose {
 				distance := (slot - info.GetJustifiedSlot()) / slotsPerEpoch
-				fmt.Printf("Justified epoch distance %d\n", distance)
+				fmt.Printf("Justified epoch distance: %d\n", distance)
 			}
-			fmt.Printf("Finalized epoch: %d\n", info.GetFinalizedSlot()/slotsPerEpoch)
+			fmt.Printf("Finalized epoch: %d\n", info.GetFinalizedEpoch())
 			if verbose {
 				distance := (slot - info.GetFinalizedSlot()) / slotsPerEpoch
 				fmt.Printf("Finalized epoch distance: %d\n", distance)
 			}
 			if verbose {
 				fmt.Printf("Prior justified epoch: %d\n", info.GetPreviousJustifiedEpoch())
-				distance := (slot - info.GetPreviousJustifiedEpoch()) / slotsPerEpoch
+				distance := (slot - info.GetPreviousJustifiedSlot()) / slotsPerEpoch
 				fmt.Printf("Prior justified epoch distance: %d\n", distance)
 			}
 		}
 
+		if verbose {
+			slotsPerEpoch := config["SlotsPerEpoch"].(uint64)
+			secondsPerSlot := config["SecondsPerSlot"].(uint64)
+			epochStartSlot := (slot / slotsPerEpoch) * slotsPerEpoch
+			fmt.Printf("Epoch slots: %d-%d\n", epochStartSlot, epochStartSlot+slotsPerEpoch-1)
+			nextSlot := slotToTimestamp(genesisTime.Unix(), slot+1, secondsPerSlot)
+			fmt.Printf("Time until next slot: %2.1fs\n", float64(time.Until(time.Unix(nextSlot, 0)).Milliseconds())/1000)
+			nextEpoch := epochToTimestamp(genesisTime.Unix(), slot/slotsPerEpoch+1, secondsPerSlot, slotsPerEpoch)
+			fmt.Printf("Slots until next epoch: %d\n", (slot/slotsPerEpoch+1)*slotsPerEpoch-slot)
+			fmt.Printf("Time until next epoch: %2.1fs\n", float64(time.Until(time.Unix(nextEpoch, 0)).Milliseconds())/1000)
+		}
+
 		os.Exit(_exitSuccess)
 	},
 }

cmd/deposit.go

@@ -0,0 +1,32 @@
+// Copyright © 2019 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+// depositCmd represents the deposit command
+var depositCmd = &cobra.Command{
+	Use:   "deposit",
+	Short: "Manage Ethereum 2 deposits",
+	Long:  `Manage Ethereum 2 deposits.`,
+}
+
+func init() {
+	RootCmd.AddCommand(depositCmd)
+}
+
+func depositFlags(cmd *cobra.Command) {
+}

cmd/depositverify.go

@@ -0,0 +1,235 @@
+// Copyright © 2019, 2020 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"bytes"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	e2types "github.com/wealdtech/go-eth2-types/v2"
+	util "github.com/wealdtech/go-eth2-util"
+	string2eth "github.com/wealdtech/go-string2eth"
+)
+
+type depositData struct {
+	Name                  string `json:"name,omitempty"`
+	Account               string `json:"account,omitempty"`
+	PublicKey             string `json:"pubkey"`
+	WithdrawalCredentials string `json:"withdrawal_credentials"`
+	Signature             string `json:"signature"`
+	DepositDataRoot       string `json:"deposit_data_root"`
+	Value                 uint64 `json:"value"`
+	Version               uint64 `json:"version"`
+}
+
+var depositVerifyData string
+var depositVerifyWithdrawalPubKey string
+var depositVerifyValidatorPubKey string
+var depositVerifyDepositValue string
+
+var depositVerifyCmd = &cobra.Command{
+	Use:   "verify",
+	Short: "Verify deposit data matches requirements",
+	Long: `Verify deposit data matches requirements.  For example:
+
+    ethdo deposit verify --data=depositdata.json --withdrawalaccount=primary/current --value="32 Ether"
+
+The information generated can be passed to ethereal to create a deposit from the Ethereum 1 chain.
+
+In quiet mode this will return 0 if the the data can be generated correctly, otherwise 1.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		assert(depositVerifyData != "", "--data is required")
+		deposits, err := depositDataFromJSON(depositVerifyData)
+		errCheck(err, "Failed to fetch deposit data")
+
+		withdrawalCredentials := ""
+		if depositVerifyWithdrawalPubKey != "" {
+			withdrawalPubKeyBytes, err := hex.DecodeString(strings.TrimPrefix(depositVerifyWithdrawalPubKey, "0x"))
+			errCheck(err, "Invalid withdrawal public key")
+			assert(len(withdrawalPubKeyBytes) == 48, "Public key should be 48 bytes")
+			withdrawalPubKey, err := e2types.BLSPublicKeyFromBytes(withdrawalPubKeyBytes)
+			errCheck(err, "Value supplied with --withdrawalpubkey is not a valid public key")
+			withdrawalBytes := util.SHA256(withdrawalPubKey.Marshal())
+			withdrawalBytes[0] = 0 // BLS_WITHDRAWAL_PREFIX
+			withdrawalCredentials = fmt.Sprintf("%x", withdrawalBytes)
+		}
+		outputIf(debug, fmt.Sprintf("Withdrawal credentials are %s", withdrawalCredentials))
+
+		depositValue := uint64(0)
+		if depositVerifyDepositValue != "" {
+			depositValue, err = string2eth.StringToGWei(depositVerifyDepositValue)
+			errCheck(err, "Invalid value")
+			// This is hard-coded, to allow deposit data to be generated without a connection to the beacon node.
+			assert(depositValue >= 1000000000, "deposit value must be at least 1 Ether") // MIN_DEPOSIT_AMOUNT
+		}
+
+		validatorPubKeys := make(map[string]bool)
+		if depositVerifyValidatorPubKey != "" {
+			validatorPubKeys, err = validatorPubKeysFromInput(depositVerifyValidatorPubKey)
+			errCheck(err, "Failed to obtain validator public key(s))")
+		}
+
+		failures := false
+		for i, deposit := range deposits {
+			if withdrawalCredentials != "" {
+				if deposit.WithdrawalCredentials != withdrawalCredentials {
+					outputIf(!quiet, fmt.Sprintf("Invalid withdrawal credentials for deposit %d", i))
+					failures = true
+				}
+			}
+			if depositValue != 0 {
+				if deposit.Value != depositValue {
+					outputIf(!quiet, fmt.Sprintf("Invalid deposit value for deposit %d", i))
+					failures = true
+				}
+			}
+			if len(validatorPubKeys) != 0 {
+				if _, exists := validatorPubKeys[deposit.PublicKey]; !exists {
+					outputIf(!quiet, fmt.Sprintf("Unknown validator public key for deposit %d", i))
+					failures = true
+				}
+			}
+			outputIf(!quiet, fmt.Sprintf("Deposit %q verified", deposit.Name))
+		}
+
+		if failures {
+			os.Exit(_exitFailure)
+		}
+		os.Exit(_exitSuccess)
+	},
+}
+
+func validatorPubKeysFromInput(input string) (map[string]bool, error) {
+	pubKeys := make(map[string]bool)
+	var err error
+	var data []byte
+	// Input could be a public key or a path to public keys.
+	if strings.HasPrefix(input, "0x") {
+		// Looks like a public key.
+		pubKeyBytes, err := hex.DecodeString(strings.TrimPrefix(input, "0x"))
+		if err != nil {
+			return nil, errors.Wrap(err, "public key is not a hex string")
+		}
+		if len(pubKeyBytes) != 48 {
+			return nil, errors.New("public key should be 48 bytes")
+		}
+		pubKey, err := e2types.BLSPublicKeyFromBytes(pubKeyBytes)
+		if err != nil {
+			return nil, errors.Wrap(err, "invalid public key")
+		}
+		pubKeys[fmt.Sprintf("%x", pubKey.Marshal())] = true
+	} else {
+		// Assume it's a path to a file of public keys.
+		data, err = ioutil.ReadFile(input)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to find public key file")
+		}
+		lines := bytes.Split(bytes.Replace(data, []byte("\r\n"), []byte("\n"), -1), []byte("\n"))
+		if len(lines) == 0 {
+			return nil, errors.New("file has no public keys")
+		}
+		for _, line := range lines {
+			if len(line) == 0 {
+				continue
+			}
+			pubKeyBytes, err := hex.DecodeString(strings.TrimPrefix(string(line), "0x"))
+			if err != nil {
+				return nil, errors.Wrap(err, "public key is not a hex string")
+			}
+			if len(pubKeyBytes) != 48 {
+				return nil, errors.New("public key should be 48 bytes")
+			}
+			pubKey, err := e2types.BLSPublicKeyFromBytes(pubKeyBytes)
+			if err != nil {
+				return nil, errors.Wrap(err, "invalid public key")
+			}
+			pubKeys[fmt.Sprintf("%x", pubKey.Marshal())] = true
+		}
+	}
+
+	return pubKeys, nil
+}
+
+func depositDataFromJSON(input string) ([]*depositData, error) {
+	var err error
+	var data []byte
+	// Input could be JSON or a path to JSON
+	switch {
+	case strings.HasPrefix(input, "{"):
+		// Looks like JSON
+		data = []byte("[" + input + "]")
+	case strings.HasPrefix(input, "["):
+		// Looks like JSON array
+		data = []byte(input)
+	default:
+		// Assume it's a path to JSON
+		data, err = ioutil.ReadFile(input)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to find deposit data file")
+		}
+		if data[0] == '{' {
+			data = []byte("[" + string(data) + "]")
+		}
+	}
+	var depositData []*depositData
+	err = json.Unmarshal(data, &depositData)
+	if err != nil {
+		return nil, errors.Wrap(err, "data is not valid JSON")
+	}
+	if len(depositData) == 0 {
+		return nil, errors.New("no deposits supplied")
+	}
+	minVersion := depositData[0].Version
+	maxVersion := depositData[0].Version
+	for i := range depositData {
+		if depositData[i].PublicKey == "" {
+			return nil, fmt.Errorf("no public key for deposit %d", i)
+		}
+		if depositData[i].DepositDataRoot == "" {
+			return nil, fmt.Errorf("no data root for deposit %d", i)
+		}
+		if depositData[i].Signature == "" {
+			return nil, fmt.Errorf("no signature for deposit %d", i)
+		}
+		if depositData[i].WithdrawalCredentials == "" {
+			return nil, fmt.Errorf("no withdrawal credentials for deposit %d", i)
+		}
+		if depositData[i].Value < 1000000000 {
+			return nil, fmt.Errorf("Deposit amount too small for deposit %d", i)
+		}
+		if depositData[i].Version > maxVersion {
+			maxVersion = depositData[i].Version
+		}
+		if depositData[i].Version < minVersion {
+			minVersion = depositData[i].Version
+		}
+	}
+	return depositData, nil
+}
+
+func init() {
+	depositCmd.AddCommand(depositVerifyCmd)
+	depositFlags(depositVerifyCmd)
+	depositVerifyCmd.Flags().StringVar(&depositVerifyData, "data", "", "JSON data, or path to JSON data")
+	depositVerifyCmd.Flags().StringVar(&depositVerifyWithdrawalPubKey, "withdrawalpubkey", "", "Public key of the account to which the validator funds will be withdrawn")
+	depositVerifyCmd.Flags().StringVar(&depositVerifyDepositValue, "depositvalue", "", "Value of the amount to be deposited")
+	depositVerifyCmd.Flags().StringVar(&depositVerifyValidatorPubKey, "validatorpubkey", "", "Public key(s) of the account(s) that will be carrying out validation")
+}

cmd/nodeinfo.go

@@ -36,7 +36,7 @@ In quiet mode this will return 0 if the node information can be obtained, otherw
 		config, err := grpc.FetchChainConfig(eth2GRPCConn)
 		errCheck(err, "Failed to obtain beacon chain configuration")
 
-		genesisTime, err := grpc.FetchGenesis(eth2GRPCConn)
+		genesisTime, err := grpc.FetchGenesisTime(eth2GRPCConn)
 		errCheck(err, "Failed to obtain genesis time")
 
 		if quiet {
@@ -55,10 +55,14 @@ In quiet mode this will return 0 if the node information can be obtained, otherw
 		errCheck(err, "Failed to obtain syncing state")
 		fmt.Printf("Syncing: %v\n", syncing)
 
-		slot := timestampToSlot(genesisTime.Unix(), time.Now().Unix(), config["SecondsPerSlot"].(uint64))
-		fmt.Printf("Current slot: %d\n", slot)
-		fmt.Printf("Current epoch: %d\n", slot/config["SlotsPerEpoch"].(uint64))
-		outputIf(verbose, fmt.Sprintf("Genesis timestamp: %v", genesisTime.Unix()))
+		if genesisTime.Unix() == 0 {
+			fmt.Println("Not reached genesis")
+		} else {
+			slot := timestampToSlot(genesisTime.Unix(), time.Now().Unix(), config["SecondsPerSlot"].(uint64))
+			fmt.Printf("Current slot: %d\n", slot)
+			fmt.Printf("Current epoch: %d\n", slot/config["SlotsPerEpoch"].(uint64))
+			outputIf(verbose, fmt.Sprintf("Genesis timestamp: %v", genesisTime.Unix()))
+		}
 
 		os.Exit(_exitSuccess)
 	},

cmd/passphrases.go

@@ -0,0 +1,39 @@
+// Copyright © 2019 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import "github.com/spf13/viper"
+
+// getStorePassphrases() fetches the store passphrase supplied by the user.
+func getStorePassphrase() string {
+	return viper.GetString("store-passphrase")
+}
+
+// getWalletPassphrases() fetches the wallet passphrase supplied by the user.
+func getWalletPassphrase() string {
+	return viper.GetString("wallet-passphrase")
+}
+
+// getPassphrases() fetches the passphrases supplied by the user.
+func getPassphrases() []string {
+	return viper.GetStringSlice("passphrase")
+}
+
+// getPassphrase fetches the passphrase supplied by the user.
+func getPassphrase() string {
+	passphrases := getPassphrases()
+	assert(len(passphrases) != 0, "passphrase is required")
+	assert(len(passphrases) == 1, "multiple passphrases supplied; cannot continue")
+	return passphrases[0]
+}

cmd/root.go

@@ -15,27 +15,25 @@ package cmd
 
 import (
 	"context"
-	"crypto/tls"
-	"crypto/x509"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"regexp"
 	"sort"
+	"strconv"
 	"strings"
 	"time"
 
 	homedir "github.com/mitchellh/go-homedir"
 	"github.com/pkg/errors"
-	"github.com/prysmaticlabs/go-ssz"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 	e2types "github.com/wealdtech/go-eth2-types/v2"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	dirk "github.com/wealdtech/go-eth2-wallet-dirk"
+	filesystem "github.com/wealdtech/go-eth2-wallet-store-filesystem"
+	s3 "github.com/wealdtech/go-eth2-wallet-store-s3"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 	"google.golang.org/grpc"
-	"google.golang.org/grpc/credentials"
-
-	wallet "github.com/wealdtech/go-eth2-wallet"
-	wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 var cfgFile string
@@ -43,24 +41,14 @@ var quiet bool
 var verbose bool
 var debug bool
 
-// For transaction commands.
-var wait bool
-var generate bool
-
 // Root variables, present for all commands.
 var rootStore string
-var rootAccount string
-var rootStorePassphrase string
-var rootWalletPassphrase string
-var rootAccountPassphrase string
+
+// Store for wallet actions.
+var store e2wtypes.Store
 
