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Merge branch 'feature/mimcsponge' of https://github.com/kobigurk/circomlib into kobigurk-feature/mimcsponge

feature/pr-19
Jordi Baylina 5 years ago
parent
7cce66b4d8 1483abaa2f
commit
861a75e0cb
No known key found for this signature in database GPG Key ID: 7480C80C1BE43112
14 changed files with 809 additions and 4 deletions
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  1. +123
    -0
      circuits/eddsamimcsponge.circom
  2. +283
    -0
      circuits/mimcsponge.circom
  3. +1
    -0
      index.js
  4. +2
    -2
      package-lock.json
  5. +43
    -2
      src/eddsa.js
  6. +0
    -0
      src/mimc_printconstants.js
  7. +86
    -0
      src/mimcsponge.js
  8. +128
    -0
      src/mimcsponge_gencontract.js
  9. +13
    -0
      src/mimcsponge_printconstants.js
  10. +13
    -0
      src/mimcsponge_printcontract.js
  11. +3
    -0
      test/circuits/mimc_sponge_hash_test.circom
  12. +3
    -0
      test/circuits/mimc_sponge_test.circom
  13. +58
    -0
      test/mimcspongecircuit.js
  14. +53
    -0
      test/mimcspongecontract.js

+ 123
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circuits/eddsamimcsponge.circom
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@ -0,0 +1,123 @@
/*
Copyright 2018 0KIMS association.
This file is part of circom (Zero Knowledge Circuit Compiler).
circom is a free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
circom is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with circom. If not, see <https://www.gnu.org/licenses/>.
*/
include "compconstant.circom";
include "pointbits.circom";
include "mimcsponge.circom";
include "bitify.circom";
include "escalarmulany.circom";
include "escalarmulfix.circom";
template EdDSAMiMCSpongeVerifier() {
signal input enabled;
signal input Ax;
signal input Ay;
signal input S;
signal input R8x;
signal input R8y;
signal input M;
var i;
// Ensure S<Subgroup Order
component snum2bits = Num2Bits(253);
snum2bits.in <== S;
component compConstant = CompConstant(2736030358979909402780800718157159386076813972158567259200215660948447373040);
for (i=0; i<253; i++) {
snum2bits.out[i] ==> compConstant.in[i];
}
compConstant.in[253] <== 0;
compConstant.out === 0;
// Calculate the h = H(R,A, msg)
component hash = MiMCSponge(5, 220, 1);
hash.ins[0] <== R8x;
hash.ins[1] <== R8y;
hash.ins[2] <== Ax;
hash.ins[3] <== Ay;
hash.ins[4] <== M;
hash.k <== 0;
component h2bits = Num2Bits_strict();
h2bits.in <== hash.outs[0];
// Calculate second part of the right side: right2 = h*8*A
// Multiply by 8 by adding it 3 times. This also ensure that the result is in
// the subgroup.
component dbl1 = BabyDbl();
dbl1.x <== Ax;
dbl1.y <== Ay;
component dbl2 = BabyDbl();
dbl2.x <== dbl1.xout;
dbl2.y <== dbl1.yout;
component dbl3 = BabyDbl();
dbl3.x <== dbl2.xout;
dbl3.y <== dbl2.yout;
// We check that A is not zero.
component isZero = IsZero();
isZero.in <== dbl3.x;
isZero.out === 0;
component mulAny = EscalarMulAny(254);
for (i=0; i<254; i++) {
mulAny.e[i] <== h2bits.out[i];
}
mulAny.p[0] <== dbl3.xout;
mulAny.p[1] <== dbl3.yout;
// Compute the right side: right = R8 + right2
component addRight = BabyAdd();
addRight.x1 <== R8x;
addRight.y1 <== R8y;
addRight.x2 <== mulAny.out[0];
addRight.y2 <== mulAny.out[1];
// Calculate left side of equation left = S*B8
var BASE8 = [
17777552123799933955779906779655732241715742912184938656739573121738514868268,
2626589144620713026669568689430873010625803728049924121243784502389097019475
];
component mulFix = EscalarMulFix(253, BASE8);
for (i=0; i<253; i++) {
mulFix.e[i] <== snum2bits.out[i];
}
// Do the comparation left == right if enabled;
component eqCheckX = ForceEqualIfEnabled();
eqCheckX.enabled <== enabled;
eqCheckX.in[0] <== mulFix.out[0];
eqCheckX.in[1] <== addRight.xout;
component eqCheckY = ForceEqualIfEnabled();
eqCheckY.enabled <== enabled;
eqCheckY.in[0] <== mulFix.out[1];
eqCheckY.in[1] <== addRight.yout;
}

