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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| const path = require("path") | ||
| const assert = require('assert') | ||
| const wasm_tester = require("circom_tester").wasm | ||
| const { buildEddsa, buildPoseidonReference } = require('circomlibjs') | ||
| const { BigNumber } = require('hardhat').ethers | ||
|
|
||
| const { | ||
| randomBN, | ||
| } = require('../../src/utils') | ||
|
|
||
| describe("Issue circuit", function () { | ||
| this.timeout(25000) | ||
| let circuit, eddsa, poseidon | ||
| let secret, credentialRoot, privateKey | ||
|
|
||
| function poseidonHash(items) { | ||
| return poseidon.F.toString(poseidon(items.map((x) => BigNumber.from(x).toBigInt()))) | ||
| } | ||
|
|
||
| function poseidonHash2(a, b) { | ||
| return poseidonHash([a, b]) | ||
| } | ||
|
|
||
| function createCredential(secret, publicKey, root) { | ||
| let credential = { secret, root } | ||
| credential.subject = poseidonHash2(eddsa.F.toObject(publicKey[0]), eddsa.F.toObject(publicKey[1])) | ||
| credential.commitment = poseidonHash([credential.root, credential.subject, credential.secret]) | ||
| credential.nullifierHash = poseidonHash([credential.root]) | ||
| return credential | ||
| } | ||
|
|
||
| before(async () => { | ||
| circuit = await wasm_tester("./circuits/issue.circom") | ||
| eddsa = await buildEddsa() | ||
| poseidon = await buildPoseidonReference() | ||
| secret = randomBN().toString() | ||
| credentialRoot = randomBN().toString() | ||
| privateKey = randomBN().toString() | ||
| }) | ||
|
|
||
| it("should successfully generate a valid issuance proof", async () => { | ||
| const publicKey = eddsa.prv2pub(privateKey) | ||
| const credential = createCredential(secret, publicKey, credentialRoot) | ||
| const signature = eddsa.signPoseidon(privateKey, eddsa.F.e(credential.commitment)) | ||
|
|
||
| const w = await circuit.calculateWitness({ | ||
| commitment: credential.commitment, | ||
| credentialRoot: credential.root, | ||
| publicKey: [ | ||
| eddsa.F.toObject(publicKey[0]), | ||
| eddsa.F.toObject(publicKey[1]) | ||
| ], | ||
| secret: credential.secret, | ||
| signature: [ | ||
| eddsa.F.toObject(signature.R8[0]), | ||
| eddsa.F.toObject(signature.R8[1]), | ||
| signature.S | ||
| ], | ||
| }, true) | ||
|
|
||
| await circuit.checkConstraints(w) | ||
| }) | ||
|
|
||
| it("should not generate a valid proof from a invalid signer", async () => { | ||
| const publicKey = eddsa.prv2pub(privateKey) | ||
| const credential = createCredential(secret, publicKey, credentialRoot) | ||
| const signature = eddsa.signPoseidon(randomBN().toString(), eddsa.F.e(credential.commitment)) | ||
|
|
||
| const w = circuit.calculateWitness({ | ||
| commitment: credential.commitment, | ||
| credentialRoot: credential.root, | ||
| publicKey: [ | ||
| eddsa.F.toObject(publicKey[0]), | ||
| eddsa.F.toObject(publicKey[1]) | ||
| ], | ||
| secret: credential.secret, | ||
| signature: [ | ||
| eddsa.F.toObject(signature.R8[0]), | ||
| eddsa.F.toObject(signature.R8[1]), | ||
| signature.S | ||
| ], | ||
| }, true) | ||
|
|
||
| await assert.rejects(async () => { await w }, /Error: Assert Failed/) | ||
| }) | ||
|
|
||
| it("should not accept trivial commitments", async () => { | ||
| const publicKey = eddsa.prv2pub(privateKey) | ||
| const credential = createCredential(secret, publicKey, credentialRoot) | ||
| const signature = eddsa.signPoseidon(publicKey, eddsa.F.e(credential.commitment)) | ||
|
|
||
| const w = circuit.calculateWitness({ | ||
| commitment: 0, | ||
| credentialRoot: credential.root, | ||
| publicKey: [ | ||
| eddsa.F.toObject(publicKey[0]), | ||
| eddsa.F.toObject(publicKey[1]) | ||
| ], | ||
| secret: credential.secret, | ||
| signature: [ | ||
| eddsa.F.toObject(signature.R8[0]), | ||
| eddsa.F.toObject(signature.R8[1]), | ||
| signature.S | ||
| ], | ||
| }, true) | ||
|
|
||
| await assert.rejects(async () => { await w }, /Error: Assert Failed/) | ||
| }) | ||
|
|
||
| it("should not validate a commitment from the wrong subject", async () => { | ||
| const signerPublicKey = eddsa.prv2pub(privateKey) | ||
| const credential = createCredential(secret, signerPublicKey, credentialRoot) | ||
|
|
||
| const wrongPublicKey = eddsa.prv2pub(randomBN().toString()) | ||
| const signature = eddsa.signPoseidon(wrongPublicKey, eddsa.F.e(credential.commitment)) | ||
|
|
||
| const w = circuit.calculateWitness({ | ||
| commitment: credential.commitment, | ||
| credentialRoot: credential.root, | ||
| publicKey: [ | ||
| eddsa.F.toObject(wrongPublicKey[0]), | ||
| eddsa.F.toObject(wrongPublicKey[1]) | ||
| ], | ||
| secret: credential.secret, | ||
| signature: [ | ||
| eddsa.F.toObject(signature.R8[0]), | ||
| eddsa.F.toObject(signature.R8[1]), | ||
| signature.S | ||
| ], | ||
| }, true) | ||
|
|
||
| await assert.rejects(async () => { await w }, /Error: Assert Failed/) | ||
| }) | ||
| }) |