Interaction with web3 applications can be slow, costly, and risky. Quill leverages BLS signature aggregation on Ethereum layer 2 solutions, easily bringing fast and low-cost Ethereum transactions to your browser.

Additional Benefits

send multiple txs as one to ensure atomic execution
pay even less gas by reducing on chain footprint of signatures

How to use it

install the plugin
create a contract wallet (uses bls keys)
transfer L2 erc20 tokens
use contract wallet with L2 dapps (coming soon)

Getting started

To run the dev server:

yarn run dev:chrome # or dev:firefox etc, see scripts in package.json

Reset the extension. This is useful for getting the wallet to a clean slate in development. You can achieve this in your browser by either:

Removing the extension and then re-adding via "Load unpacked".
Or run debug.reset(); twice in the background page console.

Feature Summary

MVP (uses Optimism)

Chrome/Brave plugin
Secure storage of BLS private-keys
Sign tx data:
- wallet creation
- erc20 transfers
Submit txs to hosted aggregator
Basic feedback from aggregator for UI updates (tx received, tx mined. tx dropped?)

Upcoming

Secure storage of EDDSA and ECDSA keys
Social recovery
- nominate guardians
- recover contract wallet
Receive tx data from existing L2 dapps on networks:
- Optimism
- Arbitrum (coming soon)
- ...
Receive and review multiple txs from dapps
- sign all and submit to aggregator
Wallet feedback (from L2 sequencer)
- listening to wallet events
- wallet tx history

Future

Sign and submit multiple transactions as one (to L2 sequencer)
- local signature aggregation
Review and sign typed data (712)

Requirements

Secure storage

Safe storage options for extension

BLS components

signing transactions
signature verification
signature aggregation

Servers

Aggregator
Future: L2 Sequencer

User Interface Base

Extension for Chrome/Brave and Firefox
- Web Extensions? combined extensions standard
storyboard
Common:
- Network name (hover chainId)
- Current BLS Key (option to create)
- Associated contract wallet address if any (option to create)
- contract wallet balance (L2 ETH token)
- Action to Transfer (starts tx data)
tx edit section:
- Method name "transfer" (show methodId)
- Params as text fields
  - address with checks (length, checksum)
  - balance as decimal (*10^18)
signed tx section:
- signed txs per row
  - method name - nonce - (send)
- (aggregate) - (send all)