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different functions for identity commitment generation

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This commit is contained in:
Andrija Novakovic
2021-10-20 07:47:34 +02:00
parent 65360e4659
commit 3279abf16f
6 changed files with 24 additions and 19 deletions
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2
packages/identity/package.json
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@@ -1,6 +1,6 @@
{
"name": "@libsem/identity",
"version": "1.0.6",
"version": "1.0.7",
"description": "Library for managing identites for Semaphore and Rln protocols",
"main": "dist/index.node.js",
"types": "dist/types/index.d.ts",

14
packages/identity/src/identity.ts
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@@ -14,7 +14,7 @@ class ZkIdentity {
* @param metadata additional data needed to create identity for given strategy
* @returns Identity
*/
genIdentity(strategy = "random", metadata: any = {}): Identity {
genIdentity(strategy: "random" | "signedMessage" = "random", metadata: any = {}): Identity {
if (strategy === "random") return genRandomIdentity();
else if (strategy === "signedMessage") return genIdentityFromSignedMessage(metadata);
@@ -48,11 +48,21 @@ class ZkIdentity {
* @param secret identity secret
* @returns identity commitment
*/
genIdentityCommitment(secret: bigint[]): bigint {
genIdentityCommitmentFromSecret(secret: bigint[]): bigint {
const secretHash = poseidonHash(secret);
return poseidonHash([secretHash]);
}
/**
* Generate commitment from identity
* @param identity identity
* @returns identity commitment
*/
genIdentityCommitment(identity: Identity): bigint {
const secretHash = poseidonHash([identity.identityNullifier, identity.identityTrapdoor]);
return poseidonHash([secretHash]);
}
/**
* Serializes identity
* @param identity to serialize

9
packages/identity/tests/identity.test.ts
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@@ -23,17 +23,16 @@ describe("Semaphore identity", () => {
expect(typeof identitySecret).toEqual("object")
})
it("Should generate identity commitment from identity secret", async () => {
it("Should generate identity commitment from identity", async () => {
const identity: Identity = ZkIdentity.genIdentity();
const identitySecret: bigint[] = ZkIdentity.genSecretFromIdentity(identity);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identitySecret);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identity);
expect(typeof identityCommitment).toEqual("bigint")
})
it("Should generate identity commitment from random secret", async () => {
const secretParts = 5;
const identitySecret: bigint[] = ZkIdentity.genRandomSecret(secretParts);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identitySecret);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitmentFromSecret(identitySecret);
expect(typeof identityCommitment).toEqual("bigint")
})
@@ -49,4 +48,4 @@ describe("Semaphore identity", () => {
expect(unserialized).toStrictEqual(identity)
})
})
})
})

2
packages/protocols/package.json
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@@ -1,6 +1,6 @@
{
"name": "@libsem/protocols",
"version": "1.0.7",
"version": "1.0.8",
"description": "Client library for generating and verifying Semaphore & Rln ZK proofs",
"main": "dist/index.node.js",
"types": "dist/types/index.d.ts",

7
packages/protocols/tests/rln.test.ts
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@@ -12,8 +12,7 @@ beforeAll(() => {
for (let i=0; i<leafIndex;i++) {
const tmpIdentity = ZkIdentity.genIdentity();
const tmpIdentitySecret = ZkIdentity.genSecretFromIdentity(tmpIdentity);
const tmpCommitment: any = ZkIdentity.genIdentityCommitment(tmpIdentitySecret);
const tmpCommitment: any = ZkIdentity.genIdentityCommitment(tmpIdentity);
identityCommitments.push(tmpCommitment);
}
})
@@ -23,7 +22,7 @@ describe("Rln", () => {
it("Generate rln witness", () => {
const identity: Identity = ZkIdentity.genIdentity();
const identitySecret: bigint[] = ZkIdentity.genSecretFromIdentity(identity);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identitySecret);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identity);
const secretHash: bigint = poseidonHash(identitySecret);
const commitments: Array<bigint> = Object.assign([], identityCommitments);
@@ -46,7 +45,7 @@ describe("Rln", () => {
const identitySecret: bigint[] = ZkIdentity.genSecretFromIdentity(identity);
const secretHash: bigint = poseidonHash(identitySecret);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identitySecret);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identity);
const commitments: Array<bigint> = Object.assign([], identityCommitments);
commitments.push(identityCommitment);

9
packages/protocols/tests/semaphore.test.ts
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@@ -15,8 +15,7 @@ beforeAll(() => {
for (let i=0; i<leafIndex;i++) {
const tmpIdentity = ZkIdentity.genIdentity();
const tmpIdentitySecret: bigint[] = ZkIdentity.genSecretFromIdentity(tmpIdentity);
const tmpCommitment: bigint = ZkIdentity.genIdentityCommitment(tmpIdentitySecret);
const tmpCommitment: bigint = ZkIdentity.genIdentityCommitment(tmpIdentity);
identityCommitments.push(tmpCommitment);
}
})
@@ -27,8 +26,7 @@ describe("Semaphore", () => {
const identity: Identity = ZkIdentity.genIdentity();
const externalNullifier: string = genExternalNullifier("voting_1");
const signal = '0x111';
const identitySecret: bigint[] = ZkIdentity.genSecretFromIdentity(identity);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identitySecret);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identity);
const commitments: Array<bigint> = Object.assign([], identityCommitments);
commitments.push(identityCommitment);
@@ -46,8 +44,7 @@ describe("Semaphore", () => {
const externalNullifier: string = genExternalNullifier("voting_1");
const signal = '0x111';
const nullifierHash: bigint = Semaphore.genNullifierHash(externalNullifier, identity.identityNullifier, 20);
const identitySecret: bigint[] = ZkIdentity.genSecretFromIdentity(identity);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identitySecret);
const identityCommitment: bigint = ZkIdentity.genIdentityCommitment(identity);
const commitments: Array<bigint> = Object.assign([], identityCommitments);
commitments.push(identityCommitment);