 // Remote connection.
 var remote bool
-var remoteAddr string
-var clientCert string
-var clientKey string
-var serverCACert string
-var remoteGRPCConn *grpc.ClientConn
 
 // Prysm connection.
 var eth2GRPCConn *grpc.ClientConn
@@ -89,42 +77,38 @@ func persistentPreRun(cmd *cobra.Command, args []string) {
 	verbose = viper.GetBool("verbose")
 	debug = viper.GetBool("debug")
 	rootStore = viper.GetString("store")
-	rootAccount = viper.GetString("account")
-	rootStorePassphrase = viper.GetString("storepassphrase")
-	rootWalletPassphrase = viper.GetString("walletpassphrase")
-	rootAccountPassphrase = viper.GetString("passphrase")
-
-	// ...lots of commands have transaction-related flags (e.g.) 'wait'
-	// as options but we want to bind them to this particular command and
-	// this is the first chance we get
-	if cmd.Flags().Lookup("wait") != nil {
-		err := viper.BindPFlag("wait", cmd.Flags().Lookup("wait"))
-		errCheck(err, "Failed to set wait option")
-	}
-	wait = viper.GetBool("wait")
-	if cmd.Flags().Lookup("generate") != nil {
-		err := viper.BindPFlag("generate", cmd.Flags().Lookup("generate"))
-		errCheck(err, "Failed to set generate option")
-	}
-	generate = viper.GetBool("generate")
 
 	if quiet && verbose {
-		die("Cannot supply both quiet and verbose flags")
+		fmt.Println("Cannot supply both quiet and verbose flags")
 	}
 	if quiet && debug {
-		die("Cannot supply both quiet and debug flags")
-	}
-	if generate && wait {
-		die("Cannot supply both generate and wait flags")
+		fmt.Println("Cannot supply both quiet and debug flags")
 	}
 
 	if viper.GetString("remote") == "" {
 		// Set up our wallet store
-		err := wallet.SetStore(rootStore, []byte(rootStorePassphrase))
-		errCheck(err, "Failed to set up wallet store")
+		switch rootStore {
+		case "s3":
+			assert(viper.GetString("base-dir") == "", "--basedir does not apply for the s3 store")
+			var err error
+			store, err = s3.New(s3.WithPassphrase([]byte(getStorePassphrase())))
+			errCheck(err, "Failed to access Amazon S3 wallet store")
+		case "filesystem":
+			opts := make([]filesystem.Option, 0)
+			if getStorePassphrase() != "" {
+				opts = append(opts, filesystem.WithPassphrase([]byte(getStorePassphrase())))
+			}
+			if viper.GetString("base-dir") != "" {
+				opts = append(opts, filesystem.WithLocation(viper.GetString("base-dir")))
+			}
+			store = filesystem.New(opts...)
+		default:
+			die(fmt.Sprintf("Unsupported wallet store %s", rootStore))
+		}
+		err := e2wallet.UseStore(store)
+		errCheck(err, "Failed to use defined wallet store")
 	} else {
-		err := initRemote()
-		errCheck(err, "Failed to connect to remote wallet")
+		remote = true
 	}
 }
 
@@ -159,15 +143,19 @@ func init() {
 	if err := viper.BindPFlag("account", RootCmd.PersistentFlags().Lookup("account")); err != nil {
 		panic(err)
 	}
+	RootCmd.PersistentFlags().String("basedir", "", "Base directory for filesystem wallets")
+	if err := viper.BindPFlag("base-dir", RootCmd.PersistentFlags().Lookup("basedir")); err != nil {
+		panic(err)
+	}
 	RootCmd.PersistentFlags().String("storepassphrase", "", "Passphrase for store (if applicable)")
-	if err := viper.BindPFlag("storepassphrase", RootCmd.PersistentFlags().Lookup("storepassphrase")); err != nil {
+	if err := viper.BindPFlag("store-passphrase", RootCmd.PersistentFlags().Lookup("storepassphrase")); err != nil {
 		panic(err)
 	}
 	RootCmd.PersistentFlags().String("walletpassphrase", "", "Passphrase for wallet (if applicable)")
-	if err := viper.BindPFlag("walletpassphrase", RootCmd.PersistentFlags().Lookup("walletpassphrase")); err != nil {
+	if err := viper.BindPFlag("wallet-passphrase", RootCmd.PersistentFlags().Lookup("walletpassphrase")); err != nil {
 		panic(err)
 	}
-	RootCmd.PersistentFlags().String("passphrase", "", "Passphrase for account (if applicable)")
+	RootCmd.PersistentFlags().StringSlice("passphrase", nil, "Passphrase for account (if applicable)")
 	if err := viper.BindPFlag("passphrase", RootCmd.PersistentFlags().Lookup("passphrase")); err != nil {
 		panic(err)
 	}
@@ -225,6 +213,7 @@ func initConfig() {
 	}
 
 	viper.SetEnvPrefix("ETHDO")
+	viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))
 	viper.AutomaticEnv() // read in environment variables that match
 
 	// If a config file is found, read it in.
@@ -244,46 +233,29 @@ func outputIf(condition bool, msg string) {
 	}
 }
 
-// walletAndAccountNamesFromPath breaks a path in to wallet and account names.
-func walletAndAccountNamesFromPath(path string) (string, string, error) {
-	if len(path) == 0 {
-		return "", "", errors.New("invalid account format")
-	}
-	index := strings.Index(path, "/")
-	if index == -1 {
-		// Just the wallet
-		return path, "", nil
-	}
-	if index == len(path)-1 {
-		// Trailing /
-		return path[:index], "", nil
-	}
-	return path[:index], path[index+1:], nil
-}
-
 // walletFromPath obtains a wallet given a path specification.
-func walletFromPath(path string) (wtypes.Wallet, error) {
-	walletName, _, err := walletAndAccountNamesFromPath(path)
+func walletFromPath(path string) (e2wtypes.Wallet, error) {
+	walletName, _, err := e2wallet.WalletAndAccountNames(path)
 	if err != nil {
 		return nil, err
 	}
-	w, err := wallet.OpenWallet(walletName)
+	wallet, err := e2wallet.OpenWallet(walletName)
 	if err != nil {
 		if strings.Contains(err.Error(), "failed to decrypt wallet") {
 			return nil, errors.New("Incorrect store passphrase")
 		}
 		return nil, err
 	}
-	return w, nil
+	return wallet, nil
 }
 
 // accountFromPath obtains an account given a path specification.
-func accountFromPath(path string) (wtypes.Account, error) {
+func accountFromPath(ctx context.Context, path string) (e2wtypes.Account, error) {
 	wallet, err := walletFromPath(path)
 	if err != nil {
 		return nil, err
 	}
-	_, accountName, err := walletAndAccountNamesFromPath(path)
+	_, accountName, err := e2wallet.WalletAndAccountNames(path)
 	if err != nil {
 		return nil, err
 	}
@@ -291,35 +263,29 @@ func accountFromPath(path string) (wtypes.Account, error) {
 		return nil, errors.New("no account name")
 	}
 
-	if wallet.Type() == "hierarchical deterministic" && strings.HasPrefix(accountName, "m/") && rootWalletPassphrase != "" {
-		err = wallet.Unlock([]byte(rootWalletPassphrase))
-		if err != nil {
-			return nil, errors.New("invalid wallet passphrase")
+	if wallet.Type() == "hierarchical deterministic" && strings.HasPrefix(accountName, "m/") {
+		assert(getWalletPassphrase() != "", "--walletpassphrase is required for direct path derivations")
+
+		locker, isLocker := wallet.(e2wtypes.WalletLocker)
+		if isLocker {
+			err = locker.Unlock(ctx, []byte(viper.GetString("wallet-passphrase")))
+			if err != nil {
+				return nil, errors.New("invalid wallet passphrase")
+			}
+			defer errCheck(locker.Lock(context.Background()), "failed to re-lock account")
 		}
-		defer wallet.Lock()
 	}
-	return wallet.AccountByName(accountName)
+
+	accountByNameProvider, isAccountByNameProvider := wallet.(e2wtypes.WalletAccountByNameProvider)
+	if !isAccountByNameProvider {
+		return nil, errors.New("wallet cannot obtain accounts by name")
+	}
+	return accountByNameProvider.AccountByName(ctx, accountName)
 }
 
 // accountsFromPath obtains 0 or more accounts given a path specification.
-func accountsFromPath(path string) ([]wtypes.Account, error) {
-	accounts := make([]wtypes.Account, 0)
-
-	// Quick check to see if it's a single account
-	account, err := accountFromPath(path)
-	if err == nil && account != nil {
-		accounts = append(accounts, account)
-		return accounts, nil
-	}
-
-	wallet, err := walletFromPath(path)
-	if err != nil {
-		return nil, err
-	}
-	_, accountSpec, err := walletAndAccountNamesFromPath(path)
-	if err != nil {
-		return nil, err
-	}
+func accountsFromPath(ctx context.Context, wallet e2wtypes.Wallet, accountSpec string) ([]e2wtypes.Account, error) {
+	accounts := make([]e2wtypes.Account, 0)
 
 	if accountSpec == "" {
 		accountSpec = "^.*$"
@@ -328,7 +294,7 @@ func accountsFromPath(path string) ([]wtypes.Account, error) {
 	}
 	re := regexp.MustCompile(accountSpec)
 
-	for account := range wallet.Accounts() {
+	for account := range wallet.Accounts(ctx) {
 		if re.Match([]byte(account.Name())) {
 			accounts = append(accounts, account)
 		}
@@ -342,55 +308,6 @@ func accountsFromPath(path string) ([]wtypes.Account, error) {
 	return accounts, nil
 }
 
-// signStruct signs an arbitrary structure.
-func signStruct(account wtypes.Account, data interface{}, domain []byte) (e2types.Signature, error) {
-	objRoot, err := ssz.HashTreeRoot(data)
-	outputIf(debug, fmt.Sprintf("Object root is %x", objRoot))
-	if err != nil {
-		return nil, err
-	}
-
-	return signRoot(account, objRoot, domain)
-}
-
-// SigningContainer is the container for signing roots with a domain.
-// Contains SSZ sizes to allow for correct calculation of root.
-type SigningContainer struct {
-	Root   []byte `ssz-size:"32"`
-	Domain []byte `ssz-size:"32"`
-}
-
-// signRoot signs a root.
-func signRoot(account wtypes.Account, root [32]byte, domain []byte) (e2types.Signature, error) {
-	container := &SigningContainer{
-		Root:   root[:],
-		Domain: domain,
-	}
-	outputIf(debug, fmt.Sprintf("Signing container:\n\troot: %x\n\tdomain: %x", container.Root, container.Domain))
-	signingRoot, err := ssz.HashTreeRoot(container)
-	if err != nil {
-		return nil, err
-	}
-	outputIf(debug, fmt.Sprintf("Signing root: %x", signingRoot))
-	return sign(account, signingRoot[:])
-}
-
-// sign signs arbitrary data.
-func sign(account wtypes.Account, data []byte) (e2types.Signature, error) {
-	if !account.IsUnlocked() {
-		return nil, errors.New("account must be unlocked to sign")
-	}
-
-	outputIf(debug, fmt.Sprintf("Signing %x (%d)", data, len(data)))
-	return account.Sign(data)
-}
-
-// addTransactionFlags adds flags used in all transactions.
-func addTransactionFlags(cmd *cobra.Command) {
-	cmd.Flags().Bool("generate", false, "Do not send the transaction; generate and output as a hex string only")
-	cmd.Flags().Bool("wait", false, "wait for the transaction to be mined before returning")
-}
-
 // connect connects to an Ethereum 2 endpoint.
 func connect() error {
 	connection := ""
@@ -412,46 +329,77 @@ func connect() error {
 	return err
 }
 
-func initRemote() error {
-	remote = true
-	remoteAddr = viper.GetString("remote")
-	clientCert = viper.GetString("client-cert")
-	assert(clientCert != "", "--remote requires --client-cert")
-	clientKey = viper.GetString("client-key")
-	assert(clientKey != "", "--remote requires --client-key")
-	serverCACert = viper.GetString("server-ca-cert")
-	assert(serverCACert != "", "--remote requires --server-ca-cert")
-
-	// Load the client certificates.
-	clientPair, err := tls.LoadX509KeyPair(clientCert, clientKey)
-	if err != nil {
-		return errors.Wrap(err, "failed to access client certificate/key")
-	}
-
-	tlsCfg := &tls.Config{
-		Certificates: []tls.Certificate{clientPair},
-	}
-	if serverCACert != "" {
-		// Load the CA for the server certificate.
-		serverCA, err := ioutil.ReadFile(serverCACert)
-		if err != nil {
-			return errors.Wrap(err, "failed to access CA certificate")
+// bestPublicKey returns the best public key for operations.
+// It prefers the composite public key if present, otherwise the public key.
+func bestPublicKey(account e2wtypes.Account) (e2types.PublicKey, error) {
+	var pubKey e2types.PublicKey
+	publicKeyProvider, isCompositePublicKeyProvider := account.(e2wtypes.AccountCompositePublicKeyProvider)
+	if isCompositePublicKeyProvider {
+		pubKey = publicKeyProvider.CompositePublicKey()
+	} else {
+		publicKeyProvider, isPublicKeyProvider := account.(e2wtypes.AccountPublicKeyProvider)
+		if isPublicKeyProvider {
+			pubKey = publicKeyProvider.PublicKey()
+		} else {
+			return nil, errors.New("account does not provide a public key")
 		}
-		cp := x509.NewCertPool()
-		if !cp.AppendCertsFromPEM(serverCA) {
-			return errors.Wrap(err, "failed to add CA certificate")
-		}
-		tlsCfg.RootCAs = cp
 	}
-
-	clientCreds := credentials.NewTLS(tlsCfg)
-
-	opts := []grpc.DialOption{
-		// Require TLS.
-		grpc.WithTransportCredentials(clientCreds),
-		// Block until server responds.
-		grpc.WithBlock(),
-	}
-	remoteGRPCConn, err = grpc.Dial(remoteAddr, opts...)
-	return err
+	return pubKey, nil
+}
+
+// remotesToEndpoints generates endpoints from remote addresses.
+func remotesToEndpoints(remotes []string) ([]*dirk.Endpoint, error) {
+	endpoints := make([]*dirk.Endpoint, 0)
+	for _, remote := range remotes {
+		parts := strings.Split(remote, ":")
+		if len(parts) != 2 {
+			return nil, fmt.Errorf("invalid remote %q", remote)
+		}
+		port, err := strconv.ParseUint(parts[1], 10, 32)
+		if err != nil {
+			return nil, errors.Wrap(err, fmt.Sprintf("invalid port in remote %q", remote))
+		}
+		endpoints = append(endpoints, dirk.NewEndpoint(parts[0], uint32(port)))
+	}
+	return endpoints, nil
+}
+
+// Oepn a wallet, local or remote.
+func openWallet() (e2wtypes.Wallet, error) {
+	var err error
+	// Obtain the name of the wallet.
+	walletName := viper.GetString("wallet")
+	if walletName == "" {
+		walletName, _, err = e2wallet.WalletAndAccountNames(viper.GetString("account"))
+	}
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to obtain wallet name")
+	}
+	if walletName == "" {
+		return nil, errors.New("no wallet name provided")
+	}
+
+	return openNamedWallet(walletName)
+}
+
+// Open a named wallet, local or remote.
+func openNamedWallet(walletName string) (e2wtypes.Wallet, error) {
+	if viper.GetString("remote") != "" {
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+		assert(viper.GetString("client-cert") != "", "remote connections require client-cert")
+		assert(viper.GetString("client-key") != "", "remote connections require client-key")
+		credentials, err := dirk.ComposeCredentials(ctx, viper.GetString("client-cert"), viper.GetString("client-key"), viper.GetString("server-ca-cert"))
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to build dirk credentials")
+		}
+
+		endpoints, err := remotesToEndpoints([]string{viper.GetString("remote")})
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse remote servers")
+		}
+
+		return dirk.OpenWallet(ctx, walletName, credentials, endpoints)
+	}
+	return walletFromPath(walletName)
 }

cmd/signature.go

@@ -15,11 +15,10 @@ package cmd
 
 import (
 	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
 )
 