+ 283
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circuits/mimcsponge.circom
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@ -0,0 +1,283 @@
// implements MiMC-2n/n as hash using a sponge construction.
// log_5(21888242871839275222246405745257275088548364400416034343698204186575808495617) ~= 110
// => nRounds should be 220
template MiMCSponge(nInputs, nRounds, nOutputs) {
signal input ins[nInputs];
signal input k;
signal output outs[nOutputs];
// S = R||C
component S[nInputs + nOutputs - 1];
for (var i = 0; i < nInputs; i++) {
S[i] = MiMCFeistel(nRounds);
S[i].k <== k;
if (i == 0) {
S[i].xL_in <== ins[0];
S[i].xR_in <== 0;
} else {
S[i].xL_in <== S[i-1].xL_out + ins[i];
S[i].xR_in <== S[i-1].xR_out;
}
}
outs[0] = S[nInputs - 1].xL_out;
for (var i = 0; i < nOutputs - 1; i++) {
S[nInputs + i] = MiMCFeistel(nRounds);
S[nInputs + i].k <== k;
S[nInputs + i].xL_in <== S[nInputs + i - 1].xL_out;
S[nInputs + i].xR_in <== S[nInputs + i - 1].xR_out;
outs[i + 1] <== S[nInputs + i].xL_out;
}
}
template MiMCFeistel(nrounds) {
signal input xL_in;
signal input xR_in;
signal input k;
signal output xL_out;
signal output xR_out;
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6252650284989960032925831409804233477770646333900692286731621844532438095656,
9277135875276787021836189566799935097400042171346561246305113339462708861695,
10493603554686607050979497281838644324893776154179810893893660722522945589063,
8673089750662709235894359384294076697329948991010184356091130382437645649279,
9558393272910366944245875920138649617479779893610128634419086981339060613250,
19012287860122586147374214541764572282814469237161122489573881644994964647218,
9783723818270121678386992630754842961728702994964214799008457449989291229500,
15550788416669474113213749561488122552422887538676036667630838378023479382689,
15016165746156232864069722572047169071786333815661109750860165034341572904221,
6506225705710197163670556961299945987488979904603689017479840649664564978574,
10796631184889302076168355684722130903785890709107732067446714470783437829037,
19871836214837460419845806980869387567383718044439891735114283113359312279540,
20871081766843466343749609089986071784031203517506781251203251608363835140622,
5100105771517691442278432864090229416166996183792075307747582375962855820797,
8777887112076272395250620301071581171386440850451972412060638225741125310886,
5300440870136391278944213332144327695659161151625757537632832724102670898756,
1205448543652932944633962232545707633928124666868453915721030884663332604536,
5542499997310181530432302492142574333860449305424174466698068685590909336771,
11028094245762332275225364962905938096659249161369092798505554939952525894293,
19187314764836593118404597958543112407224947638377479622725713735224279297009,
17047263688548829001253658727764731047114098556534482052135734487985276987385,
19914849528178967155534624144358541535306360577227460456855821557421213606310,
2929658084700714257515872921366736697080475676508114973627124569375444665664,
