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Poseidon for t=3

master
Jordi Baylina 4 years ago
parent
commit
19bbada388
No known key found for this signature in database GPG Key ID: 7480C80C1BE43112
6 changed files with 80 additions and 24 deletions
  1. +2
    -0
      src/poseidon.js
  2. +1
    -1
      src/poseidon_gencontract.js
  3. +3
    -0
      test/circuits/poseidon3_test.circom
  4. +0
    -0
      test/circuits/poseidon6_test.circom
  5. +46
    -15
      test/poseidoncircuit.js
  6. +28
    -8
      test/poseidoncontract.js

+ 2
- 0
src/poseidon.js

@ -36,6 +36,8 @@ exports.getMatrix = (t, seed, nRounds) => {
if (typeof seed === "undefined") seed = SEED;
if (typeof nRounds === "undefined") nRounds = NROUNDSF + NROUNDSP;
if (typeof t === "undefined") t = T;
assert(t<=6); // Force the same matrix for all.
t=6;
let nonce = "0000";
let cmatrix = getPseudoRandom(seed+"_matrix_"+nonce, t*2);
while (!allDifferent(cmatrix)) {

+ 1
- 1
src/poseidon_gencontract.js

@ -121,7 +121,7 @@ function createCode(t, nRoundsF, nRoundsP, seed) {
// We ignore the pointer and the length and just load 6 values to the state
// (Stack positions 0-5) If the array is shorter, we just set zeros.
for (let i=0; i<t; i++) {
C.push(0x44+(0x20*(5-i)));
C.push(0x44+(0x20*(t-1-i)));
C.calldataload();
}

+ 3
- 0
test/circuits/poseidon3_test.circom

@ -0,0 +1,3 @@
include "../../circuits/poseidon.circom"
component main = Poseidon(2, 3, 8, 57);

test/circuits/poseidon_test.circom → test/circuits/poseidon6_test.circom


+ 46
- 15
test/poseidoncircuit.js

@ -18,43 +18,74 @@ describe("Blake2b version test", function() {
});
describe("Poseidon Circuit test", function () {
let circuit;
let circuit6;
let circuit3;
this.timeout(100000);
before( async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "poseidon_test.circom"));
const cirDef6 = await compiler(path.join(__dirname, "circuits", "poseidon6_test.circom"));
circuit6 = new snarkjs.Circuit(cirDef6);
console.log("Poseidon6 constraints: " + circuit6.nConstraints);
const cirDef3 = await compiler(path.join(__dirname, "circuits", "poseidon3_test.circom"));
circuit3 = new snarkjs.Circuit(cirDef3);
console.log("Poseidon3 constraints: " + circuit3.nConstraints);
});
it("Should check constrain of hash([1, 2]) t=6", async () => {
const w = circuit6.calculateWitness({inputs: [1, 2]});
circuit = new snarkjs.Circuit(cirDef);
const res = w[circuit6.getSignalIdx("main.out")];
console.log("Poseidon constraints: " + circuit.nConstraints);
const hash = poseidon.createHash(6, 8, 57);
const res2 = hash([1,2]);
assert.equal("12242166908188651009877250812424843524687801523336557272219921456462821518061", res2.toString());
assert.equal(res.toString(), res2.toString());
assert(circuit6.checkWitness(w));
});
it("Should check constrain of hash([1, 2])", async () => {
const w = circuit.calculateWitness({inputs: [1, 2]});
it("Should check constrain of hash([3, 4]) t=6", async () => {
const w = circuit6.calculateWitness({inputs: [3, 4]});
const res = w[circuit.getSignalIdx("main.out")];
const res = w[circuit6.getSignalIdx("main.out")];
const hash = poseidon.createHash(6, 8, 57);
const res2 = hash([3, 4]);
assert.equal("17185195740979599334254027721507328033796809509313949281114643312710535000993", res2.toString());
assert.equal(res.toString(), res2.toString());
assert(circuit6.checkWitness(w));
});
it("Should check constrain of hash([1, 2]) t=3", async () => {
const w = circuit3.calculateWitness({inputs: [1, 2]});
const res = w[circuit3.getSignalIdx("main.out")];
const hash = poseidon.createHash(3, 8, 57);
const res2 = hash([1,2]);
assert.equal('12242166908188651009877250812424843524687801523336557272219921456462821518061', res2.toString());
assert.equal("2104035019328376391822106787753454168168617545136592089411833517434990977743", res2.toString());
assert.equal(res.toString(), res2.toString());
assert(circuit.checkWitness(w));
assert(circuit3.checkWitness(w));
});
it("Should check constrain of hash([3, 4])", async () => {
const w = circuit.calculateWitness({inputs: [3, 4]});
it("Should check constrain of hash([3, 4]) t=3", async () => {
const w = circuit3.calculateWitness({inputs: [3, 4]});
const res = w[circuit.getSignalIdx("main.out")];
const res = w[circuit3.getSignalIdx("main.out")];
const hash = poseidon.createHash(6, 8, 57);
const hash = poseidon.createHash(3, 8, 57);
const res2 = hash([3, 4]);
assert.equal('17185195740979599334254027721507328033796809509313949281114643312710535000993', res2.toString());
assert.equal("12456141564250880945411182508630957604732712316993112736876413121277158512223", res2.toString());
assert.equal(res.toString(), res2.toString());
assert(circuit.checkWitness(w));
assert(circuit3.checkWitness(w));
});
});

+ 28
- 8
test/poseidoncontract.js

@ -8,13 +8,13 @@ const bigInt = require("snarkjs").bigInt;
const assert = chai.assert;
const log = (msg) => { if (process.env.MOCHA_VERBOSE) console.log(msg); };
const SEED = "mimc";
describe("Poseidon Smart contract test", () => {
describe("Poseidon Smart contract test", function () {
let testrpc;
let web3;
let mimc;
let poseidon6;
let poseidon3;
let accounts;
this.timeout(100000);
before(async () => {
web3 = new Web3(ganache.provider(), null, { transactionConfirmationBlocks: 1 });
@ -24,17 +24,23 @@ describe("Poseidon Smart contract test", () => {
it("Should deploy the contract", async () => {
const C = new web3.eth.Contract(poseidonGenContract.abi);
mimc = await C.deploy({
data: poseidonGenContract.createCode()
poseidon6 = await C.deploy({
data: poseidonGenContract.createCode(6)
}).send({
gas: 2500000,
from: accounts[0]
});
poseidon3 = await C.deploy({
data: poseidonGenContract.createCode(3)
}).send({
gas: 2500000,
from: accounts[0]
});
});
it("Shold calculate the mimic correctly", async () => {
it("Shold calculate the poseidon correctly t=6", async () => {
const res = await mimc.methods.poseidon([1,2]).call();
const res = await poseidon6.methods.poseidon([1,2]).call();
// console.log("Cir: " + bigInt(res.toString(16)).toString(16));
@ -45,5 +51,19 @@ describe("Poseidon Smart contract test", () => {
assert.equal(res.toString(), res2.toString());
});
it("Shold calculate the poseidon correctly t=3", async () => {
const res = await poseidon3.methods.poseidon([1,2]).call();
// console.log("Cir: " + bigInt(res.toString(16)).toString(16));
const hash = Poseidon.createHash(3, 8, 57);
const res2 = hash([1,2]);
// console.log("Ref: " + bigInt(res2).toString(16));
assert.equal(res.toString(), res2.toString());
});
});

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