-var signatureData string
-var signatureDomain string
-
 // signatureCmd represents the signature command
 var signatureCmd = &cobra.Command{
 	Use:     "signature",
@@ -32,7 +31,23 @@ func init() {
 	RootCmd.AddCommand(signatureCmd)
 }
 
+var dataFlag *pflag.Flag
+var domainFlag *pflag.Flag
+
 func signatureFlags(cmd *cobra.Command) {
-	cmd.Flags().StringVar(&signatureData, "data", "", "the hex string of data")
-	cmd.Flags().StringVar(&signatureDomain, "domain", "", "the hex string of the BLS domain (defaults to 0x0000000000000000)")
+	if dataFlag == nil {
+		cmd.Flags().String("data", "", "the data, as a hex string")
+		dataFlag = cmd.Flags().Lookup("data")
+		if err := viper.BindPFlag("signature-data", dataFlag); err != nil {
+			panic(err)
+		}
+		cmd.Flags().String("domain", "0x0000000000000000000000000000000000000000000000000000000000000000", "the BLS domain, as a hex string")
+		domainFlag = cmd.Flags().Lookup("domain")
+		if err := viper.BindPFlag("signature-domain", domainFlag); err != nil {
+			panic(err)
+		}
+	} else {
+		cmd.Flags().AddFlag(dataFlag)
+		cmd.Flags().AddFlag(domainFlag)
+	}
 }

cmd/signatureaggregate.go

@@ -0,0 +1,110 @@
+// Copyright © 2017-2020 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"encoding/hex"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	"github.com/herumi/bls-eth-go-binary/bls"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/wealdtech/ethdo/util"
+)
+
+var signatureAggregateSignatures []string
+
+// signatureAggregateCmd represents the signature aggregate command
+var signatureAggregateCmd = &cobra.Command{
+	Use:   "aggregate",
+	Short: "Aggregate signatures",
+	Long: `Aggregate signatures, either threshold or absolute.  For example:
+
+    ethdo signature aggregate --signatures=0x5f24e819400c6a8ee2bfc014343cd971b7eb707320025a7bcd83e621e26c35b7,
+
+Signatures are specified as "signature" for simple aggregation, and as "id:signature" for threshold aggregation.
+
+In quiet mode this will return 0 if the signatures can be aggregated, otherwise 1.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		assert(len(signatureAggregateSignatures) > 1, "multiple signatures required to aggregate")
+		var signature *bls.Sign
+		var err error
+		if strings.Contains(signatureAggregateSignatures[0], ":") {
+			signature, err = generateThresholdSignature()
+		} else {
+			signature, err = generateAggregateSignature()
+		}
+		errCheck(err, "Failed to aggregate signature")
+
+		outputIf(!quiet, fmt.Sprintf("%#x", signature.Serialize()))
+		os.Exit(_exitSuccess)
+	},
+}
+
+func generateThresholdSignature() (*bls.Sign, error) {
+	ids := make([]bls.ID, len(signatureAggregateSignatures))
+	sigs := make([]bls.Sign, len(signatureAggregateSignatures))
+
+	for i := range signatureAggregateSignatures {
+		parts := strings.Split(signatureAggregateSignatures[i], ":")
+		if len(parts) != 2 {
+			return nil, errors.New("invalid threshold signature format")
+		}
+		id, err := strconv.ParseUint(parts[0], 10, 64)
+		if err != nil {
+			return nil, errors.Wrap(err, "invalid threshold signature ID")
+		}
+		ids[i] = *util.BLSID(id)
+		sigBytes, err := hex.DecodeString(strings.TrimPrefix(parts[1], "0x"))
+		if err != nil {
+			return nil, errors.Wrap(err, "invalid threshold signature ID")
+		}
+		if err := sigs[i].Deserialize(sigBytes); err != nil {
+			return nil, errors.Wrap(err, "invalid signature")
+		}
+	}
+
+	var compositeSig bls.Sign
+	if err := compositeSig.Recover(sigs, ids); err != nil {
+		return nil, err
+	}
+
+	return &compositeSig, nil
+}
+
+func generateAggregateSignature() (*bls.Sign, error) {
+	sigs := make([]bls.Sign, len(signatureAggregateSignatures))
+	for i := range signatureAggregateSignatures {
+		sigBytes, err := hex.DecodeString(strings.TrimPrefix(signatureAggregateSignatures[i], "0x"))
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to decode signature")
+		}
+		if err := sigs[i].Deserialize(sigBytes); err != nil {
+			return nil, errors.Wrap(err, "invalid signature")
+		}
+	}
+	var aggregateSig bls.Sign
+	aggregateSig.Aggregate(sigs)
+
+	return &aggregateSig, nil
+}
+
+func init() {
+	signatureCmd.AddCommand(signatureAggregateCmd)
+	signatureAggregateCmd.Flags().StringArrayVar(&signatureAggregateSignatures, "signature", nil, "a signature to aggregate (supply once for each signature)")
+	signatureFlags(signatureAggregateCmd)
+}

cmd/signaturesign.go

@@ -20,9 +20,10 @@ import (
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	pb "github.com/wealdtech/eth2-signer-api/pb/v1"
 	"github.com/wealdtech/go-bytesutil"
 	e2types "github.com/wealdtech/go-eth2-types/v2"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 // signatureSignCmd represents the signature sign command
@@ -31,59 +32,46 @@ var signatureSignCmd = &cobra.Command{
 	Short: "Sign a 32-byte piece of data",
 	Long: `Sign presented data.  For example:
 
-    ethereal signature sign --data=0x5f24e819400c6a8ee2bfc014343cd971b7eb707320025a7bcd83e621e26c35b7 --account="Personal wallet/Operations" --passphrase="my account passphrase"
+    ethdo signature sign --data=0x5f24e819400c6a8ee2bfc014343cd971b7eb707320025a7bcd83e621e26c35b7 --account="Personal wallet/Operations" --passphrase="my account passphrase"
 
 In quiet mode this will return 0 if the data can be signed, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(signatureData != "", "--data is required")
-		data, err := bytesutil.FromHexString(signatureData)
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+
+		assert(viper.GetString("signature-data") != "", "--data is required")
+		data, err := bytesutil.FromHexString(viper.GetString("signature-data"))
 		errCheck(err, "Failed to parse data")
 		assert(len(data) == 32, "data to sign must be 32 bytes")
 
 		domain := e2types.Domain(e2types.DomainType([4]byte{0, 0, 0, 0}), e2types.ZeroForkVersion, e2types.ZeroGenesisValidatorsRoot)
-		if signatureDomain != "" {
-			domainBytes, err := bytesutil.FromHexString(signatureDomain)
+		if viper.GetString("signature-domain") != "" {
+			domain, err = bytesutil.FromHexString(viper.GetString("signature-domain"))
 			errCheck(err, "Failed to parse domain")
-			assert(len(domainBytes) == 32, "Domain data invalid")
-			domain = domainBytes
+			assert(len(domain) == 32, "Domain data invalid")
 		}
+		outputIf(debug, fmt.Sprintf("Domain is %#x", domain))
 
-		assert(rootAccount != "", "--account is required")
+		assert(viper.GetString("account") != "", "--account is required")
 
-		var signature e2types.Signature
-		if remote {
-			signClient := pb.NewSignerClient(remoteGRPCConn)
-			signReq := &pb.SignRequest{
-				Id:     &pb.SignRequest_Account{Account: rootAccount},
-				Data:   data,
-				Domain: domain,
-			}
-			ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
-			defer cancel()
-			resp, err := signClient.Sign(ctx, signReq)
-			errCheck(err, "Failed to sign")
-			switch resp.State {
-			case pb.ResponseState_DENIED:
-				die("Signing request denied")
-			case pb.ResponseState_FAILED:
-				die("Signing request failed")
-			case pb.ResponseState_SUCCEEDED:
-				signature, err = e2types.BLSSignatureFromBytes(resp.Signature)
-				errCheck(err, "Invalid signature")
-			}
-		} else {
-			account, err := accountFromPath(rootAccount)
-			errCheck(err, "Failed to access account for signing")
-			err = account.Unlock([]byte(rootAccountPassphrase))
-			errCheck(err, "Failed to unlock account for signing")
-			var fixedSizeData [32]byte
-			copy(fixedSizeData[:], data)
-			defer account.Lock()
-			signature, err = signRoot(account, fixedSizeData, domain)
-			errCheck(err, "Failed to sign data")
-		}
+		wallet, err := openWallet()
+		errCheck(err, "Failed to access wallet")
 
-		outputIf(!quiet, fmt.Sprintf("0x%096x", signature.Marshal()))
+		_, accountName, err := e2wallet.WalletAndAccountNames(viper.GetString("account"))
+		errCheck(err, "Failed to obtain account name")
+
+		accountByNameProvider, isAccountByNameProvider := wallet.(e2wtypes.WalletAccountByNameProvider)
+		assert(isAccountByNameProvider, "wallet does not support obtaining accounts by name")
+
+		account, err := accountByNameProvider.AccountByName(ctx, accountName)
+		errCheck(err, "Failed to obtain account")
+
+		var fixedSizeData [32]byte
+		copy(fixedSizeData[:], data)
+		signature, err := signRoot(account, fixedSizeData, domain)
+		errCheck(err, "Failed to sign")
+
+		outputIf(!quiet, fmt.Sprintf("%#x", signature.Marshal()))
 		os.Exit(_exitSuccess)
 	},
 }

cmd/signatureverify.go

@@ -15,17 +15,20 @@ package cmd
 
 import (
 	"context"
+	"fmt"
 	"os"
 
 	"github.com/prysmaticlabs/go-ssz"
 	"github.com/spf13/cobra"
-	pb "github.com/wealdtech/eth2-signer-api/pb/v1"
+	"github.com/spf13/viper"
 	"github.com/wealdtech/go-bytesutil"
 	e2types "github.com/wealdtech/go-eth2-types/v2"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 var signatureVerifySignature string
-var signatureVerifyPubKey string
+var signatureVerifySigner string
 
 // signatureVerifyCmd represents the signature verify command
 var signatureVerifyCmd = &cobra.Command{
@@ -33,12 +36,12 @@ var signatureVerifyCmd = &cobra.Command{
 	Short: "Verify signed data",
 	Long: `Verify signed data.  For example:
 
-    ethereal signature verify --data=0x5f24e819400c6a8ee2bfc014343cd971b7eb707320025a7bcd83e621e26c35b7 --signature=0x8888... --account="Personal wallet/Operations"
+    ethdo signature verify --data=0x5f24e819400c6a8ee2bfc014343cd971b7eb707320025a7bcd83e621e26c35b7 --signature=0x8888... --account="Personal wallet/Operations"
 
 In quiet mode this will return 0 if the data can be signed, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(signatureData != "", "--data is required")
-		data, err := bytesutil.FromHexString(signatureData)
+		assert(viper.GetString("signature-data") != "", "--data is required")
+		data, err := bytesutil.FromHexString(viper.GetString("signature-data"))
 		errCheck(err, "Failed to parse data")
 		assert(len(data) == 32, "data to verify must be 32 bytes")
 
@@ -49,45 +52,44 @@ In quiet mode this will return 0 if the data can be signed, otherwise 1.`,
 		errCheck(err, "Invalid signature")
 
 		domain := e2types.Domain(e2types.DomainType([4]byte{0, 0, 0, 0}), e2types.ZeroForkVersion, e2types.ZeroGenesisValidatorsRoot)
-		if signatureDomain != "" {
-			domainBytes, err := bytesutil.FromHexString(signatureDomain)
+		if viper.GetString("signature-domain") != "" {
+			domain, err = bytesutil.FromHexString(viper.GetString("signature-domain"))
 			errCheck(err, "Failed to parse domain")
-			assert(len(domainBytes) == 32, "Domain data invalid")
+			assert(len(domain) == 32, "Domain data invalid")
 		}
 
 		var pubKey e2types.PublicKey
-		assert(signatureVerifyPubKey == "" || rootAccount == "", "Either --pubkey or --account should be supplied")
-		if rootAccount != "" {
-			if remote {
-				listerClient := pb.NewListerClient(remoteGRPCConn)
-				listAccountsReq := &pb.ListAccountsRequest{
-					Paths: []string{
-						rootAccount,
-					},
-				}
-				resp, err := listerClient.ListAccounts(context.Background(), listAccountsReq)
-				errCheck(err, "Failed to access account")
-				assert(resp.State == pb.ResponseState_SUCCEEDED, "Failed to obtain account")
-				assert(len(resp.Accounts) == 1, "No such account")
-				pubKey, err = e2types.BLSPublicKeyFromBytes(resp.Accounts[0].PublicKey)
-				errCheck(err, "Invalid public key provided for account")
-			} else {
-				account, err := accountFromPath(rootAccount)
-				errCheck(err, "Unknown account")
-				pubKey = account.PublicKey()
-			}
+		assert(signatureVerifySigner != "" || viper.GetString("account") != "", "Either --signer or --account should be supplied")
+		if viper.GetString("account") != "" {
+			wallet, err := openWallet()
+			errCheck(err, "Failed to access wallet")
+			_, accountName, err := e2wallet.WalletAndAccountNames(viper.GetString("account"))
+			errCheck(err, "Failed to obtain account name")
+
+			accountByNameProvider, isAccountByNameProvider := wallet.(e2wtypes.WalletAccountByNameProvider)
+			assert(isAccountByNameProvider, "wallet cannot obtain accounts by name")
+			ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+			defer cancel()
+			account, err := accountByNameProvider.AccountByName(ctx, accountName)
+			errCheck(err, "Failed to obtain account")
+			pubKey, err = bestPublicKey(account)
+			errCheck(err, "Failed to obtain account's public key")
 		} else {
-			pubKeyBytes, err := bytesutil.FromHexString(signatureVerifyPubKey)
+			pubKeyBytes, err := bytesutil.FromHexString(signatureVerifySigner)
 			errCheck(err, "Invalid public key")
 			pubKey, err = e2types.BLSPublicKeyFromBytes(pubKeyBytes)
 			errCheck(err, "Invalid public key")
 		}
-		container := &SigningContainer{
+		outputIf(debug, fmt.Sprintf("Public key is %#x", pubKey.Marshal()))
+		container := &signingContainer{
 			Root:   data,
 			Domain: domain,
 		}
+		outputIf(debug, fmt.Sprintf("Data root is %#x", data))
+		outputIf(debug, fmt.Sprintf("Domain is %#x", domain))
 		root, err := ssz.HashTreeRoot(container)
 		errCheck(err, "Failed to create signing root")
+		outputIf(debug, fmt.Sprintf("Signing root is %#x", root))
 
 		verified := signature.Verify(root[:], pubKey)
 		if !verified {
@@ -103,5 +105,5 @@ func init() {
 	signatureCmd.AddCommand(signatureVerifyCmd)
 	signatureFlags(signatureVerifyCmd)
 	signatureVerifyCmd.Flags().StringVar(&signatureVerifySignature, "signature", "", "the signature to verify")
-	signatureVerifyCmd.Flags().StringVar(&signatureVerifyPubKey, "signer", "", "the public key of the signer (only if --account is not supplied)")
+	signatureVerifyCmd.Flags().StringVar(&signatureVerifySigner, "signer", "", "the public key of the signer (only if --account is not supplied)")
 }