15092262360719700162343163278648422751610766427236295023221516498310468956361,
21578580340755653236050830649990190843552802306886938815497471545814130084980,
1258781501221760320019859066036073675029057285507345332959539295621677296991,
3819598418157732134449049289585680301176983019643974929528867686268702720163,
8653175945487997845203439345797943132543211416447757110963967501177317426221,
6614652990340435611114076169697104582524566019034036680161902142028967568142,
19212515502973904821995111796203064175854996071497099383090983975618035391558,
18664315914479294273286016871365663486061896605232511201418576829062292269769,
11498264615058604317482574216318586415670903094838791165247179252175768794889,
10814026414212439999107945133852431304483604215416531759535467355316227331774,
17566185590731088197064706533119299946752127014428399631467913813769853431107,
14016139747289624978792446847000951708158212463304817001882956166752906714332,
8242601581342441750402731523736202888792436665415852106196418942315563860366,
9244680976345080074252591214216060854998619670381671198295645618515047080988,
12216779172735125538689875667307129262237123728082657485828359100719208190116,
10702811721859145441471328511968332847175733707711670171718794132331147396634,
6479667912792222539919362076122453947926362746906450079329453150607427372979,
15117544653571553820496948522381772148324367479772362833334593000535648316185,
6842203153996907264167856337497139692895299874139131328642472698663046726780,
12732823292801537626009139514048596316076834307941224506504666470961250728055,
6936272626871035740815028148058841877090860312517423346335878088297448888663,
17297554111853491139852678417579991271009602631577069694853813331124433680030,
16641596134749940573104316021365063031319260205559553673368334842484345864859,
7400481189785154329569470986896455371037813715804007747228648863919991399081,
2273205422216987330510475127669563545720586464429614439716564154166712854048,
15162538063742142685306302282127534305212832649282186184583465569986719234456,
5628039096440332922248578319648483863204530861778160259559031331287721255522,
16085392195894691829567913404182676871326863890140775376809129785155092531260,
14227467863135365427954093998621993651369686288941275436795622973781503444257,
18224457394066545825553407391290108485121649197258948320896164404518684305122,
274945154732293792784580363548970818611304339008964723447672490026510689427,
11050822248291117548220126630860474473945266276626263036056336623671308219529,
2119542016932434047340813757208803962484943912710204325088879681995922344971,
0
];
var t;
signal t2[nrounds];
signal t4[nrounds];
signal xL[nrounds-1];
signal xR[nrounds-1];
for (var i=0; i<nrounds; i++) {
t = (i==0) ? k+xL_in : k + xL[i-1] + c[i];
t2[i] <== t*t;
t4[i] <== t2[i]*t2[i];
if (i<nrounds-1) {
xL[i] <== ((i==0) ? xR_in : xR[i-1]) + t4[i]*t;
xR[i] = (i==0) ? xL_in : xL[i-1];
} else {
xR_out <== xR[i-1] + t4[i]*t;
xL_out <== xL[i-1];
}
}
}

