arnaucube/keccak256-circom
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Iota Circom circuit implemented

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arnaucube
2021-11-02 16:36:34 +01:00
parent 979b7870ee
commit 4bae0b97a6
4 changed files with 88 additions and 0 deletions
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41
circuits/iota.circom Normal file
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@@ -0,0 +1,41 @@
pragma circom 2.0.0;
include "./utils.circom";
template RC(r) {
signal output out[64];
var rc[24] = [
0x0000000000000001, 0x0000000000008082, 0x800000000000808A,
0x8000000080008000, 0x000000000000808B, 0x0000000080000001,
0x8000000080008081, 0x8000000000008009, 0x000000000000008A,
0x0000000000000088, 0x0000000080008009, 0x000000008000000A,
0x000000008000808B, 0x800000000000008B, 0x8000000000008089,
0x8000000000008003, 0x8000000000008002, 0x8000000000000080,
0x000000000000800A, 0x800000008000000A, 0x8000000080008081,
0x8000000000008080, 0x0000000080000001, 0x8000000080008008
];
for (var i=0; i<64; i++) {
out[i] <== (rc[r] >> i) & 1;
}
}
template Iota(r) {
signal input in[25*64];
signal output out[25*64];
var i;
component rc = RC(r);
component iota = XorArray(64);
for (var i=0; i<64; i++) {
iota.a[i] <== in[i];
iota.b[i] <== rc.out[i];
}
for (i=0; i<64; i++) {
out[i] <== iota.out[i];
}
for (i=64; i<25*64; i++) {
out[i] <== in[i];
}
}

6
test/circuits/iota10_test.circom Normal file
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pragma circom 2.0.0;
include "../../circuits/iota.circom";
component main = Iota(10);

6
test/circuits/iota3_test.circom Normal file
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pragma circom 2.0.0;
include "../../circuits/iota.circom";
component main = Iota(3);

35
test/keccak256.js
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@@ -183,3 +183,38 @@ describe("Chi test", function () {
assert.deepEqual(stateOutU64, expectedOut); assert.deepEqual(stateOutU64, expectedOut);
}); });
}); });
describe("Iota test", function () {
this.timeout(100000);
it ("Iota 3 (testvector generated from go)", async () => {
const cir = await wasm_tester(path.join(__dirname, "circuits", "iota3_test.circom"));
const input = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24];
const expectedOut = [9223372039002292224,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24];
const stateIn = u64ArrayToBits(input);
const expectedOutBits = u64ArrayToBits(expectedOut);
const witness = await cir.calculateWitness({ "in": stateIn }, true);
const stateOut = witness.slice(1, 1+(25*64));
const stateOutU64 = bitsToU64Array(stateOut);
// console.log(stateOutU64, expectedOut);
assert.deepEqual(stateOutU64, expectedOut);
});
it ("Iota 10 (testvector generated from go)", async () => {
const cir = await wasm_tester(path.join(__dirname, "circuits", "iota10_test.circom"));
const input = [9223372039002292224,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24];
const expectedOut = [9223372036854775817,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24];
const stateIn = u64ArrayToBits(input);
const expectedOutBits = u64ArrayToBits(expectedOut);
const witness = await cir.calculateWitness({ "in": stateIn }, true);
const stateOut = witness.slice(1, 1+(25*64));
const stateOutU64 = bitsToU64Array(stateOut);
// console.log(stateOutU64, expectedOut);
assert.deepEqual(stateOutU64, expectedOut);
});
});