cmd/signing.go

@@ -0,0 +1,160 @@
+// Copyright © 2020 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/go-ssz"
+	"github.com/spf13/viper"
+	e2types "github.com/wealdtech/go-eth2-types/v2"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
+	wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
+)
+
+// signStruct signs an arbitrary structure.
+func signStruct(account wtypes.Account, data interface{}, domain []byte) (e2types.Signature, error) {
+	objRoot, err := ssz.HashTreeRoot(data)
+	outputIf(debug, fmt.Sprintf("Object root is %#x", objRoot))
+	if err != nil {
+		return nil, err
+	}
+
+	return signRoot(account, objRoot, domain)
+}
+
+// SigningContainer is the container for signing roots with a domain.
+// Contains SSZ sizes to allow for correct calculation of root.
+type signingContainer struct {
+	Root   []byte `ssz-size:"32"`
+	Domain []byte `ssz-size:"32"`
+}
+
+// signRoot signs a root.
+func signRoot(account wtypes.Account, root [32]byte, domain []byte) (e2types.Signature, error) {
+	if _, isProtectingSigner := account.(e2wtypes.AccountProtectingSigner); isProtectingSigner {
+		// Signer signs the data to sign itself.
+		return signGeneric(account, root[:], domain)
+	}
+
+	// Build the signing data manually.
+	container := &signingContainer{
+		Root:   root[:],
+		Domain: domain,
+	}
+	outputIf(debug, fmt.Sprintf("Signing container:\n root: %#x\n domain: %#x", container.Root, container.Domain))
+	signingRoot, err := ssz.HashTreeRoot(container)
+	if err != nil {
+		return nil, err
+	}
+	outputIf(debug, fmt.Sprintf("Signing root: %#x", signingRoot))
+	return sign(account, signingRoot[:])
+}
+
+func signGeneric(account wtypes.Account, data []byte, domain []byte) (e2types.Signature, error) {
+	alreadyUnlocked, err := unlock(account)
+	if err != nil {
+		return nil, err
+	}
+	outputIf(debug, fmt.Sprintf("Signing %x (%d)", data, len(data)))
+	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+	defer cancel()
+
+	signer, isProtectingSigner := account.(e2wtypes.AccountProtectingSigner)
+	if !isProtectingSigner {
+		return nil, errors.New("account does not provide generic signing")
+	}
+
+	signature, err := signer.SignGeneric(ctx, data, domain)
+	errCheck(err, "failed to sign")
+	if !alreadyUnlocked {
+		if err := lock(account); err != nil {
+			return nil, errors.Wrap(err, "failed to lock account")
+		}
+	}
+	return signature, err
+}
+
+// sign signs arbitrary data, handling unlocking and locking as required.
+func sign(account wtypes.Account, data []byte) (e2types.Signature, error) {
+	alreadyUnlocked, err := unlock(account)
+	if err != nil {
+		return nil, err
+	}
+	outputIf(debug, fmt.Sprintf("Signing %x (%d)", data, len(data)))
+	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+	defer cancel()
+
+	signer, isSigner := account.(e2wtypes.AccountSigner)
+	if !isSigner {
+		return nil, errors.New("account does not provide signing")
+	}
+
+	signature, err := signer.Sign(ctx, data)
+	errCheck(err, "failed to sign")
+	if !alreadyUnlocked {
+		if err := lock(account); err != nil {
+			return nil, errors.Wrap(err, "failed to lock account")
+		}
+	}
+	return signature, err
+}
+
+// unlock attempts to unlock an account.  It returns true if the account was already unlocked.
+func unlock(account e2wtypes.Account) (bool, error) {
+	locker, isAccountLocker := account.(e2wtypes.AccountLocker)
+	if !isAccountLocker {
+		outputIf(debug, "Account does not support unlocking")
+		// This account doesn't support unlocking; return okay.
+		return true, nil
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+	alreadyUnlocked, err := locker.IsUnlocked(ctx)
+	cancel()
+	if err != nil {
+		return false, errors.Wrap(err, "unable to ascertain if account is unlocked")
+	}
+
+	if alreadyUnlocked {
+		return true, nil
+	}
+
+	// Not already unlocked; attempt to unlock it.
+	for _, passphrase := range getPassphrases() {
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		err = locker.Unlock(ctx, []byte(passphrase))
+		cancel()
+		if err == nil {
+			// Unlocked.
+			return false, nil
+		}
+	}
+
+	// Failed to unlock it.
+	return false, errors.New("failed to unlock account")
+}
+
+// lock attempts to lock an account.
+func lock(account e2wtypes.Account) error {
+	locker, isAccountLocker := account.(e2wtypes.AccountLocker)
+	if !isAccountLocker {
+		return nil
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+	defer cancel()
+	return locker.Lock(ctx)
+}

cmd/validatordepositdata.go

@@ -14,21 +14,28 @@
 package cmd
 
 import (
+	"context"
+	"encoding/hex"
 	"fmt"
 	"os"
 	"strings"
 
 	"github.com/prysmaticlabs/go-ssz"
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"github.com/wealdtech/ethdo/grpc"
 	e2types "github.com/wealdtech/go-eth2-types/v2"
 	util "github.com/wealdtech/go-eth2-util"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
 	string2eth "github.com/wealdtech/go-string2eth"
 )
 
 var validatorDepositDataValidatorAccount string
 var validatorDepositDataWithdrawalAccount string
+var validatorDepositDataWithdrawalPubKey string
 var validatorDepositDataDepositValue string
 var validatorDepositDataRaw bool
+var validatorDepositDataForkVersion string
 
 var validatorDepositDataCmd = &cobra.Command{
 	Use:   "depositdata",
@@ -43,57 +50,92 @@ The information generated can be passed to ethereal to create a deposit from the
 
 In quiet mode this will return 0 if the the data can be generated correctly, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+
 		assert(validatorDepositDataValidatorAccount != "", "--validatoraccount is required")
-		validatorWallet, err := walletFromPath(validatorDepositDataValidatorAccount)
+		validatorWalletName, validatorAccountSpec, err := e2wallet.WalletAndAccountNames(validatorDepositDataValidatorAccount)
+		errCheck(err, "Failed to obtain wallet and account names")
+		validatorWallet, err := openNamedWallet(validatorWalletName)
 		errCheck(err, "Failed to obtain validator wallet")
-		validatorAccounts, err := accountsFromPath(validatorDepositDataValidatorAccount)
+		validatorAccounts, err := accountsFromPath(ctx, validatorWallet, validatorAccountSpec)
 		errCheck(err, "Failed to obtain validator account")
 		assert(len(validatorAccounts) > 0, "Failed to obtain validator account")
-		if len(validatorAccounts) == 1 {
-			outputIf(debug, fmt.Sprintf("Validator public key is %048x", validatorAccounts[0].PublicKey().Marshal()))
-		} else {
-			for _, validatorAccount := range validatorAccounts {
-				outputIf(verbose, fmt.Sprintf("Creating deposit for %s/%s", validatorWallet.Name(), validatorAccount.Name()))
-				outputIf(debug, fmt.Sprintf("Validator public key is %048x", validatorAccount.PublicKey().Marshal()))
-			}
+
+		for _, validatorAccount := range validatorAccounts {
+			outputIf(verbose, fmt.Sprintf("Creating deposit for %s/%s", validatorWallet.Name(), validatorAccount.Name()))
+			pubKey, err := bestPublicKey(validatorAccount)
+			errCheck(err, "Validator account does not provide a public key")
+			outputIf(debug, fmt.Sprintf("Validator public key is %#x", pubKey.Marshal()))
 		}
 
-		assert(validatorDepositDataWithdrawalAccount != "", "--withdrawalaccount is required")
-		withdrawalAccount, err := accountFromPath(validatorDepositDataWithdrawalAccount)
-		errCheck(err, "Failed to obtain withdrawal account")
-		outputIf(debug, fmt.Sprintf("Withdrawal public key is %048x", withdrawalAccount.PublicKey().Marshal()))
-
-		withdrawalCredentials := util.SHA256(withdrawalAccount.PublicKey().Marshal())
-		errCheck(err, "Failed to hash withdrawal credentials")
-		// TODO fetch this from the node.
-		withdrawalCredentials[0] = byte(0) // BLSWithdrawalPrefix
-		outputIf(debug, fmt.Sprintf("Withdrawal credentials are %032x", withdrawalCredentials))
+		assert(validatorDepositDataWithdrawalAccount != "" || validatorDepositDataWithdrawalPubKey != "", "--withdrawalaccount or --withdrawalpubkey is required")
+		var withdrawalCredentials []byte
+		if validatorDepositDataWithdrawalAccount != "" {
+			withdrawalAccount, err := accountFromPath(ctx, validatorDepositDataWithdrawalAccount)
+			errCheck(err, "Failed to obtain withdrawal account")
+			pubKey, err := bestPublicKey(withdrawalAccount)
+			errCheck(err, "Withdrawal account does not provide a public key")
+			outputIf(debug, fmt.Sprintf("Withdrawal public key is %#x", pubKey.Marshal()))
+			withdrawalCredentials = util.SHA256(pubKey.Marshal())
+			errCheck(err, "Failed to hash withdrawal credentials")
+		} else {
+			withdrawalPubKeyBytes, err := hex.DecodeString(strings.TrimPrefix(validatorDepositDataWithdrawalPubKey, "0x"))
+			errCheck(err, "Invalid withdrawal public key")
+			assert(len(withdrawalPubKeyBytes) == 48, "Public key should be 48 bytes")
+			withdrawalPubKey, err := e2types.BLSPublicKeyFromBytes(withdrawalPubKeyBytes)
+			errCheck(err, "Value supplied with --withdrawalpubkey is not a valid public key")
+			withdrawalCredentials = util.SHA256(withdrawalPubKey.Marshal())
+			errCheck(err, "Failed to hash withdrawal credentials")
+		}
+		// This is hard-coded, to allow deposit data to be generated without a connection to the beacon node.
+		withdrawalCredentials[0] = byte(0) // BLS_WITHDRAWAL_PREFIX
+		outputIf(debug, fmt.Sprintf("Withdrawal credentials are %#x", withdrawalCredentials))
 
 		assert(validatorDepositDataDepositValue != "", "--depositvalue is required")
 		val, err := string2eth.StringToGWei(validatorDepositDataDepositValue)
 		errCheck(err, "Invalid value")
-		// TODO fetch this from the node.
-		assert(val >= 1000000000, "deposit value must be at least 1 Ether")
+		// This is hard-coded, to allow deposit data to be generated without a connection to the beacon node.
+		assert(val >= 1000000000, "deposit value must be at least 1 Ether") // MIN_DEPOSIT_AMOUNT
 
 		// For each key, generate deposit data
 		outputs := make([]string, 0)
 		for _, validatorAccount := range validatorAccounts {
+			validatorPubKey, err := bestPublicKey(validatorAccount)
+			errCheck(err, "Validator account does not provide a public key")
 			depositData := struct {
 				PubKey                []byte `ssz-size:"48"`
 				WithdrawalCredentials []byte `ssz-size:"32"`
 				Value                 uint64
 			}{
-				PubKey:                validatorAccount.PublicKey().Marshal(),
+				PubKey:                validatorPubKey.Marshal(),
 				WithdrawalCredentials: withdrawalCredentials,
 				Value:                 val,
 			}
 			outputIf(debug, fmt.Sprintf("Deposit data:\n\tPublic key: %x\n\tWithdrawal credentials: %x\n\tValue: %d", depositData.PubKey, depositData.WithdrawalCredentials, depositData.Value))
-			domain := e2types.Domain(e2types.DomainDeposit, e2types.ZeroForkVersion, e2types.ZeroGenesisValidatorsRoot)
+
+			var forkVersion []byte
+			if validatorDepositDataForkVersion != "" {
+				forkVersion, err = hex.DecodeString(strings.TrimPrefix(validatorDepositDataForkVersion, "0x"))
+				errCheck(err, fmt.Sprintf("Failed to decode fork version %s", validatorDepositDataForkVersion))
+				assert(len(forkVersion) == 4, "Fork version must be exactly four bytes")
+			} else {
+				err := connect()
+				errCheck(err, "Failed to connect to beacon node")
+				config, err := grpc.FetchChainConfig(eth2GRPCConn)
+				if err != nil {
+					outputIf(!quiet, "Could not connect to beacon node; supply a connection with --connection or provide a fork version with --forkversion to generate a deposit")
+					os.Exit(_exitFailure)
+				}
+				genesisForkVersion, exists := config["GenesisForkVersion"]
+				assert(exists, "Failed to obtain genesis fork version")
+				forkVersion = genesisForkVersion.([]byte)
+			}
+			outputIf(debug, fmt.Sprintf("Fork version is %x", forkVersion))
+
+			domain := e2types.Domain(e2types.DomainDeposit, forkVersion, e2types.ZeroGenesisValidatorsRoot)
 			outputIf(debug, fmt.Sprintf("Domain is %x", domain))
-			err = validatorAccount.Unlock([]byte(rootAccountPassphrase))
-			errCheck(err, "Failed to unlock validator account")
 			signature, err := signStruct(validatorAccount, depositData, domain)
-			validatorAccount.Lock()
 			errCheck(err, "Failed to generate deposit data signature")
 
 			signedDepositData := struct {
@@ -102,12 +144,18 @@ In quiet mode this will return 0 if the the data can be generated correctly, oth
 				Value                 uint64
 				Signature             []byte `ssz-size:"96"`
 			}{
-				PubKey:                validatorAccount.PublicKey().Marshal(),
+				PubKey:                validatorPubKey.Marshal(),
 				WithdrawalCredentials: withdrawalCredentials,
 				Value:                 val,
 				Signature:             signature.Marshal(),
 			}
-			outputIf(debug, fmt.Sprintf("Signed deposit data:\n\tPublic key: %x\n\tWithdrawal credentials: %x\n\tValue: %d\n\tSignature: %x", signedDepositData.PubKey, signedDepositData.WithdrawalCredentials, signedDepositData.Value, signedDepositData.Signature))
+			if debug {
+				fmt.Printf("Signed deposit data:\n")
+				fmt.Printf(" Public key: %#x\n", signedDepositData.PubKey)
+				fmt.Printf(" Withdrawal credentials: %#x\n", signedDepositData.WithdrawalCredentials)
+				fmt.Printf(" Value: %d\n", signedDepositData.Value)
+				fmt.Printf(" Signature: %#x\n", signedDepositData.Signature)
+			}
 
 			depositDataRoot, err := ssz.HashTreeRoot(signedDepositData)
 			errCheck(err, "Failed to generate deposit data root")
@@ -126,7 +174,7 @@ In quiet mode this will return 0 if the the data can be generated correctly, oth
 				txData = append(txData, depositDataRoot[:]...)
 				// Validator public key (pad to 32-byte boundary)
 				txData = append(txData, []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30}...)
-				txData = append(txData, validatorAccount.PublicKey().Marshal()...)
+				txData = append(txData, validatorPubKey.Marshal()...)
 				txData = append(txData, []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}...)
 				// Withdrawal credentials
 				txData = append(txData, []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20}...)
@@ -136,7 +184,7 @@ In quiet mode this will return 0 if the the data can be generated correctly, oth
 				txData = append(txData, signedDepositData.Signature...)
 				outputs = append(outputs, fmt.Sprintf("%#x", txData))
 			} else {
-				outputs = append(outputs, fmt.Sprintf(`{"account":"%s","pubkey":"%048x","withdrawal_credentials":"%032x","signature":"%096x","value":%d,"deposit_data_root":"%032x","version":1}`, fmt.Sprintf("%s/%s", validatorWallet.Name(), validatorAccount.Name()), signedDepositData.PubKey, signedDepositData.WithdrawalCredentials, signedDepositData.Signature, val, depositDataRoot))
+				outputs = append(outputs, fmt.Sprintf(`{"name":"Deposit for %s","account":"%s","pubkey":"%#x","withdrawal_credentials":"%#x","signature":"%#x","value":%d,"deposit_data_root":"%#x","version":2}`, fmt.Sprintf("%s/%s", validatorWallet.Name(), validatorAccount.Name()), fmt.Sprintf("%s/%s", validatorWallet.Name(), validatorAccount.Name()), signedDepositData.PubKey, signedDepositData.WithdrawalCredentials, signedDepositData.Signature, val, depositDataRoot))
 			}
 		}
 