+ 1
- 0
index.js
View File

@ -1,5 +1,6 @@
exports.smt = require("./src/smt"); exports.smt = require("./src/smt");
exports.eddsa = require("./src/eddsa"); exports.eddsa = require("./src/eddsa");
exports.mimc7 = require("./src/mimc7"); exports.mimc7 = require("./src/mimc7");
exports.mimcsponge = require("./src/mimcsponge");
exports.babyJub = require("./src/babyjub"); exports.babyJub = require("./src/babyjub");
exports.pedersenHash = require("./src/pedersenHash"); exports.pedersenHash = require("./src/pedersenHash");

+ 2
- 2
package-lock.json
View File

@ -3909,7 +3909,7 @@
}, },
"os-tmpdir": { "os-tmpdir": {
"version": "1.0.2", "version": "1.0.2",
"resolved": "http://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
"resolved": "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
"integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=" "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ="
}, },
"p-defer": { "p-defer": {
@ -4785,7 +4785,7 @@
}, },
"sprintf-js": { "sprintf-js": {
"version": "1.0.3", "version": "1.0.3",
"resolved": "http://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
"resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
"integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=" "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw="
}, },
"stack-trace": { "stack-trace": {

+ 43
- 2
src/eddsa.js
View File

@ -4,14 +4,17 @@ const babyJub = require("./babyjub");
const pedersenHash = require("./pedersenHash").hash; const pedersenHash = require("./pedersenHash").hash;
const mimc7 = require("./mimc7"); const mimc7 = require("./mimc7");
const poseidon = require("./poseidon.js"); const poseidon = require("./poseidon.js");
const mimcsponge = require("./mimcsponge");
exports.prv2pub= prv2pub; exports.prv2pub= prv2pub;
exports.sign = sign; exports.sign = sign;
exports.signMiMC = signMiMC; exports.signMiMC = signMiMC;
exports.signPoseidon = signPoseidon; exports.signPoseidon = signPoseidon;
exports.signMiMCSponge = signMiMCSponge;
exports.verify = verify; exports.verify = verify;
exports.verifyMiMC = verifyMiMC; exports.verifyMiMC = verifyMiMC;
exports.verifyPoseidon = verifyPoseidon; exports.verifyPoseidon = verifyPoseidon;
exports.verifyMiMCSponge = verifyMiMCSponge;
exports.packSignature = packSignature; exports.packSignature = packSignature;
exports.unpackSignature = unpackSignature; exports.unpackSignature = unpackSignature;
exports.pruneBuffer = pruneBuffer; exports.pruneBuffer = pruneBuffer;
@ -72,6 +75,24 @@ function signMiMC(prv, msg) {
}; };
} }
function signMiMCSponge(prv, msg) {
const h1 = createBlakeHash("blake512").update(prv).digest();
const sBuff = pruneBuffer(h1.slice(0,32));
const s = bigInt.leBuff2int(sBuff);
const A = babyJub.mulPointEscalar(babyJub.Base8, s.shr(3));
const msgBuff = bigInt.leInt2Buff(msg, 32);
const rBuff = createBlakeHash("blake512").update(Buffer.concat([h1.slice(32,64), msgBuff])).digest();
let r = bigInt.leBuff2int(rBuff);
r = r.mod(babyJub.subOrder);
const R8 = babyJub.mulPointEscalar(babyJub.Base8, r);
const hm = mimcsponge.multiHash([R8[0], R8[1], A[0], A[1], msg]);
const S = r.add(hm.mul(s)).mod(babyJub.subOrder);
return {
R8: R8,
S: S
};
}
function signPoseidon(prv, msg) { function signPoseidon(prv, msg) {
const h1 = createBlakeHash("blake512").update(prv).digest(); const h1 = createBlakeHash("blake512").update(prv).digest();
@ -84,9 +105,7 @@ function signPoseidon(prv, msg) {
let r = bigInt.leBuff2int(rBuff); let r = bigInt.leBuff2int(rBuff);
r = r.mod(babyJub.subOrder); r = r.mod(babyJub.subOrder);
const R8 = babyJub.mulPointEscalar(babyJub.Base8, r); const R8 = babyJub.mulPointEscalar(babyJub.Base8, r);
const hash = poseidon.createHash(6, 8, 57); const hash = poseidon.createHash(6, 8, 57);
const hm = hash([R8[0], R8[1], A[0], A[1], msg]); const hm = hash([R8[0], R8[1], A[0], A[1], msg]);
const S = r.add(hm.mul(s)).mod(babyJub.subOrder); const S = r.add(hm.mul(s)).mod(babyJub.subOrder);
return { return {
@ -166,6 +185,28 @@ function verifyPoseidon(msg, sig, A) {
return true; return true;
} }
function verifyMiMCSponge(msg, sig, A) {
// Check parameters
if (typeof sig != "object") return false;
if (!Array.isArray(sig.R8)) return false;
if (sig.R8.length!= 2) return false;
if (!babyJub.inCurve(sig.R8)) return false;
if (!Array.isArray(A)) return false;
if (A.length!= 2) return false;
if (!babyJub.inCurve(A)) return false;
if (sig.S>= babyJub.subOrder) return false;
const hm = mimcsponge.multiHash([sig.R8[0], sig.R8[1], A[0], A[1], msg]);
const Pleft = babyJub.mulPointEscalar(babyJub.Base8, sig.S);
let Pright = babyJub.mulPointEscalar(A, hm.mul(bigInt("8")));
Pright = babyJub.addPoint(sig.R8, Pright);
if (!Pleft[0].equals(Pright[0])) return false;
if (!Pleft[1].equals(Pright[1])) return false;
return true;
}
function packSignature(sig) { function packSignature(sig) {
const R8p = babyJub.packPoint(sig.R8); const R8p = babyJub.packPoint(sig.R8);
const Sp = bigInt.leInt2Buff(sig.S, 32); const Sp = bigInt.leInt2Buff(sig.S, 32);

