update tests

Author: daveroga

src/identity/identity-wallet.ts

@@ -7,15 +7,13 @@ import {
   ClaimOptions,
   DID,
   DidMethod,
-  genesisFromEthAddress,
   getUnixTimestamp,
   Id,
   NetworkId,
   SchemaHash
 } from '@iden3/js-iden3-core';
 import { poseidon, PublicKey, sha256, Signature, Hex, getRandomBytes } from '@iden3/js-crypto';
 import { Hash, hashElems, ZERO_HASH } from '@iden3/js-merkletree';
-
 import { generateProfileDID, subjectPositionIndex } from './common';
 import * as uuid from 'uuid';
 import { JSONSchema, JsonSchemaValidator, cacheLoader } from '../schema-processor';
@@ -44,15 +42,14 @@ import {
   TreesModel
 } from '../credentials';
 import { TreeState } from '../circuits';
-import { byteEncoder } from '../utils';
+import { buildDIDFromEthPubKey, byteEncoder } from '../utils';
 import { Options } from '@iden3/js-jsonld-merklization';
 import { TransactionReceipt } from 'ethers';
 import {
   CredentialStatusPublisherRegistry,
   Iden3SmtRhsCredentialStatusPublisher
 } from '../credentials/status/credential-status-publisher';
 import { ProofService } from '../proof';
-import { keccak256 } from 'js-sha3';
 
 /**
  * DID creation options
@@ -636,16 +633,7 @@ export class IdentityWallet implements IIdentityWallet {
 
     const keyIdEth = await this._kms.createKeyFromSeed(KmsKeyType.Secp256k1, opts.seed);
     const pubKeyHexEth = (await this._kms.publicKey(keyIdEth)).slice(2); // 04 + x + y (uncompressed key)
-    // Use Keccak-256 hash function to get public key hash
-    const hashOfPublicKey = keccak256(Buffer.from(pubKeyHexEth, 'hex'));
-    // Convert hash to buffer
-    const ethAddressBuffer = Buffer.from(hashOfPublicKey, 'hex');
-    // Ethereum Address is '0x' concatenated with last 20 bytes
-    // of the public key hash
-    const ethAddr = ethAddressBuffer.slice(-20);
-    const genesis = genesisFromEthAddress(ethAddr);
-    const identifier = new Id(didType, genesis);
-    const did = DID.parseFromId(identifier);
+    const did = buildDIDFromEthPubKey(didType, pubKeyHexEth);
 
     await this._storage.mt.createIdentityMerkleTrees(did.string());
 

src/storage/blockchain/state.ts

@@ -1,7 +1,7 @@
 import { RootInfo, StateProof } from './../entities/state';
 import { ZKProof } from '@iden3/js-jwz';
 import { IStateStorage, UserStateTransitionInfo } from '../interfaces/state';
-import { Contract, ContractTransaction, JsonRpcProvider, Signer, TransactionRequest } from 'ethers';
+import { Contract, JsonRpcProvider, Signer, TransactionRequest } from 'ethers';
 import { StateInfo } from '../entities/state';
 import { StateTransitionPubSignals } from '../../circuits';
 import { byteEncoder } from '../../utils';
@@ -165,7 +165,8 @@ export class EthStateStorage implements IStateStorage {
     signer: Signer,
     userStateTranstionInfo: UserStateTransitionInfo
   ): Promise<string> {
-    const { userId, oldUserState, newUserState, isOldStateGenesis, methodId, methodParams } = userStateTranstionInfo;
+    const { userId, oldUserState, newUserState, isOldStateGenesis, methodId, methodParams } =
+      userStateTranstionInfo;
     const { stateContract, provider } = this.getStateContractAndProviderForId(userId.bigInt());
     const contract = stateContract.connect(signer) as Contract;
     const feeData = await provider.getFeeData();

src/utils/did-helper.ts

@@ -2,6 +2,7 @@ import { Hex } from '@iden3/js-crypto';
 import { Id, buildDIDType, genesisFromEthAddress, DID } from '@iden3/js-iden3-core';
 import { Hash } from '@iden3/js-merkletree';
 import { DIDResolutionResult, VerificationMethod } from 'did-resolver';
+import { keccak256 } from 'js-sha3';
 
 /**
  * Checks if state is genesis state
@@ -83,3 +84,16 @@ export const resolveDIDDocumentAuth = async (
     (i) => i.type === 'Iden3StateInfo2023'
   );
 };
+
+export const buildDIDFromEthPubKey = (didType: Uint8Array, pubKeyEth: string): DID => {
+  // Use Keccak-256 hash function to get public key hash
+  const hashOfPublicKey = keccak256(Buffer.from(pubKeyEth, 'hex'));
+  // Convert hash to buffer
+  const ethAddressBuffer = Buffer.from(hashOfPublicKey, 'hex');
+  // Ethereum Address is '0x' concatenated with last 20 bytes
+  // of the public key hash
+  const ethAddr = ethAddressBuffer.slice(-20);
+  const genesis = genesisFromEthAddress(ethAddr);
+  const identifier = new Id(didType, genesis);
+  return DID.parseFromId(identifier);
+};

tests/utils/utils.test.ts

@@ -1,5 +1,6 @@
 import { expect } from 'chai';
-import { JSONObject, mergeObjects } from '../../src';
+import { buildDIDFromEthPubKey, JSONObject, mergeObjects } from '../../src';
+import { Blockchain, buildDIDType, DidMethod, NetworkId } from '@iden3/js-iden3-core';
 
 describe('merge credential subjects to create query', () => {
   it('should merge two valid JSONObjects correctly', () => {
@@ -149,3 +150,16 @@ describe('merge credential subjects to create query', () => {
     }
   });
 });
+
+describe('build did from ethereum public key', () => {
+  it.only('should build did from ethereum public key correctly', async () => {
+    const pubKeyHexEth =
+      '8318535b54105d4a7aae60c08fc45f9687181b4fdfc625bd1a753fa7397fed753547f11ca8696646f2f3acb08e31016afac23e630c5d11f59f61fef57b0d2aa5';
+    const didType = buildDIDType(DidMethod.Iden3, Blockchain.Polygon, NetworkId.Amoy);
+    const did = buildDIDFromEthPubKey(didType, pubKeyHexEth);
+
+    expect(did.string()).to.equal(
+      'did:iden3:polygon:amoy:x6x5sor7zpycB7z7Q9348dXJxZ9s5b9AgmPeSccZz'
+    );
+  });
+});