@@ -159,6 +207,8 @@ func init() {
 	validatorFlags(validatorDepositDataCmd)
 	validatorDepositDataCmd.Flags().StringVar(&validatorDepositDataValidatorAccount, "validatoraccount", "", "Account of the account carrying out the validation")
 	validatorDepositDataCmd.Flags().StringVar(&validatorDepositDataWithdrawalAccount, "withdrawalaccount", "", "Account of the account to which the validator funds will be withdrawn")
+	validatorDepositDataCmd.Flags().StringVar(&validatorDepositDataWithdrawalPubKey, "withdrawalpubkey", "", "Public key of the account to which the validator funds will be withdrawn")
 	validatorDepositDataCmd.Flags().StringVar(&validatorDepositDataDepositValue, "depositvalue", "", "Value of the amount to be deposited")
 	validatorDepositDataCmd.Flags().BoolVar(&validatorDepositDataRaw, "raw", false, "Print raw deposit data transaction data")
+	validatorDepositDataCmd.Flags().StringVar(&validatorDepositDataForkVersion, "forkversion", "", "Use a hard-coded fork version (default is to fetch it from the node)")
 }

cmd/validatorexit.go

@@ -46,30 +46,33 @@ var validatorExitCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the transaction has been generated, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+
 		err := connect()
 		errCheck(err, "Failed to obtain connect to Ethereum 2 beacon chain node")
 
-		exit, signature := validatorExitHandleInput()
-		validatorExitHandleExit(exit, signature)
+		exit, signature := validatorExitHandleInput(ctx)
+		validatorExitHandleExit(ctx, exit, signature)
 		os.Exit(_exitSuccess)
 	},
 }
 
-func validatorExitHandleInput() (*ethpb.VoluntaryExit, e2types.Signature) {
+func validatorExitHandleInput(ctx context.Context) (*ethpb.VoluntaryExit, e2types.Signature) {
 	if validatorExitJSON != "" {
 		return validatorExitHandleJSONInput(validatorExitJSON)
 	}
-	if rootAccount != "" {
-		account, err := accountFromPath(rootAccount)
+	if viper.GetString("account") != "" {
+		account, err := accountFromPath(ctx, viper.GetString("account"))
 		errCheck(err, "Failed to access account")
-		return validatorExitHandleAccountInput(account)
+		return validatorExitHandleAccountInput(ctx, account)
 	}
 	if validatorExitKey != "" {
 		privKeyBytes, err := hex.DecodeString(strings.TrimPrefix(validatorExitKey, "0x"))
 		errCheck(err, fmt.Sprintf("Failed to decode key %s", validatorExitKey))
 		account, err := util.NewScratchAccount(privKeyBytes, nil)
 		errCheck(err, "Invalid private key")
-		return validatorExitHandleAccountInput(account)
+		return validatorExitHandleAccountInput(ctx, account)
 	}
 	die("one of --json, --account or --key is required")
 	return nil, nil
@@ -88,13 +91,17 @@ func validatorExitHandleJSONInput(input string) (*ethpb.VoluntaryExit, e2types.S
 	return exit, signature
 }
 
-func validatorExitHandleAccountInput(account e2wtypes.Account) (*ethpb.VoluntaryExit, e2types.Signature) {
+func validatorExitHandleAccountInput(ctx context.Context, account e2wtypes.Account) (*ethpb.VoluntaryExit, e2types.Signature) {
 	exit := &ethpb.VoluntaryExit{}
 
 	// Beacon chain config required for later work.
 	config, err := grpc.FetchChainConfig(eth2GRPCConn)
 	errCheck(err, "Failed to obtain beacon chain configuration")
-	secondsPerEpoch := config["SecondsPerSlot"].(uint64) * config["SlotsPerEpoch"].(uint64)
+	secondsPerSlot, ok := config["SecondsPerSlot"].(uint64)
+	assert(ok, "Failed to obtain seconds per slot from chain")
+	slotsPerEpoch, ok := config["SlotsPerEpoch"].(uint64)
+	assert(ok, "Failed to obtain slots per epoch from chain")
+	secondsPerEpoch := secondsPerSlot * slotsPerEpoch
 
 	// Fetch the validator's index.
 	index, err := grpc.FetchValidatorIndex(eth2GRPCConn, account)
@@ -113,9 +120,11 @@ func validatorExitHandleAccountInput(account e2wtypes.Account) (*ethpb.Voluntary
 		validator, err := grpc.FetchValidator(eth2GRPCConn, account)
 		errCheck(err, "Failed to obtain validator information")
 		outputIf(debug, fmt.Sprintf("Activation epoch is %v", validator.ActivationEpoch))
-		earliestExitEpoch := validator.ActivationEpoch + config["PersistentCommitteePeriod"].(uint64)
+		shardCommitteePeriod, ok := config["ShardCommitteePeriod"].(uint64)
+		assert(ok, "Failed to obtain shard committee period from chain")
+		earliestExitEpoch := validator.ActivationEpoch + shardCommitteePeriod
 
-		genesisTime, err := grpc.FetchGenesis(eth2GRPCConn)
+		genesisTime, err := grpc.FetchGenesisTime(eth2GRPCConn)
 		errCheck(err, "Failed to obtain genesis time")
 
 		currentEpoch := uint64(time.Since(genesisTime).Seconds()) / secondsPerEpoch
@@ -129,25 +138,25 @@ func validatorExitHandleAccountInput(account e2wtypes.Account) (*ethpb.Voluntary
 
 	// TODO fetch current fork version from config (currently using genesis fork version)
 	currentForkVersion := config["GenesisForkVersion"].([]byte)
-	// TODO fetch genesis validators root from API.
-	genesisValidatorsRoot := []byte{
-		0x55, 0x13, 0x8e, 0x46, 0xa2, 0x44, 0x2d, 0x2f,
-		0xfd, 0x89, 0x55, 0x0a, 0x0f, 0x30, 0x56, 0x21,
-		0x27, 0xbc, 0x56, 0xe6, 0x24, 0x4d, 0x0f, 0xa2,
-		0xb5, 0x18, 0xa3, 0xf4, 0xce, 0x19, 0x33, 0x7e,
-	}
+	outputIf(debug, fmt.Sprintf("Current fork version is %x", currentForkVersion))
+	genesisValidatorsRoot, err := grpc.FetchGenesisValidatorsRoot(eth2GRPCConn)
+	outputIf(debug, fmt.Sprintf("Genesis validators root is %x", genesisValidatorsRoot))
+	errCheck(err, "Failed to obtain genesis validators root")
 	domain := e2types.Domain(e2types.DomainVoluntaryExit, currentForkVersion, genesisValidatorsRoot)
 
-	err = account.Unlock([]byte(rootAccountPassphrase))
+	alreadyUnlocked, err := unlock(account)
 	errCheck(err, "Failed to unlock account; please confirm passphrase is correct")
 	signature, err := signStruct(account, exit, domain)
+	if !alreadyUnlocked {
+		errCheck(lock(account), "Failed to re-lock account")
+	}
 	errCheck(err, "Failed to sign exit proposal")
 
 	return exit, signature
 }
 
 // validatorExitHandleExit handles the exit request.
-func validatorExitHandleExit(exit *ethpb.VoluntaryExit, signature e2types.Signature) {
+func validatorExitHandleExit(ctx context.Context, exit *ethpb.VoluntaryExit, signature e2types.Signature) {
 	if validatorExitJSONOutput {
 		data := &validatorExitData{
 			Epoch:          exit.Epoch,
@@ -164,8 +173,6 @@ func validatorExitHandleExit(exit *ethpb.VoluntaryExit, signature e2types.Signat
 		}
 
 		validatorClient := ethpb.NewBeaconNodeValidatorClient(eth2GRPCConn)
-		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
-		defer cancel()
 		_, err := validatorClient.ProposeExit(ctx, proposal)
 		errCheck(err, "Failed to propose exit")
 		outputIf(!quiet, "Validator exit transaction sent")
@@ -179,7 +186,6 @@ func init() {
 	validatorExitCmd.Flags().StringVar(&validatorExitKey, "key", "", "Private key if account not known by ethdo")
 	validatorExitCmd.Flags().BoolVar(&validatorExitJSONOutput, "json-output", false, "Print JSON transaction; do not broadcast to network")
 	validatorExitCmd.Flags().StringVar(&validatorExitJSON, "json", "", "Use JSON as created by --json-output to exit")
-	addTransactionFlags(validatorExitCmd)
 }
 
 type validatorExitData struct {

cmd/validatorinfo.go

@@ -14,6 +14,7 @@
 package cmd
 
 import (
+	"context"
 	"encoding/hex"
 	"fmt"
 	"os"
@@ -22,9 +23,11 @@ import (
 
 	ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 	"github.com/wealdtech/ethdo/grpc"
 	"github.com/wealdtech/ethdo/util"
-	types "github.com/wealdtech/go-eth2-wallet-types/v2"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 	string2eth "github.com/wealdtech/go-string2eth"
 )
 
@@ -40,15 +43,23 @@ var validatorInfoCmd = &cobra.Command{
 In quiet mode this will return 0 if the validator information can be obtained, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
 		// Sanity checking and setup.
-		assert(rootAccount != "" || validatorInfoPubKey != "", "--account or --pubkey is required")
+		assert(viper.GetString("account") != "" || validatorInfoPubKey != "", "--account or --pubkey is required")
 
 		err := connect()
 		errCheck(err, "Failed to obtain connection to Ethereum 2 beacon chain node")
 
-		var account types.Account
-		if rootAccount != "" {
-			account, err = accountFromPath(rootAccount)
-			errCheck(err, "Failed to access account")
+		var account e2wtypes.Account
+		if viper.GetString("account") != "" {
+			wallet, err := openWallet()
+			errCheck(err, "Failed to access wallet")
+			_, accountName, err := e2wallet.WalletAndAccountNames(viper.GetString("account"))
+			errCheck(err, "Failed to obtain account name")
+			accountByNameProvider, isAccountByNameProvider := wallet.(e2wtypes.WalletAccountByNameProvider)
+			assert(isAccountByNameProvider, "wallet cannot obtain accounts by name")
+			ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+			defer cancel()
+			account, err = accountByNameProvider.AccountByName(ctx, accountName)
+			errCheck(err, "Failed to obtain account")
 		} else {
 			pubKeyBytes, err := hex.DecodeString(strings.TrimPrefix(validatorInfoPubKey, "0x"))
 			errCheck(err, fmt.Sprintf("Failed to decode public key %s", validatorInfoPubKey))

cmd/version.go

@@ -30,7 +30,7 @@ var versionCmd = &cobra.Command{
 
     ethdo version.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("1.4.8")
+		fmt.Println("1.5.0-prerelease")
 		if viper.GetBool("verbose") {
 			buildInfo, ok := dbg.ReadBuildInfo()
 			if ok {

cmd/wallet.go

@@ -15,10 +15,10 @@ package cmd
 
 import (
 	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
 )
 
-var walletWallet string
-
 // walletCmd represents the wallet command
 var walletCmd = &cobra.Command{
 	Use:   "wallet",
@@ -30,6 +30,16 @@ func init() {
 	RootCmd.AddCommand(walletCmd)
 }
 
+var walletFlag *pflag.Flag
+
 func walletFlags(cmd *cobra.Command) {
-	cmd.Flags().StringVar(&walletWallet, "wallet", "", "Name of the wallet")
+	if walletFlag == nil {
+		cmd.Flags().String("wallet", "", "Name of the wallet")
+		walletFlag = cmd.Flags().Lookup("wallet")
+		if err := viper.BindPFlag("wallet", walletFlag); err != nil {
+			panic(err)
+		}
+	} else {
+		cmd.Flags().AddFlag(walletFlag)
+	}
 }

cmd/walletaccounts.go

@@ -20,7 +20,7 @@ import (
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	pb "github.com/wealdtech/eth2-signer-api/pb/v1"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 var walletAccountsCmd = &cobra.Command{
@@ -32,52 +32,35 @@ var walletAccountsCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the wallet holds any addresses, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(walletWallet != "", "wallet is required")
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+
+		assert(viper.GetString("wallet") != "", "wallet is required")
+
+		wallet, err := openWallet()
+		errCheck(err, "Failed to access wallet")
 
 		hasAccounts := false
-
-		if remote {
-			listerClient := pb.NewListerClient(remoteGRPCConn)
-			listAccountsReq := &pb.ListAccountsRequest{
-				Paths: []string{
-					walletWallet,
-				},
-			}
-			ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
-			defer cancel()
-			accountsResp, err := listerClient.ListAccounts(ctx, listAccountsReq)
-			errCheck(err, "Failed to access wallet")
-			assert(accountsResp.State == pb.ResponseState_SUCCEEDED, "Request to list wallet accounts failed")
-			walletPrefixLen := len(walletWallet) + 1
-			for _, account := range accountsResp.Accounts {
-				hasAccounts = true
-				if verbose {
-					fmt.Printf("%s\n", account.Name[walletPrefixLen:])
-					fmt.Printf("\tPublic key: %#048x\n", account.PublicKey)
-				} else if !quiet {
-					fmt.Printf("%s\n", account.Name[walletPrefixLen:])
+		for account := range wallet.Accounts(ctx) {
+			hasAccounts = true
+			outputIf(!quiet, account.Name())
+			if verbose {
+				fmt.Printf(" UUID: %v\n", account.ID())
+				pubKeyProvider, isProvider := account.(e2wtypes.AccountPublicKeyProvider)
+				if isProvider {
+					fmt.Printf(" Public key: %#x\n", pubKeyProvider.PublicKey().Marshal())
 				}
-			}
-		} else {
-			wallet, err := walletFromPath(walletWallet)
-			errCheck(err, "Failed to access wallet")
-
-			for account := range wallet.Accounts() {
-				hasAccounts = true
-				if verbose {
-					fmt.Printf("%s\n\tUUID:\t\t%s\n\tPublic key:\t0x%048x\n", account.Name(), account.ID(), account.PublicKey().Marshal())
-				} else if !quiet {
-					fmt.Printf("%s\n", account.Name())
+				compositePubKeyProvider, isProvider := account.(e2wtypes.AccountCompositePublicKeyProvider)
+				if isProvider {
+					fmt.Printf(" Composite public key: %#x\n", compositePubKeyProvider.CompositePublicKey().Marshal())
 				}
 			}
 		}
 