src/mimc_printconstants..js → src/mimc_printconstants.js
View File


+ 86
- 0
src/mimcsponge.js
View File

@ -0,0 +1,86 @@
const bn128 = require("snarkjs").bn128;
const bigInt = require("snarkjs").bigInt;
const Web3Utils = require("web3-utils");
const F = bn128.Fr;
const SEED = "mimcsponge";
const NROUNDS = 220;
exports.getIV = (seed) => {
if (typeof seed === "undefined") seed = SEED;
const c = Web3Utils.keccak256(seed+"_iv");
const cn = bigInt(Web3Utils.toBN(c).toString());
const iv = cn.mod(F.q);
return iv;
};
exports.getConstants = (seed, nRounds) => {
if (typeof seed === "undefined") seed = SEED;
if (typeof nRounds === "undefined") nRounds = NROUNDS;
const cts = new Array(nRounds);
let c = Web3Utils.keccak256(SEED);
for (let i=1; i<nRounds; i++) {
c = Web3Utils.keccak256(c);
const n1 = Web3Utils.toBN(c).mod(Web3Utils.toBN(F.q.toString()));
const c2 = Web3Utils.padLeft(Web3Utils.toHex(n1), 64);
cts[i] = bigInt(Web3Utils.toBN(c2).toString());
}
cts[0] = bigInt(0);
cts[cts.length - 1] = bigInt(0);
return cts;
};
const cts = exports.getConstants(SEED, NROUNDS);
exports.hash = (_xL_in, _xR_in, _k) =>{
let xL = bigInt(_xL_in);
let xR = bigInt(_xR_in);
const k = bigInt(_k);
for (let i=0; i<NROUNDS; i++) {
const c = cts[i];
const t = (i==0) ? F.add(xL, k) : F.add(F.add(xL, k), c);
const xR_tmp = bigInt(xR);
if (i < (NROUNDS - 1)) {
xR = xL;
xL = F.add(xR_tmp, F.exp(t, 5));
} else {
xR = F.add(xR_tmp, F.exp(t, 5));
}
}
return {
xL: F.affine(xL),
xR: F.affine(xR),
};
};
exports.multiHash = (arr, key, numOutputs) => {
if (typeof(numOutputs) === "undefined") {
numOutputs = 1;
}
if (typeof(key) === "undefined") {
key = F.zero;
}
let R = F.zero;
let C = F.zero;
for (let i=0; i<arr.length; i++) {
R = F.add(R, bigInt(arr[i]));
const S = exports.hash(R, C, key);
R = S.xL;
C = S.xR;
}
let outputs = [R];
for (let i=1; i < numOutputs; i++) {
const S = exports.hash(R, C, key);
R = S.xL;
C = S.xR;
outputs.push(R);
}
if (numOutputs == 1) {
return F.affine(outputs[0]);
} else {
return outputs.map(x => F.affine(x));
}
};

