arnaucube/keccak256-circom
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Different nBits for keccak input&output

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arnaucube
2021-11-25 20:05:49 +01:00
parent a8e0ee8ca0
commit af3e89816b
7 changed files with 96 additions and 10 deletions
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5
test/circuits/keccak_256_256_test.circom Normal file
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@@ -0,0 +1,5 @@
pragma circom 2.0.0;
include "../../circuits/keccak.circom";
component main = Keccak(32*8, 32*8);

2
test/circuits/keccak256_test.circom → test/circuits/keccak_32_256_test.circom
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@@ -2,4 +2,4 @@ pragma circom 2.0.0;
include "../../circuits/keccak.circom";
component main = Keccak(32*8);
component main = Keccak(4*8, 32*8);

51
test/keccak.js
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@@ -8,12 +8,12 @@ const c_tester = require("circom_tester").c;
const utils = require("./utils");
const keccak256 = require("keccak256");
describe("Keccak full hash test", function () {
describe("Keccak 32bytes full hash test", function () {
this.timeout(100000);
let cir;
before(async () => {
cir = await c_tester(path.join(__dirname, "circuits", "keccak256_test.circom"));
cir = await c_tester(path.join(__dirname, "circuits", "keccak_256_256_test.circom"));
await cir.loadConstraints();
console.log("n_constraints", cir.constraints.length);
});
@@ -109,3 +109,50 @@ describe("Keccak full hash test", function () {
});
});
});
describe("Keccak input: 4bytes, output: 32bytes, full hash test", function () {
this.timeout(100000);
let cir;
before(async () => {
cir = await c_tester(path.join(__dirname, "circuits", "keccak_32_256_test.circom"));
await cir.loadConstraints();
console.log("n_constraints", cir.constraints.length);
});
it ("Keccak inputSize==32bits: 1 (testvector generated from go)", async () => {
const input = [116, 101, 115, 116];
const expectedOut = [156, 34, 255, 95, 33, 240, 184, 27, 17, 62, 99,
247, 219, 109, 169, 79, 237, 239, 17, 178, 17, 155, 64, 136, 184,
150, 100, 251, 154, 60, 182, 88];
const inIn = utils.bytesToBits(input);
const witness = await cir.calculateWitness({ "in": inIn }, true);
const stateOut = witness.slice(1, 1+(32*8));
const stateOutBytes = utils.bitsToBytes(stateOut);
// console.log(stateOutBytes, expectedOut);
assert.deepEqual(stateOutBytes, expectedOut);
});
it ("Keccak256 inputSize==32bits, circom-js 1", async () => {
let input, inputBits, expectedOut, witness, stateOut, stateOutBytes;
input = Buffer.from("test");
for(let i=0; i<10; i++) {
inputBits = utils.bytesToBits(input);
let jsOutRaw = keccak256(input);
expectedOut = utils.bufferToBytes(jsOutRaw);
console.log(i, "in:", input.toString('hex'), "\n out:", jsOutRaw.toString('hex'));
witness = await cir.calculateWitness({ "in": inputBits }, true);
stateOut = witness.slice(1, 1+(32*8));
stateOutBytes = utils.bitsToBytes(stateOut);
assert.deepEqual(stateOutBytes, expectedOut);
// assign output[0:4] into input for next iteration
input = jsOutRaw.slice(0, 4);
}
});
});