-		if quiet {
-			if hasAccounts {
-				os.Exit(_exitSuccess)
-			}
-			os.Exit(_exitFailure)
+		if hasAccounts {
+			os.Exit(_exitSuccess)
 		}
+		os.Exit(_exitFailure)
 	},
 }
 

cmd/walletcreate.go

@@ -14,14 +14,16 @@
 package cmd
 
 import (
+	"context"
 	"strings"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 	bip39 "github.com/tyler-smith/go-bip39"
-	wallet "github.com/wealdtech/go-eth2-wallet"
+	distributed "github.com/wealdtech/go-eth2-wallet-distributed"
 	keystorev4 "github.com/wealdtech/go-eth2-wallet-encryptor-keystorev4"
 	hd "github.com/wealdtech/go-eth2-wallet-hd/v2"
-	filesystem "github.com/wealdtech/go-eth2-wallet-store-filesystem"
+	nd "github.com/wealdtech/go-eth2-wallet-nd/v2"
 )
 
 var walletCreateType string
@@ -36,30 +38,24 @@ var walletCreateCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the wallet is created successfully, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(!remote, "wallet create not available with remote wallets")
-		assert(walletWallet != "", "--wallet is required")
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+
+		assert(viper.GetString("remote") == "", "wallet create not available with remote wallets")
+		assert(viper.GetString("wallet") != "", "--wallet is required")
 		assert(walletCreateType != "", "--type is required")
 
 		var err error
 		switch strings.ToLower(walletCreateType) {
 		case "non-deterministic", "nd":
-			_, err = wallet.CreateWallet(walletWallet, wallet.WithType("nd"))
+			assert(walletCreateSeed == "", "--seed is not allowed with non-deterministic wallets")
+			err = walletCreateND(ctx, viper.GetString("wallet"))
 		case "hierarchical deterministic", "hd":
-			assert(rootWalletPassphrase != "", "--walletpassphrase is required for hierarchical deterministic wallets")
-			store := filesystem.New()
-			encryptor := keystorev4.New()
-			if walletCreateSeed != "" {
-				// Creating wallet from a seed.
-				var seed []byte
-				seed, err = bip39.MnemonicToByteArray(walletCreateSeed)
-				errCheck(err, "Failed to decode seed")
-				// Strip checksum; last byte
-				seed = seed[:len(seed)-1]
-				assert(len(seed) == 32, "Seed must have 24 words")
-				_, err = hd.CreateWalletFromSeed(walletWallet, []byte(rootWalletPassphrase), store, encryptor, seed)
-			} else {
-				_, err = hd.CreateWallet(walletWallet, []byte(rootWalletPassphrase), store, encryptor)
-			}
+			assert(getWalletPassphrase() != "", "--walletpassphrase is required for hierarchical deterministic wallets")
+			err = walletCreateHD(ctx, viper.GetString("wallet"), getWalletPassphrase(), walletCreateSeed)
+		case "distributed":
+			assert(walletCreateSeed == "", "--seed is not allowed with distributed wallets")
+			err = walletCreateDistributed(ctx, viper.GetString("wallet"))
 		default:
 			die("unknown wallet type")
 		}
@@ -67,6 +63,37 @@ In quiet mode this will return 0 if the wallet is created successfully, otherwis
 	},
 }
 
+// walletCreateND creates a non-deterministic wallet.
+func walletCreateND(ctx context.Context, name string) error {
+	_, err := nd.CreateWallet(ctx, name, store, keystorev4.New())
+	return err
+}
+
+// walletCreateDistributed creates a distributed wallet.
+func walletCreateDistributed(ctx context.Context, name string) error {
+	_, err := distributed.CreateWallet(ctx, name, store, keystorev4.New())
+	return err
+}
+
+// walletCreateND creates a hierarchical-deterministic wallet.
+func walletCreateHD(ctx context.Context, name string, passphrase string, seedPhrase string) error {
+	encryptor := keystorev4.New()
+	if seedPhrase != "" {
+		// Create wallet from a user-supplied seed.
+		var seed []byte
+		seed, err := bip39.MnemonicToByteArray(seedPhrase)
+		errCheck(err, "Failed to decode seed")
+		// Strip checksum; last byte.
+		seed = seed[:len(seed)-1]
+		assert(len(seed) == 32, "Seed must have 24 words")
+		_, err = hd.CreateWalletFromSeed(ctx, name, []byte(passphrase), store, encryptor, seed)
+		return err
+	}
+	// Create wallet with a random seed.
+	_, err := hd.CreateWallet(ctx, name, []byte(passphrase), store, encryptor)
+	return err
+}
+
 func init() {
 	walletCmd.AddCommand(walletCreateCmd)
 	walletFlags(walletCreateCmd)

cmd/walletdelete.go

@@ -0,0 +1,56 @@
+// Copyright © 2020 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
+)
+
+var walletDeleteCmd = &cobra.Command{
+	Use:   "delete",
+	Short: "Delete a wallet",
+	Long: `Delete a wallet.  For example:
+
+    ethdo wallet delete --wallet=primary
+
+In quiet mode this will return 0 if the wallet has been deleted, otherwise 1.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		assert(viper.GetString("remote") == "", "wallet delete not available with remote wallets")
+		assert(viper.GetString("wallet") != "", "--wallet is required")
+
+		wallet, err := walletFromPath(viper.GetString("wallet"))
+		errCheck(err, "Failed to access wallet")
+
+		storeProvider, ok := wallet.(wtypes.StoreProvider)
+		assert(ok, "Cannot obtain store for the wallet")
+		store := storeProvider.Store()
+		storeLocationProvider, ok := store.(wtypes.StoreLocationProvider)
+		assert(ok, "Cannot obtain store location for the wallet")
+		walletLocation := filepath.Join(storeLocationProvider.Location(), wallet.ID().String())
+		err = os.RemoveAll(walletLocation)
+		errCheck(err, "Failed to delete wallet")
+
+		os.Exit(_exitSuccess)
+	},
+}
+
+func init() {
+	walletCmd.AddCommand(walletDeleteCmd)
+	walletFlags(walletDeleteCmd)
+}

cmd/walletexport.go

@@ -14,10 +14,12 @@
 package cmd
 
 import (
+	"context"
 	"fmt"
 	"os"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 	types "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
@@ -32,17 +34,20 @@ var walletExportCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the wallet is able to be exported, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(!remote, "wallet export not available with remote wallets")
-		assert(walletWallet != "", "--wallet is required")
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
+
+		assert(viper.GetString("remote") == "", "wallet export not available with remote wallets")
+		assert(viper.GetString("wallet") != "", "--wallet is required")
 		assert(walletExportPassphrase != "", "--exportpassphrase is required")
 
-		wallet, err := walletFromPath(walletWallet)
+		wallet, err := walletFromPath(viper.GetString("wallet"))
 		errCheck(err, "Failed to access wallet")
 
 		_, ok := wallet.(types.WalletExporter)
 		assert(ok, fmt.Sprintf("wallets of type %q do not allow exporting accounts", wallet.Type()))
 
-		exportData, err := wallet.(types.WalletExporter).Export([]byte(walletExportPassphrase))
+		exportData, err := wallet.(types.WalletExporter).Export(ctx, []byte(walletExportPassphrase))
 		errCheck(err, "Failed to export wallet")
 
 		outputIf(!quiet, fmt.Sprintf("0x%x", exportData))

cmd/walletimport.go

@@ -14,18 +14,23 @@
 package cmd
 
 import (
+	"encoding/json"
 	"fmt"
 	"io/ioutil"
 	"os"
 	"strings"
 
+	"github.com/google/uuid"
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 	"github.com/wealdtech/go-bytesutil"
-	wallet "github.com/wealdtech/go-eth2-wallet"
+	"github.com/wealdtech/go-ecodec"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
 )
 
 var walletImportData string
 var walletImportPassphrase string
+var walletImportVerify bool
 
 var walletImportCmd = &cobra.Command{
 	Use:   "import",
@@ -36,10 +41,10 @@ var walletImportCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the wallet is imported successfully, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(!remote, "wallet import not available with remote wallets")
+		assert(viper.GetString("remote") == "", "wallet import not available with remote wallets")
 		assert(walletImportData != "", "--importdata is required")
 		assert(walletImportPassphrase != "", "--importpassphrase is required")
-		assert(walletWallet == "", "--wallet is not allowed (the wallet will retain its name)")
+		assert(viper.GetString("wallet") == "", "--wallet is not allowed (the wallet will retain its name)")
 
 		if !strings.HasPrefix(walletImportData, "0x") {
 			outputIf(debug, fmt.Sprintf("Reading wallet import from file %s", walletImportData))
@@ -52,8 +57,42 @@ In quiet mode this will return 0 if the wallet is imported successfully, otherwi
 		importData, err := bytesutil.FromHexString(walletImportData)
 		errCheck(err, "Failed to decode wallet data")
 
-		_, err = wallet.ImportWallet(importData, []byte(walletImportPassphrase))
-		errCheck(err, "Failed to import wallet")
+		if walletImportVerify {
+			type accountInfo struct {
+				Name string `json:"name"`
+			}
+			type walletInfo struct {
+				ID   uuid.UUID `json:"uuid"`
+				Name string    `json:"name"`
+				Type string    `json:"type"`
+			}
+			type export struct {
+				Wallet   *walletInfo    `json:"wallet"`
+				Accounts []*accountInfo `json:"accounts"`
+			}
+
+			data, err := ecodec.Decrypt(importData, []byte(walletImportPassphrase))
+			errCheck(err, "Failed to decrypt wallet")
+			ext := &export{}
+			err = json.Unmarshal(data, ext)
+			errCheck(err, "Failed to read wallet")
+
+			outputIf(!quiet, fmt.Sprintf("Wallet name: %s", ext.Wallet.Name))
+			outputIf(!quiet, fmt.Sprintf("Wallet type: %s", ext.Wallet.Type))
+			outputIf(verbose, fmt.Sprintf("Wallet UUID: %s", ext.Wallet.ID))
+			if verbose {
+				fmt.Printf("Wallet accounts:\n")
+				for _, account := range ext.Accounts {
+					outputIf(verbose, fmt.Sprintf("  %s", account.Name))
+				}
+			} else {
+				outputIf(!quiet, fmt.Sprintf("Wallet accounts: %d", len(ext.Accounts)))
+			}
+
+		} else {
+			_, err = e2wallet.ImportWallet(importData, []byte(walletImportPassphrase))
+			errCheck(err, "Failed to import wallet")
+		}
 
 		os.Exit(_exitSuccess)
 	},
@@ -64,4 +103,5 @@ func init() {
 	walletFlags(walletImportCmd)
 	walletImportCmd.Flags().StringVar(&walletImportData, "importdata", "", "The data to import, or the name of a file to read")
 	walletImportCmd.Flags().StringVar(&walletImportPassphrase, "importpassphrase", "", "Passphrase protecting the data to import")
+	walletImportCmd.Flags().BoolVar(&walletImportVerify, "verify", false, "Verify the wallet can be imported, but do not import it")
 }

cmd/walletinfo.go

@@ -14,11 +14,13 @@
 package cmd
 
 import (
+	"context"
 	"fmt"
 	"os"
 	"path/filepath"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 	wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
@@ -31,10 +33,13 @@ var walletInfoCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the wallet exists, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(!remote, "wallet info not available with remote wallets")
-		assert(walletWallet != "", "Wallet is required")
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
 
-		wallet, err := walletFromPath(walletWallet)
+		assert(viper.GetString("remote") == "", "wallet info not available with remote wallets")
+		assert(viper.GetString("wallet") != "", "--wallet is required")
+
+		wallet, err := walletFromPath(viper.GetString("wallet"))
 		errCheck(err, "unknown wallet")
 
 		if quiet {
@@ -55,7 +60,7 @@ In quiet mode this will return 0 if the wallet exists, otherwise 1.`,
 
 		// Count the accounts.
 		accounts := 0
-		for range wallet.Accounts() {
+		for range wallet.Accounts(ctx) {
 			accounts++
 		}
 		fmt.Printf("Accounts: %d\n", accounts)

cmd/walletlist.go

@@ -18,7 +18,8 @@ import (
 	"os"
 
 	"github.com/spf13/cobra"
-	wallet "github.com/wealdtech/go-eth2-wallet"
+	"github.com/spf13/viper"
+	e2wallet "github.com/wealdtech/go-eth2-wallet"
 )
 
 var walletListCmd = &cobra.Command{
@@ -30,17 +31,14 @@ var walletListCmd = &cobra.Command{
 
 In quiet mode this will return 0 if any wallets are found, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(!remote, "wallet list not available with remote wallets")
+		assert(viper.GetString("remote") == "", "wallet list not available with remote wallets")
+		assert(viper.GetString("wallet") == "", "wallet list does not take a --wallet parameter")
 
 		walletsFound := false
-		if remote {
-			die("Remote wallets cannot be listed")
-		} else {
-			for w := range wallet.Wallets() {
-				walletsFound = true
-				outputIf(!quiet && !verbose, w.Name())
-				outputIf(verbose, fmt.Sprintf("%s\n\tUUID:\t\t%s", w.Name(), w.ID().String()))
-			}
+		for w := range e2wallet.Wallets() {
+			walletsFound = true
+			outputIf(!quiet && !verbose, w.Name())
+			outputIf(verbose, fmt.Sprintf("%s\n UUID: %s", w.Name(), w.ID().String()))
 		}
 
 		if !walletsFound {

cmd/walletseed.go

@@ -15,12 +15,14 @@ package cmd
 
 import (
 	"bytes"
+	"context"
 	"fmt"
 	"os"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 	bip39 "github.com/tyler-smith/go-bip39"
-	types "github.com/wealdtech/go-eth2-wallet-types/v2"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 var walletSeedCmd = &cobra.Command{
@@ -32,18 +34,25 @@ var walletSeedCmd = &cobra.Command{
 
 In quiet mode this will return 0 if the wallet is a hierarchical deterministic wallet, otherwise 1.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		assert(!remote, "wallet seed not available with remote wallets")
-		assert(walletWallet != "", "--wallet is required")
-		assert(rootWalletPassphrase != "", "--walletpassphrase is required")
+		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+		defer cancel()
 
-		wallet, err := walletFromPath(walletWallet)
+		assert(viper.GetString("remote") == "", "wallet seed not available with remote wallets")
+		assert(viper.GetString("wallet") != "", "--wallet is required")
+		assert(getWalletPassphrase() != "", "--walletpassphrase is required")
+
+		wallet, err := walletFromPath(viper.GetString("wallet"))
 		errCheck(err, "Failed to access wallet")
-		_, ok := wallet.(types.WalletKeyProvider)
+		_, ok := wallet.(e2wtypes.WalletKeyProvider)
 		assert(ok, fmt.Sprintf("wallets of type %q do not have a seed", wallet.Type()))
 
-		err = wallet.Unlock([]byte(rootWalletPassphrase))
-		errCheck(err, "Failed to unlock wallet")
-		seed, err := wallet.(types.WalletKeyProvider).Key()
+		locker, isLocker := wallet.(e2wtypes.WalletLocker)
+		if isLocker {
+			errCheck(locker.Unlock(ctx, []byte(getWalletPassphrase())), "Failed to unlock wallet")
+		}
+		keyProvider, isKeyProvider := wallet.(e2wtypes.WalletKeyProvider)
+		assert(isKeyProvider, "Wallet does not provide key")
+		seed, err := keyProvider.Key(ctx)
 		errCheck(err, "Failed to obtain wallet key")
 		outputIf(debug, fmt.Sprintf("Seed is %#x", seed))
 		seedStr, err := bip39.NewMnemonic(seed)

docs/howto.md

@@ -24,6 +24,16 @@ ethdo wallet create --wallet="My wallet"
 
 Additional options are available to decide the type of wallet and encryption.
 