+ 128
- 0
src/mimcsponge_gencontract.js
View File

@ -0,0 +1,128 @@
// Copyright (c) 2018 Jordi Baylina
// License: LGPL-3.0+
//
const Web3Utils = require("web3-utils");
const Contract = require("./evmasm");
function createCode(seed, n) {
let ci = Web3Utils.keccak256(seed);
const C = new Contract();
C.push(0x64);
C.push("0x00");
C.push("0x00");
C.calldatacopy();
C.push("0x0100000000000000000000000000000000000000000000000000000000");
C.push("0x00");
C.mload();
C.div();
C.push("0x3f1a1187"); // MiMCSponge(uint256,uint256,uint256)
C.eq();
C.jmpi("start");
C.invalid();
C.label("start");
C.push("0x30644e72e131a029b85045b68181585d2833e84879b9709143e1f593f0000001"); // q
C.push("0x44");
C.mload(); // k q
C.push("0x04");
C.mload(); // xL k q
C.dup(2); // q xL k q
C.push("0x24");
C.mload(); // xR q xL k q
C.dup(1); // q xR q xL k q
C.dup(0); // q q xR q xL k q
C.dup(4); // xL q q xR q xL k q
C.dup(6); // k xL q q xR q xL k q
C.addmod(); // t=k+xL q xR q xL k q
C.dup(1); // q t q xR q xL k q
C.dup(0); // q q t q xR q xL k q
C.dup(2); // t q q t q xR q xL k q
C.dup(0); // t t q q t q xR q xL k q
C.mulmod(); // b=t^2 q t q xR q xL k q
C.dup(0); // b b q t q xR q xL k q
C.mulmod(); // c=t^4 t q xR q xL k q
C.mulmod(); // d=t^5 xR q xL k q
C.addmod(); // e=t^5+xR xL k q (for next round: xL xR k q)
for (let i=0; i<n-1; i++) {
if (i < n-2) {
ci = Web3Utils.keccak256(ci);
} else {
ci = "0x00";
}
C.swap(1); // xR xL k q
C.dup(3); // q xR xL k q
C.dup(3); // k q xR xL k q
C.dup(1); // q k q xR xL k q
C.dup(4); // xL q k q xR xL k q
C.push(ci); // ci xL q k q xR xL k q
C.addmod(); // a=ci+xL k q xR xL k q
C.addmod(); // t=a+k xR xL k q
C.dup(4); // q t xR xL k q
C.swap(1); // t q xR xL k q
C.dup(1); // q t q xR xL k q
C.dup(0); // q q t q xR xL k q
C.dup(2); // t q q t q xR xL k q
C.dup(0); // t t q q t q xR xL k q
C.mulmod(); // b=t^2 q t q xR xL k q
C.dup(0); // b b q t q xR xL k q
C.mulmod(); // c=t^4 t q xR xL k q
C.mulmod(); // d=t^5 xR xL k q
C.dup(4); // q d xR xL k q
C.swap(2); // xR d q xL k q
C.addmod(); // e=t^5+xR xL k q (for next round: xL xR k q)
}
C.push("0x20");
C.mstore(); // Save it to pos 0;
C.push("0x00");
C.mstore(); // Save it to pos 1;
C.push("0x40");
C.push("0x00");
C.return();
return C.createTxData();
}
module.exports.abi = [
{
"constant": true,
"inputs": [
{
"name": "xL_in",
"type": "uint256"
},
{
"name": "xR_in",
"type": "uint256"
},
{
"name": "k",
"type": "uint256"
}
],
"name": "MiMCSponge",
"outputs": [
{
"name": "xL",
"type": "uint256"
},
{
"name": "xR",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "pure",
"type": "function"
}
];
module.exports.createCode = createCode;

+ 13
- 0
src/mimcsponge_printconstants.js
View File

@ -0,0 +1,13 @@
const mimcsponge = require("./mimcsponge.js");
const nRounds = 220;
let S = "[\n";
const cts = mimcsponge.getConstants();
for (let i=0; i<nRounds; i++) {
S = S + cts[i].toString();
if (i<nRounds-1) S = S + ",";
S=S+"\n";
}
S = S + "]\n";
console.log(S);

