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Merge branch 'master' of https://github.com/arnaucube/circomlib into arnaucube-master

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Jordi Baylina 2019-07-08 17:19:42 +02:00
commit da1cceed85
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GPG Key ID: 7480C80C1BE43112
5 changed files with 253 additions and 250 deletions
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203
circuits/poseidon.circom
View File

@ -41,119 +41,120 @@ template Mix(t, M) {
template Poseidon(nInputs, t, nRoundsF, nRoundsP) {
var C = [
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];
var M = [
[
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],[
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],[
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],[
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],[
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]
];
signal input inputs[nInputs];
signal output out;

265
package-lock.json generated
View File

@ -13,9 +13,9 @@
}
},
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"version": "7.5.0",
"resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
"integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
"requires": {
"chalk": "^2.0.0",
"esutils": "^2.0.2",
@ -44,9 +44,9 @@
"integrity": "sha512-QcAKpaO6nhHLlxWBvpc4WeLrTvPqlHOvaj0s5GriKkA1zq+bsFBPpfYCvQhLqLgYlIko8A9YrPdaMHCo5mBcpg=="
},
"acorn": {
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"resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
"integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA=="
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},
"acorn-jsx": {
"version": "5.0.1",
@ -58,6 +58,17 @@
"resolved": "https://registry.npmjs.org/aes-js/-/aes-js-3.0.0.tgz",
"integrity": "sha1-4h3xCtbCBTKVvLuNq0Cwnb6ofk0="
},
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@ -5598,14 +5578,13 @@
"integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho="
},
"wordwrap": {
"version": "0.0.3",
"resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
"integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc=",
"dev": true
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
"integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
},
"wrap-ansi": {
"version": "2.1.0",
"resolved": "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
"resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
"integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
"requires": {
"string-width": "^1.0.1",
@ -5627,7 +5606,7 @@
},
"string-width": {
"version": "1.0.2",
"resolved": "http://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
"resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
"integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
"requires": {
"code-point-at": "^1.0.0",
@ -5637,7 +5616,7 @@
},
"strip-ansi": {
"version": "3.0.1",
"resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
"resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
"integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
"requires": {
"ansi-regex": "^2.0.0"
@ -5705,9 +5684,9 @@
"integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw="
},
"xtend": {
"version": "4.0.1",
"resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
"integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
"version": "4.0.2",
"resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
"integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
},
"y18n": {
"version": "4.0.0",

1
package.json
View File

@ -25,6 +25,7 @@
"license": "GPL-3.0",
"dependencies": {
"blake-hash": "^1.1.0",
"blake2b": "^2.1.3",
"snarkjs": "0.1.11",
"typedarray-to-buffer": "^3.1.5",
"web3": "^1.0.0-beta.55"

7
src/poseidon.js
View File

@ -1,6 +1,6 @@
const bn128 = require("snarkjs").bn128;
const bigInt = require("snarkjs").bigInt;
const createBlakeHash = require("blake-hash");
const blake2b = require('blake2b');
const assert = require("assert");
const F = bn128.Fr;
@ -11,11 +11,12 @@ const T = 6;
function getPseudoRandom(seed, n) {
const res = [];
let h = createBlakeHash("blake256").update(seed).digest();
let input = Buffer.from(seed);
let h = blake2b(32).update(input).digest()
while (res.length<n) {
const n = F.affine(bigInt.leBuff2int(h));
res.push(n);
h = createBlakeHash("blake256").update(h).digest();
h = blake2b(32).update(h).digest()
}
return res;

27
test/poseidoncircuit.js
View File

@ -2,11 +2,21 @@ const chai = require("chai");
const path = require("path");
const snarkjs = require("snarkjs");
const compiler = require("circom");
var blake2b = require('blake2b');
const poseidon = require("../src/poseidon.js");
const assert = chai.assert;
describe("Blake2b version test", function() {
it("Should give the expected output for blake2b version", async () => {
var output = new Uint8Array(32);
var input = Buffer.from('poseidon_constants');
h = blake2b(output.length).update(input).digest('hex')
assert.equal('e57ba154fb2c47811dc1a2369b27e25a44915b4e4ece4eb8ec74850cb78e01b1', h);
});
});
describe("Poseidon Circuit test", function () {
let circuit;
@ -20,7 +30,7 @@ describe("Poseidon Circuit test", function () {
console.log("Poseidon constraints: " + circuit.nConstraints);
});
it("Should check constrain", async () => {
it("Should check constrain of hash([1, 2])", async () => {
const w = circuit.calculateWitness({inputs: [1, 2]});
const res = w[circuit.getSignalIdx("main.out")];
@ -28,12 +38,23 @@ describe("Poseidon Circuit test", function () {
const hash = poseidon.createHash(6, 8, 57);
const res2 = hash([1,2]);
assert.equal('12242166908188651009877250812424843524687801523336557272219921456462821518061', res2.toString());
assert.equal(res.toString(), res2.toString());
assert(circuit.checkWitness(w));
});
console.log(res.toString());
it("Should check constrain of hash([3, 4])", async () => {
const w = circuit.calculateWitness({inputs: [3, 4]});
const res = w[circuit.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(circuit.checkWitness(w));
});
});