+## Create an HD wallet from an existing seed
+
+HD wallets can be created from an existing seed by adding the `--seed` parameter to `ethdo wallet create`, for example:
+
+```sh
+ethdo wallet create --wallet="Recreated wallet" --type=hd --seed="tooth moon mad fun romance athlete envelope next mix divert tip top symbol resemble stock family melody desk sheriff drift bargain need jaguar method"
+```
+
+The seed for an existing HD wallet can be obtained with `ethdo wallet seed`.
+
 ## Back up a wallet
 
 A wallet can be backed up with the `ethdo wallet export` command.  This creates an encrypted backup of the wallet, for example:

docs/troubleshooting.md

@@ -13,3 +13,21 @@ sudo apt install build-essential libstdc++6
 
 and then try to install `ethdo` again.
 
+## ethdo not found after installing
+
+This is usually due to an incorrectly set path.  Go installs its binaries (such as `ethdo`) in a particular location.  The defaults are:
+
+  - Linux, Mac: `$HOME/go/bin`
+  - Windows: `%USERPROFILE%\go\bin`
+
+You must add these paths to be able to access `ethdo`.  To add the path on linux or OSX type:
+
+```sh
+export PATH=$PATH:$(go env GOPATH)/bin
+```
+
+and on Windows type:
+
+```sh
+setx /M path "%PATH%;%USERPROFILE%\go\bin"
+```

docs/usage.md

@@ -28,14 +28,25 @@ Spending: 0x85dfc6dcee4c9da36f6473ec02fda283d6c920c641fc8e3a76113c5c227d4aeeb100
 #### `create`
 
 `ethdo wallet create` creates a new wallet with the given parameters.  Options for creating a wallet include:
-  - `wallet`: the name of the wallet to create (defaults to "primary")
+  - `wallet`: the name of the wallet to create
   - `type`: the type of wallet to create.  This can be either "nd" for a non-deterministic wallet, where private keys are generated randomly, or "hd" for a hierarchical deterministic wallet, where private keys are generated from a seed and path as per [ERC-2333](https://github.com/CarlBeek/EIPs/blob/bls_path/EIPS/eip-2334.md) (defaults to "nd")
   - `walletpassphrase`: the passphrase for of the wallet.  This is required for hierarchical deterministic wallets, to protect the seed
+  - `seed`: for hierarchical deterministic wallets only, use a pre-defined 24-word [BIP-39 seed phrase](https://en.bitcoin.it/wiki/Seed_phrase) to create the wallet.  **Warning** The same seed can be imported in to multiple wallets, in which case they will generate the same keys.  Please ensure that only a single wallet is active with any single seed phrase
 
 ```sh
 $ ethdo wallet create --wallet="Personal wallet" --type="hd" --walletpassphrase="my wallet secret"
 ```
 
+#### `delete`
+`ethdo wallet delete` deletes a wallet.  Options for deleting a wallet include:
+  - `wallet`: the name of the wallet to delete
+
+```sh
+$ ethdo wallet delete --wallet="Old wallet"
+```
+
+**Warning** Deleting a wallet is permanent.  Only use this command if you really don't want the wallet, or you have securely backed the wallet up using `wallet export`.
+
 #### `export`
 
 `ethdo wallet export` exports the wallet and all of its accounts.  Options for exporting a wallet include:
@@ -58,6 +69,7 @@ $ ethdo wallet export --wallet="Personal wallet" --exportpassphrase="my export s
 `ethdo wallet import` imports a wallet and all of its accounts exported by `ethdo wallet export`.  Options for importing a wallet include:
   - `importdata`: the data exported by `ethdo wallet export`
   - `importpassphrase`: the passphrase that was provided to `ethdo wallet export` to encrypt the data
+  - `verify`: confirm information about the wallet import without importing it
 
 ```sh
 $ ethdo wallet import --importdata="0x01c7a27ad40d45b4ae5be5f..." --importpassphrase="my export secret"
@@ -185,8 +197,8 @@ Signature commands focus on generation and verification of data signatures.
   - `passphrase`: the passphrase for the account
 
 ```sh
-$ ethdo signature sign --data="0x08140077a94642919041503caf5cc1795b23ecf2" --account="Personal wallet/Operations" --passphrase="my account secret"
-0x89abe2e544ef3eafe397db036103b1d066ba86497f36ed4ab0264162eadc89c7744a2a08d43cec91df128660e70ecbbe11031b4c2e53682d2b91e67b886429bf8fac9bad8c7b63c5f231cc8d66b1377e06e27138b1ddc64b27c6e593e07ebb4b
+$ ethdo signature sign --data="0x08140077a94642919041503caf5cc1c89c7744a2a08d43cec91df1795b23ecf2" --account="Personal wallet/Operations" --passphrase="my account secret"
+0x87c83b31081744667406a11170c5585a11195621d0d3f796bd9006ac4cb5f61c10bf8c5b3014cd4f792b143a644cae100cb3155e8b00a961287bd9e7a5e18cb3b80930708bc9074d11ff47f1e8b9dd0b633e71bcea725fc3e550fdc259c3d130
 ```
 
 #### `signature verify`
@@ -198,11 +210,12 @@ $ ethdo signature sign --data="0x08140077a94642919041503caf5cc1795b23ecf2" --acc
   - `signer`: the public key of the account which signed the data (if not available as an account)
 
 ```sh
-$ ethdo signature verify --data="0x08140077a94642919041503caf5cc1795b23ecf2" --signature="0x89abe2e544ef3eafe397db036103b1d066ba86497f36ed4ab0264162eadc89c7744a2a08d43cec91df128660e70ecbbe11031b4c2e53682d2b91e67b886429bf8fac9bad8c7b63c5f231cc8d66b1377e06e27138b1ddc64b27c6e593e07ebb4b" --account="Personal wallet/Operations"
+$ ethdo signature verify --data="0x08140077a94642919041503caf5cc1c89c7744a2a08d43cec91df1795b23ecf2" --signature="0x87c83b31081744667406a11170c5585a11195621d0d3f796bd9006ac4cb5f61c10bf8c5b3014cd4f792b143a644cae100cb3155e8b00a961287bd9e7a5e18cb3b80930708bc9074d11ff47f1e8b9dd0b633e71bcea725fc3e550fdc259c3d130" --account="Personal wallet/Operations"
 Verified
-$ ethdo signature verify --data="0x08140077a94642919041503caf5cc1795b23ecf2" --signature="0x89abe2e544ef3eafe397db036103b1d066ba86497f36ed4ab0264162eadc89c7744a2a08d43cec91df128660e70ecbbe11031b4c2e53682d2b91e67b886429bf8fac9bad8c7b63c5f231cc8d66b1377e06e27138b1ddc64b27c6e593e07ebb4b" --account="Personal wallet/Auctions"
+$ ethdo signature verify --data="0x08140077a94642919041503caf5cc1c89c7744a2a08d43cec91df1795b23ecf2" --signature="0x87c83b31081744667406a11170c5585a11195621d0d3f796bd9006ac4cb5f61c10bf8c5b3014cd4f792b143a644cae100cb3155e8b00a961287bd9e7a5e18cb3b80930708bc9074d11ff47f1e8b9dd0b633e71bcea725fc3e550fdc259c3d130" --account="Personal wallet/Auctions"
 Not verified
-$ ethdo signature verify --data="0x08140077a94642919041503caf5cc1795b23ecf2" --signature="0x89abe2e544ef3eafe397db036103b1d066ba86497f36ed4ab0264162eadc89c7744a2a08d43cec91df128660e70ecbbe11031b4c2e53682d2b91e67b886429bf8fac9bad8c7b63c5f231cc8d66b1377e06e27138b1ddc64b27c6e593e07ebb4b" --signer="0x8e2f9e8cc29658ff37ecc30e95a0807579b224586c185d128cb7a7490784c1ad9b0ab93dbe604ab075b40079931e6670"
+$ ethdo signature verify --data="0x08140077a94642919041503caf5cc1c89c7744a2a08d43cec91df1795b23ecf2" --signature="0x89abe2e544ef3eafe397db036103b1d066ba86497f36ed4ab0264162eadc89c7744a2a08d43cec91df128660e70ecbbe11031b4c2e53682d2b91e67b886429bf8fac9bad8c7b63c5f231cc8d66b1377e06e27138b1ddc64b27c6e593e07ebb4b" --signer="0x8e2f9e8cc29658ff37ecc30e95a0807579b224586c185d128cb7a7490784c1ad9b0ab93dbe604ab075b40079931e6670"
+$ ethdo signature verify --data="0x08140077a94642919041503caf5cc1c89c7744a2a08d43cec91df1795b23ecf2" --signature="0x87c83b31081744667406a11170c5585a11195621d0d3f796bd9006ac4cb5f61c10bf8c5b3014cd4f792b143a644cae100cb3155e8b00a961287bd9e7a5e18cb3b80930708bc9074d11ff47f1e8b9dd0b633e71bcea725fc3e550fdc259c3d130" --signer="0xad1868210a0cff7aff22633c003c503d4c199c8dcca13bba5b3232fc784d39d3855936e94ce184c3ce27bf15d4347695"
 Verified
 ```
 
@@ -337,7 +350,13 @@ Validator commands focus on interaction with Ethereum 2 validators.
 
 #### `depositdata`
 
-`ethdo validator depositdata` generates the data required to deposit one or more Ethereum 2 validators.
+`ethdo validator depositdata` generates the data required to deposit one or more Ethereum 2 validators.  Options include:
+  - `withdrawalaccount` specify the account to be used for the withdrawal credentials (if withdrawalpubkey is not supplied)
+  - `withdrawalpubkey` specify the public key to be used for the withdrawal credentials (if withdrawalaccount is not supplied)
+  - `validatoraccount` specify the account to be used for the validator
+  - `depositvalue` specify the amount of the deposit
+  - `forkversion` specify the fork version for the deposit signature; this should not be included unless the deposit is being generated offline.  Note that supplying an incorrect value could result in the loss of your deposit, so only supply this value if you are sure you know what you are doing
+  - `raw` generate raw hex output that can be supplied as the data to an Ethereum 1 deposit transaction
 
 #### `exit`
 
@@ -345,6 +364,7 @@ Validator commands focus on interaction with Ethereum 2 validators.
   - `epoch` specify an epoch before which this exit is not valid
   - `json-output` generate JSON output rather than sending a transaction immediately
   - `json` use JSON input created by the `--json-output` option rather than generate data from scratch
+  - `forkversion` specify a specific fork version; default is to fetch it from the chain but this can be used when generating offline deposits
 
 ```sh
 $ ethdo validator exit --account=Validators/1 --passphrase="my validator secret"

go.mod

@@ -4,39 +4,42 @@ go 1.13
 
 require (
 	github.com/OneOfOne/xxhash v1.2.5 // indirect
-	github.com/ferranbt/fastssz v0.0.0-20200415074633-b062b680417b // indirect
 	github.com/fsnotify/fsnotify v1.4.9 // indirect
 	github.com/gogo/protobuf v1.3.1
-	github.com/golang/protobuf v1.4.0 // indirect
 	github.com/google/uuid v1.1.1
-	github.com/grpc-ecosystem/grpc-gateway v1.14.4 // indirect
+	github.com/grpc-ecosystem/grpc-gateway v1.14.6 // indirect
+	github.com/herumi/bls-eth-go-binary v0.0.0-20200719025738-3e30d132e8f6
 	github.com/mitchellh/go-homedir v1.1.0
-	github.com/mitchellh/mapstructure v1.3.0 // indirect
-	github.com/pelletier/go-toml v1.7.0 // indirect
+	github.com/mitchellh/mapstructure v1.3.2 // indirect
+	github.com/pelletier/go-toml v1.8.0 // indirect
 	github.com/pkg/errors v0.9.1
-	github.com/prysmaticlabs/ethereumapis v0.0.0-20200424214844-ba9042096e9f
-	github.com/prysmaticlabs/go-ssz v0.0.0-20200101200214-e24db4d9e963
+	github.com/prysmaticlabs/ethereumapis v0.0.0-20200619200018-174e3b90d786
+	github.com/prysmaticlabs/go-bitfield v0.0.0-20200618145306-2ae0807bef65
+	github.com/prysmaticlabs/go-ssz v0.0.0-20200612203617-6d5c9aa213ae
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
-	github.com/spf13/afero v1.2.2 // indirect
+	github.com/spf13/afero v1.3.0 // indirect
 	github.com/spf13/cast v1.3.1 // indirect
 	github.com/spf13/cobra v1.0.0
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/spf13/viper v1.6.3
+	github.com/spf13/pflag v1.0.5
+	github.com/spf13/viper v1.7.0
 	github.com/tyler-smith/go-bip39 v1.0.2
-	github.com/wealdtech/eth2-signer-api v1.3.0
+	github.com/wealdtech/eth2-signer-api v1.5.2
 	github.com/wealdtech/go-bytesutil v1.1.1
-	github.com/wealdtech/go-eth2-types/v2 v2.3.1
-	github.com/wealdtech/go-eth2-util v1.1.5
-	github.com/wealdtech/go-eth2-wallet v1.9.4
+	github.com/wealdtech/go-ecodec v1.1.0
+	github.com/wealdtech/go-eth2-types/v2 v2.5.0
+	github.com/wealdtech/go-eth2-util v1.5.0
+	github.com/wealdtech/go-eth2-wallet v1.11.0
+	github.com/wealdtech/go-eth2-wallet-dirk v1.0.0
+	github.com/wealdtech/go-eth2-wallet-distributed v1.0.1
 	github.com/wealdtech/go-eth2-wallet-encryptor-keystorev4 v1.0.0
-	github.com/wealdtech/go-eth2-wallet-hd/v2 v2.0.4
-	github.com/wealdtech/go-eth2-wallet-store-filesystem v1.7.3
-	github.com/wealdtech/go-eth2-wallet-types/v2 v2.0.2
+	github.com/wealdtech/go-eth2-wallet-hd/v2 v2.2.0
+	github.com/wealdtech/go-eth2-wallet-nd/v2 v2.2.0
+	github.com/wealdtech/go-eth2-wallet-store-filesystem v1.16.1
+	github.com/wealdtech/go-eth2-wallet-store-s3 v1.8.0
+	github.com/wealdtech/go-eth2-wallet-types/v2 v2.5.0
 	github.com/wealdtech/go-string2eth v1.1.0
-	golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0 // indirect
-	golang.org/x/text v0.3.2 // indirect
-	google.golang.org/genproto v0.0.0-20200428115010-c45acf45369a // indirect
-	google.golang.org/grpc v1.29.1
-	gopkg.in/ini.v1 v1.55.0 // indirect
+	golang.org/x/text v0.3.3 // indirect
+	google.golang.org/grpc v1.30.0
+	gopkg.in/ini.v1 v1.57.0 // indirect
 )

go.sum

@@ -1,18 +1,38 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
+cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
+cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
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@@ -255,54 +360,101 @@ github.com/wealdtech/go-string2eth v1.1.0/go.mod h1:RUzsLjJtbZaJ/3UKn9kY19a/vCCU
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+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=

grpc/beaconchain.go

@@ -20,17 +20,19 @@ import (
 
 	"github.com/gogo/protobuf/types"
 	"github.com/pkg/errors"
-	"github.com/spf13/viper"
-	"google.golang.org/grpc"
-
 	ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
-	wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
+	"github.com/spf13/viper"
+	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
+	"google.golang.org/grpc"
 )
 