+ 13
- 0
src/mimcsponge_printcontract.js
View File

@ -0,0 +1,13 @@
const mimcGenContract = require("./mimcsponge_gencontract");
const SEED = "mimcsponge";
let nRounds;
if (typeof process.argv[2] != "undefined") {
nRounds = parseInt(process.argv[2]);
} else {
nRounds = 220;
}
console.log(mimcGenContract.createCode(SEED, nRounds));

+ 3
- 0
test/circuits/mimc_sponge_hash_test.circom
View File

@ -0,0 +1,3 @@
include "../../circuits/mimcsponge.circom"
component main = MiMCSponge(2, 220, 3);

+ 3
- 0
test/circuits/mimc_sponge_test.circom
View File

@ -0,0 +1,3 @@
include "../../circuits/mimcsponge.circom"
component main = MiMCFeistel(220);

+ 58
- 0
test/mimcspongecircuit.js
View File

@ -0,0 +1,58 @@
const chai = require("chai");
const path = require("path");
const snarkjs = require("snarkjs");
const compiler = require("circom");
const mimcjs = require("../src/mimcsponge.js");
const assert = chai.assert;
describe("MiMC Sponge Circuit test", function () {
let circuit;
this.timeout(100000);
it("Should check permutation", async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "mimc_sponge_test.circom"));
circuit = new snarkjs.Circuit(cirDef);
console.log("MiMC Feistel constraints: " + circuit.nConstraints);
const w = circuit.calculateWitness({xL_in: 1, xR_in: 2, k: 3});
const xLout = w[circuit.getSignalIdx("main.xL_out")];
const xRout = w[circuit.getSignalIdx("main.xR_out")];
const out2 = mimcjs.hash(1,2,3);
assert.equal(xLout.toString(), out2.xL.toString());
assert.equal(xRout.toString(), out2.xR.toString());
assert(circuit.checkWitness(w));
});
it("Should check hash", async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "mimc_sponge_hash_test.circom"));
circuit = new snarkjs.Circuit(cirDef);
console.log("MiMC Sponge constraints: " + circuit.nConstraints);
const w = circuit.calculateWitness({ins: [1, 2], k: 0});
const o1 = w[circuit.getSignalIdx("main.outs[0]")];
const o2 = w[circuit.getSignalIdx("main.outs[1]")];
const o3 = w[circuit.getSignalIdx("main.outs[2]")];
const out2 = mimcjs.multiHash([1,2], 0, 3);
assert.equal(o1.toString(), out2[0].toString());
assert.equal(o2.toString(), out2[1].toString());
assert.equal(o3.toString(), out2[2].toString());
assert(circuit.checkWitness(w));
});
});

+ 53
- 0
test/mimcspongecontract.js
View File

@ -0,0 +1,53 @@
const TestRPC = require("ganache-cli");
const Web3 = require("web3");
const chai = require("chai");
const mimcGenContract = require("../src/mimcsponge_gencontract.js");
const mimcjs = require("../src/mimcsponge.js");
const assert = chai.assert;
const log = (msg) => { if (process.env.MOCHA_VERBOSE) console.log(msg); };
const SEED = "mimcsponge";
describe("MiMC Sponge Smart contract test", () => {
let testrpc;
let web3;
let mimc;
let accounts;
before(async () => {
testrpc = TestRPC.server({
ws: true,
gasLimit: 5800000,
total_accounts: 10,
});
testrpc.listen(8546, "127.0.0.1");
web3 = new Web3("ws://127.0.0.1:8546");
accounts = await web3.eth.getAccounts();
});
after(async () => testrpc.close());
it("Should deploy the contract", async () => {
const C = new web3.eth.Contract(mimcGenContract.abi);
mimc = await C.deploy({
data: mimcGenContract.createCode(SEED, 220)
}).send({
gas: 3500000,
from: accounts[0]
});
});
it("Shold calculate the mimc correctly", async () => {
const res = await mimc.methods.MiMCSponge(1,2,3).call();
const res2 = await mimcjs.hash(1,2,3);
assert.equal(res.xL.toString(), res2.xL.toString());
assert.equal(res.xR.toString(), res2.xR.toString());
});
});

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