arnaucube/keccak256-circom
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Keccak circuit implemented and it works

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Keccak circuit initial version implemented and it works. At this current
commit it only accepts inputs of fixed length nBits, it will be iterated
in future commits.

Currently it needs 150848 constraints.
This commit is contained in:
arnaucube
2021-11-25 18:33:18 +01:00
parent 48b66e17f9
commit 9522a57cdd
5 changed files with 168 additions and 23 deletions
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5
test/circuits/keccak256_test.circom Normal file
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@@ -0,0 +1,5 @@
pragma circom 2.0.0;
include "../../circuits/keccak256.circom";
component main = Keccak(32*8);

78
test/keccak256.js
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@@ -521,3 +521,81 @@ describe("Keccak-Squeeze test", function () {
assert.deepEqual(stateOutBytes, expectedOut);
});
});
describe("Keccak full hash test", function () {
this.timeout(100000);
let cir;
before(async () => {
cir = await c_tester(path.join(__dirname, "circuits", "keccak256_test.circom"));
await cir.loadConstraints();
console.log("n_constraints", cir.constraints.length);
});
it ("Keccak 1 (testvector generated from go)", async () => {
const input = [116, 101, 115, 116, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
const expectedOut = [37, 17, 98, 135, 161, 178, 88, 97, 125, 150, 143,
65, 228, 211, 170, 133, 153, 9, 88, 212, 4, 212, 175, 238, 249,
210, 214, 116, 170, 85, 45, 21];
const inIn = bytesToBits(input);
const witness = await cir.calculateWitness({ "in": inIn }, true);
const stateOut = witness.slice(1, 1+(32*8));
const stateOutBytes = bitsToBytes(stateOut);
// console.log(stateOutBytes, expectedOut);
assert.deepEqual(stateOutBytes, expectedOut);
});
it ("Keccak 2 (testvector generated from go)", async () => {
const input = [37, 17, 98, 135, 161, 178, 88, 97, 125, 150, 143, 65,
228, 211, 170, 133, 153, 9, 88, 212, 4, 212, 175, 238, 249, 210,
214, 116, 170, 85, 45, 21];
const expectedOut = [182, 104, 121, 2, 8, 48, 224, 11, 238, 244, 73,
142, 67, 205, 166, 27, 10, 223, 142, 209, 10, 46, 171, 110, 239,
68, 111, 116, 164, 127, 103, 141];
const inIn = bytesToBits(input);
const witness = await cir.calculateWitness({ "in": inIn }, true);
const stateOut = witness.slice(1, 1+(32*8));
const stateOutBytes = bitsToBytes(stateOut);
// console.log(stateOutBytes, expectedOut);
assert.deepEqual(stateOutBytes, expectedOut);
});
it ("Keccak 3 (testvector generated from go)", async () => {
const input = [182, 104, 121, 2, 8, 48, 224, 11, 238, 244, 73, 142, 67,
205, 166, 27, 10, 223, 142, 209, 10, 46, 171, 110, 239, 68, 111,
116, 164, 127, 103, 141];
const expectedOut = [191, 235, 249, 254, 70, 24, 106, 244, 212, 163,
52, 240, 1, 128, 235, 61, 158, 52, 138, 60, 197, 80, 113, 36, 44,
217, 55, 211, 97, 231, 26, 7];
const inIn = bytesToBits(input);
const witness = await cir.calculateWitness({ "in": inIn }, true);
const stateOut = witness.slice(1, 1+(32*8));
const stateOutBytes = bitsToBytes(stateOut);
// console.log(stateOutBytes, expectedOut);
assert.deepEqual(stateOutBytes, expectedOut);
});
it ("Keccak 4 (testvector generated from go)", async () => {
const input = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
const expectedOut = [41, 13, 236, 217, 84, 139, 98, 168, 214, 3, 69,
169, 136, 56, 111, 200, 75, 166, 188, 149, 72, 64, 8, 246, 54, 47,
147, 22, 14, 243, 229, 99];
const inIn = bytesToBits(input);
const witness = await cir.calculateWitness({ "in": inIn }, true);
const stateOut = witness.slice(1, 1+(32*8));
const stateOutBytes = bitsToBytes(stateOut);
// console.log(stateOutBytes, expectedOut);
assert.deepEqual(stateOutBytes, expectedOut);
});
});