 // FetchChainConfig fetches the chain configuration from the beacon node.
 // It tweaks the output to make it easier to work with by setting appropriate
 // types.
 func FetchChainConfig(conn *grpc.ClientConn) (map[string]interface{}, error) {
+	if conn == nil {
+		return nil, errors.New("no connection to beacon node")
+	}
 	beaconClient := ethpb.NewBeaconChainClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
@@ -72,15 +74,76 @@ func FetchChainConfig(conn *grpc.ClientConn) (map[string]interface{}, error) {
 	return results, nil
 }
 
-// FetchValidator fetches the validator definition from the beacon node.
-func FetchValidator(conn *grpc.ClientConn, account wtypes.Account) (*ethpb.Validator, error) {
+func FetchLatestFilledSlot(conn *grpc.ClientConn) (uint64, error) {
+	if conn == nil {
+		return 0, errors.New("no connection to beacon node")
+	}
 	beaconClient := ethpb.NewBeaconChainClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
 
+	chainHead, err := beaconClient.GetChainHead(ctx, &types.Empty{})
+	if err != nil {
+		return 0, errors.Wrap(err, "failed to obtain latest")
+	}
+
+	return chainHead.HeadSlot, nil
+}
+
+// FetchValidatorCommittees fetches the validator committees for a given epoch.
+func FetchValidatorCommittees(conn *grpc.ClientConn, epoch uint64) (map[uint64][][]uint64, error) {
+	if conn == nil {
+		return nil, errors.New("no connection to beacon node")
+	}
+	beaconClient := ethpb.NewBeaconChainClient(conn)
+	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+	defer cancel()
+
+	req := &ethpb.ListCommitteesRequest{
+		QueryFilter: &ethpb.ListCommitteesRequest_Epoch{
+			Epoch: epoch,
+		},
+	}
+	resp, err := beaconClient.ListBeaconCommittees(ctx, req)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to obtain committees")
+	}
+
+	res := make(map[uint64][][]uint64)
+	for slot, committees := range resp.Committees {
+		res[slot] = make([][]uint64, len(resp.Committees))
+		for i, committee := range committees.Committees {
+			res[slot][uint64(i)] = make([]uint64, len(committee.ValidatorIndices))
+			indices := make([]uint64, len(committee.ValidatorIndices))
+			copy(indices, committee.ValidatorIndices)
+			res[slot][uint64(i)] = indices
+		}
+	}
+
+	return res, nil
+}
+
+// FetchValidator fetches the validator definition from the beacon node.
+func FetchValidator(conn *grpc.ClientConn, account e2wtypes.Account) (*ethpb.Validator, error) {
+	if conn == nil {
+		return nil, errors.New("no connection to beacon node")
+	}
+	beaconClient := ethpb.NewBeaconChainClient(conn)
+	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+	defer cancel()
+
+	var pubKey []byte
+	if pubKeyProvider, ok := account.(e2wtypes.AccountCompositePublicKeyProvider); ok {
+		pubKey = pubKeyProvider.CompositePublicKey().Marshal()
+	} else if pubKeyProvider, ok := account.(e2wtypes.AccountPublicKeyProvider); ok {
+		pubKey = pubKeyProvider.PublicKey().Marshal()
+	} else {
+		return nil, errors.New("Unable to obtain public key")
+	}
+
 	req := &ethpb.GetValidatorRequest{
 		QueryFilter: &ethpb.GetValidatorRequest_PublicKey{
-			PublicKey: account.PublicKey().Marshal(),
+			PublicKey: pubKey,
 		},
 	}
 	return beaconClient.GetValidator(ctx, req)
@@ -88,6 +151,9 @@ func FetchValidator(conn *grpc.ClientConn, account wtypes.Account) (*ethpb.Valid
 
 // FetchValidatorByIndex fetches the validator definition from the beacon node.
 func FetchValidatorByIndex(conn *grpc.ClientConn, index uint64) (*ethpb.Validator, error) {
+	if conn == nil {
+		return nil, errors.New("no connection to beacon node")
+	}
 	beaconClient := ethpb.NewBeaconChainClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
@@ -100,8 +166,77 @@ func FetchValidatorByIndex(conn *grpc.ClientConn, index uint64) (*ethpb.Validato
 	return beaconClient.GetValidator(ctx, req)
 }
 
+// FetchValidatorBalance fetches the validator balance from the beacon node.
+func FetchValidatorBalance(conn *grpc.ClientConn, account e2wtypes.Account) (uint64, error) {
+	if conn == nil {
+		return 0, errors.New("no connection to beacon node")
+	}
+	beaconClient := ethpb.NewBeaconChainClient(conn)
+	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+	defer cancel()
+
+	var pubKey []byte
+	if pubKeyProvider, ok := account.(e2wtypes.AccountCompositePublicKeyProvider); ok {
+		pubKey = pubKeyProvider.CompositePublicKey().Marshal()
+	} else if pubKeyProvider, ok := account.(e2wtypes.AccountPublicKeyProvider); ok {
+		pubKey = pubKeyProvider.PublicKey().Marshal()
+	} else {
+		return 0, errors.New("Unable to obtain public key")
+	}
+
+	res, err := beaconClient.ListValidatorBalances(ctx, &ethpb.ListValidatorBalancesRequest{
+		PublicKeys: [][]byte{pubKey},
+	})
+	if err != nil {
+		return 0, err
+	}
+	if len(res.Balances) == 0 {
+		return 0, errors.New("unknown validator")
+	}
+	return res.Balances[0].Balance, nil
+}
+
+// FetchValidatorPerformance fetches the validator performance from the beacon node.
+func FetchValidatorPerformance(conn *grpc.ClientConn, account e2wtypes.Account) (bool, bool, bool, uint64, int64, error) {
+	if conn == nil {
+		return false, false, false, 0, 0, errors.New("no connection to beacon node")
+	}
+	beaconClient := ethpb.NewBeaconChainClient(conn)
+	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+	defer cancel()
+
+	var pubKey []byte
+	if pubKeyProvider, ok := account.(e2wtypes.AccountCompositePublicKeyProvider); ok {
+		pubKey = pubKeyProvider.CompositePublicKey().Marshal()
+	} else if pubKeyProvider, ok := account.(e2wtypes.AccountPublicKeyProvider); ok {
+		pubKey = pubKeyProvider.PublicKey().Marshal()
+	} else {
+		return false, false, false, 0, 0, errors.New("Unable to obtain public key")
+	}
+
+	req := &ethpb.ValidatorPerformanceRequest{
+		PublicKeys: [][]byte{pubKey},
+	}
+	res, err := beaconClient.GetValidatorPerformance(ctx, req)
+	if err != nil {
+		return false, false, false, 0, 0, err
+	}
+	if len(res.InclusionDistances) == 0 {
+		return false, false, false, 0, 0, errors.New("unknown validator")
+	}
+	return res.CorrectlyVotedHead[0],
+		res.CorrectlyVotedSource[0],
+		res.CorrectlyVotedTarget[0],
+		res.InclusionDistances[0],
+		int64(res.BalancesAfterEpochTransition[0]) - int64(res.BalancesBeforeEpochTransition[0]),
+		err
+}
+
 // FetchValidatorInfo fetches current validator info from the beacon node.
-func FetchValidatorInfo(conn *grpc.ClientConn, account wtypes.Account) (*ethpb.ValidatorInfo, error) {
+func FetchValidatorInfo(conn *grpc.ClientConn, account e2wtypes.Account) (*ethpb.ValidatorInfo, error) {
+	if conn == nil {
+		return nil, errors.New("no connection to beacon node")
+	}
 	beaconClient := ethpb.NewBeaconChainClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
@@ -111,9 +246,18 @@ func FetchValidatorInfo(conn *grpc.ClientConn, account wtypes.Account) (*ethpb.V
 		return nil, errors.Wrap(err, "failed to contact beacon node")
 	}
 
+	var pubKey []byte
+	if pubKeyProvider, ok := account.(e2wtypes.AccountCompositePublicKeyProvider); ok {
+		pubKey = pubKeyProvider.CompositePublicKey().Marshal()
+	} else if pubKeyProvider, ok := account.(e2wtypes.AccountPublicKeyProvider); ok {
+		pubKey = pubKeyProvider.PublicKey().Marshal()
+	} else {
+		return nil, errors.New("Unable to obtain public key")
+	}
+
 	changeSet := &ethpb.ValidatorChangeSet{
 		Action:     ethpb.SetAction_SET_VALIDATOR_KEYS,
-		PublicKeys: [][]byte{account.PublicKey().Marshal()},
+		PublicKeys: [][]byte{pubKey},
 	}
 	err = stream.Send(changeSet)
 	if err != nil {
@@ -124,6 +268,9 @@ func FetchValidatorInfo(conn *grpc.ClientConn, account wtypes.Account) (*ethpb.V
 
 // FetchChainInfo fetches current chain info from the beacon node.
 func FetchChainInfo(conn *grpc.ClientConn) (*ethpb.ChainHead, error) {
+	if conn == nil {
+		return nil, errors.New("no connection to beacon node")
+	}
 	beaconClient := ethpb.NewBeaconChainClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
@@ -133,6 +280,9 @@ func FetchChainInfo(conn *grpc.ClientConn) (*ethpb.ChainHead, error) {
 
 // FetchBlock fetches a block at a given slot from the beacon node.
 func FetchBlock(conn *grpc.ClientConn, slot uint64) (*ethpb.SignedBeaconBlock, error) {
+	if conn == nil {
+		return nil, errors.New("no connection to beacon node")
+	}
 	beaconClient := ethpb.NewBeaconChainClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
@@ -149,3 +299,17 @@ func FetchBlock(conn *grpc.ClientConn, slot uint64) (*ethpb.SignedBeaconBlock, e
 	}
 	return resp.BlockContainers[0].Block, nil
 }
+
+func StreamBlocks(conn *grpc.ClientConn) (ethpb.BeaconChain_StreamBlocksClient, error) {
+	if conn == nil {
+		return nil, errors.New("no connection to beacon node")
+	}
+
+	beaconClient := ethpb.NewBeaconChainClient(conn)
+	stream, err := beaconClient.StreamBlocks(context.Background(), &types.Empty{})
+	if err != nil {
+		return nil, err
+	}
+
+	return stream, nil
+}

grpc/beaconnode.go

@@ -16,6 +16,7 @@ package grpc
 import (
 	"context"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/viper"
 	"google.golang.org/grpc"
 
@@ -25,13 +26,25 @@ import (
 
 // FetchValidatorIndex fetches the index of a validator.
 func FetchValidatorIndex(conn *grpc.ClientConn, account wtypes.Account) (uint64, error) {
+	if conn == nil {
+		return 0, errors.New("no connection to beacon node")
+	}
 	validatorClient := ethpb.NewBeaconNodeValidatorClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
 
+	var pubKey []byte
+	if pubKeyProvider, ok := account.(wtypes.AccountCompositePublicKeyProvider); ok {
+		pubKey = pubKeyProvider.CompositePublicKey().Marshal()
+	} else if pubKeyProvider, ok := account.(wtypes.AccountPublicKeyProvider); ok {
+		pubKey = pubKeyProvider.PublicKey().Marshal()
+	} else {
+		return 0, errors.New("Unable to obtain public key")
+	}
+
 	// Fetch the account.
 	req := &ethpb.ValidatorIndexRequest{
-		PublicKey: account.PublicKey().Marshal(),
+		PublicKey: pubKey,
 	}
 	resp, err := validatorClient.ValidatorIndex(ctx, req)
 	if err != nil {
@@ -43,17 +56,29 @@ func FetchValidatorIndex(conn *grpc.ClientConn, account wtypes.Account) (uint64,
 
 // FetchValidatorState fetches the state of a validator.
 func FetchValidatorState(conn *grpc.ClientConn, account wtypes.Account) (ethpb.ValidatorStatus, error) {
+	if conn == nil {
+		return ethpb.ValidatorStatus_UNKNOWN_STATUS, errors.New("no connection to beacon node")
+	}
 	validatorClient := ethpb.NewBeaconNodeValidatorClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
 
+	var pubKey []byte
+	if pubKeyProvider, ok := account.(wtypes.AccountCompositePublicKeyProvider); ok {
+		pubKey = pubKeyProvider.CompositePublicKey().Marshal()
+	} else if pubKeyProvider, ok := account.(wtypes.AccountPublicKeyProvider); ok {
+		pubKey = pubKeyProvider.PublicKey().Marshal()
+	} else {
+		return ethpb.ValidatorStatus_UNKNOWN_STATUS, errors.New("Unable to obtain public key")
+	}
+
 	// Fetch the account.
 	req := &ethpb.ValidatorStatusRequest{
-		PublicKey: account.PublicKey().Marshal(),
+		PublicKey: pubKey,
 	}
 	resp, err := validatorClient.ValidatorStatus(ctx, req)
 	if err != nil {
-		return 0, err
+		return ethpb.ValidatorStatus_UNKNOWN_STATUS, err
 	}
 
 	return resp.Status, nil

grpc/node.go

@@ -18,14 +18,18 @@ import (
 	"time"
 
 	"github.com/gogo/protobuf/types"
+	"github.com/pkg/errors"
 	"github.com/spf13/viper"
 	"google.golang.org/grpc"
 
 	ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
 )
 
-// FetchGenesis fetches the genesis time.
-func FetchGenesis(conn *grpc.ClientConn) (time.Time, error) {
+// FetchGenesisTime fetches the genesis time.
+func FetchGenesisTime(conn *grpc.ClientConn) (time.Time, error) {
+	if conn == nil {
+		return time.Now(), errors.New("no connection to beacon node")
+	}
 	client := ethpb.NewNodeClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
@@ -36,8 +40,26 @@ func FetchGenesis(conn *grpc.ClientConn) (time.Time, error) {
 	return time.Unix(res.GetGenesisTime().Seconds, 0), nil
 }
 
+// FetchGenesisValidatorsRoot fetches the genesis validators root.
+func FetchGenesisValidatorsRoot(conn *grpc.ClientConn) ([]byte, error) {
+	if conn == nil {
+		return nil, errors.New("no connection to beacon node")
+	}
+	client := ethpb.NewNodeClient(conn)
+	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
+	defer cancel()
+	res, err := client.GetGenesis(ctx, &types.Empty{})
+	if err != nil {
+		return nil, err
+	}
+	return res.GetGenesisValidatorsRoot(), nil
+}
+
 // FetchVersion fetches the version and metadata from the server.
 func FetchVersion(conn *grpc.ClientConn) (string, string, error) {
+	if conn == nil {
+		return "", "", errors.New("no connection to beacon node")
+	}
 	client := ethpb.NewNodeClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()
@@ -50,6 +72,9 @@ func FetchVersion(conn *grpc.ClientConn) (string, string, error) {
 
 // FetchSyncing returns true if the node is syncing, otherwise false.
 func FetchSyncing(conn *grpc.ClientConn) (bool, error) {
+	if conn == nil {
+		return false, errors.New("no connection to beacon node")
+	}
 	client := ethpb.NewNodeClient(conn)
 	ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 	defer cancel()

util/bls.go

@@ -0,0 +1,31 @@
+// Copyright © 2020 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package util
+
+import (
+	"encoding/binary"
+
+	"github.com/herumi/bls-eth-go-binary/bls"
+)
+
+// BLSID turns a uint64 in to a BLS identifier.
+func BLSID(id uint64) *bls.ID {
+	var res bls.ID
+	buf := [8]byte{}
+	binary.LittleEndian.PutUint64(buf[:], id)
+	if err := res.SetLittleEndian(buf[:]); err != nil {
+		panic(err)
+	}
+	return &res
+}