Update web3

This commit is contained in:
Jordi Baylina 2019-07-08 14:08:04 +02:00
parent d689f737d8
commit a9227b7b58
No known key found for this signature in database
GPG Key ID: 7480C80C1BE43112
22 changed files with 4452 additions and 7609 deletions

@ -55,7 +55,7 @@ template ForceEqualIfEnabled() {
(1 - isz.out)*enabled === 0;
}
/*
// N is the number of bits the input have.
// The MSF is the sign bit.
template LessThan(n) {
@ -83,3 +83,57 @@ template LessThan(n) {
adder.out[n-1] ==> out;
}
*/
template LessThan(n) {
signal input in[2];
signal output out;
component n2b = Num2Bits(n*2+1);
n2b.in <== in[0]+ (1<<n) - in[1];
out <== 1-n2b.out[n];
}
// N is the number of bits the input have.
// The MSF is the sign bit.
template LessEqThan(n) {
signal input in[2];
signal output out;
component lt = LessThan(n);
lt.in[0] <== in[0];
lt.in[1] <== in[1]+1;
lt.out ==> out;
}
// N is the number of bits the input have.
// The MSF is the sign bit.
template GreaterThan(n) {
signal input in[2];
signal output out;
component lt = LessThan(n);
lt.in[0] <== in[1];
lt.in[1] <== in[0];
lt.out ==> out;
}
// N is the number of bits the input have.
// The MSF is the sign bit.
template GreaterEqThan(n) {
signal input in[2];
signal output out;
component lt = LessThan(n);
lt.in[0] <== in[1];
lt.in[1] <== in[0]+1;
lt.out ==> out;
}

@ -0,0 +1,122 @@
/*
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 "poseidon.circom";
include "bitify.circom";
include "escalarmulany.circom";
include "escalarmulfix.circom";
template EdDSAPoseidonVerifier() {
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 = Poseidon(5, 6, 8, 57);
hash.inputs[0] <== R8x;
hash.inputs[1] <== R8y;
hash.inputs[2] <== Ax;
hash.inputs[3] <== Ay;
hash.inputs[4] <== M;
component h2bits = Num2Bits_strict();
h2bits.in <== hash.out;
// 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;
}

47
circuits/mux1.circom Normal file

@ -0,0 +1,47 @@
/*
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/>.
*/
template MultiMux1(n) {
signal input c[n][2]; // Constants
signal input s; // Selector
signal output out[n];
for (var i=0; i<n; i++) {
out[i] <== (c[i][1] - c[i][0])*s + c[i][0];
}
}
template Mux1() {
var i;
signal input c[2]; // Constants
signal input s; // Selector
signal output out;
component mux = MultiMux1(1);
for (i=0; i<2; i++) {
mux.c[0][i] <== c[i];
}
s ==> mux.s;
mux.out[0] ==> out;
}

62
circuits/mux2.circom Normal file

@ -0,0 +1,62 @@
/*
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/>.
*/
template MultiMux2(n) {
signal input c[n][4]; // Constants
signal input s[2]; // Selector
signal output out[n];
signal a10[n];
signal a1[n];
signal a0[n];
signal a[n];
signal s10;
s10 <== s[1] * s[0];
for (var i=0; i<n; i++) {
a10[i] <== ( c[i][ 3]-c[i][ 2]-c[i][ 1]+c[i][ 0] ) * s10;
a1[i] <== ( c[i][ 2]-c[i][ 0] ) * s[1];
a0[i] <== ( c[i][ 1]-c[i][ 0] ) * s[0];
a[i] <== ( c[i][ 0] )
out[i] <== ( a10[i] + a1[i] + a0[i] + a[i] );
}
}
template Mux2() {
var i;
signal input c[4]; // Constants
signal input s[2]; // Selector
signal output out;
component mux = MultiMux2(1);
for (i=0; i<4; i++) {
mux.c[0][i] <== c[i];
}
for (i=0; i<2; i++) {
s[i] ==> mux.s[i];
}
mux.out[0] ==> out;
}

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package-lock.json generated

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@ -27,12 +27,12 @@
"blake-hash": "^1.1.0",
"snarkjs": "0.1.11",
"typedarray-to-buffer": "^3.1.5",
"web3": "^1.0.0-beta.36"
"web3": "^1.0.0-beta.55"
},
"devDependencies": {
"circom": "0.0.28",
"eslint-plugin-mocha": "^5.2.0",
"ganache-cli": "^6.2.3",
"ganache-cli": "^6.4.4",
"mocha": "^5.2.0"
}
}

@ -3,12 +3,15 @@ const bigInt = require("snarkjs").bigInt;
const babyJub = require("./babyjub");
const pedersenHash = require("./pedersenHash").hash;
const mimc7 = require("./mimc7");
const poseidon = require("./poseidon.js");
exports.prv2pub= prv2pub;
exports.sign = sign;
exports.signMiMC = signMiMC;
exports.signPoseidon = signPoseidon;
exports.verify = verify;
exports.verifyMiMC = verifyMiMC;
exports.verifyPoseidon = verifyPoseidon;
exports.packSignature = packSignature;
exports.unpackSignature = unpackSignature;
exports.pruneBuffer = pruneBuffer;
@ -69,6 +72,29 @@ function signMiMC(prv, msg) {
};
}
function signPoseidon(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 hash = poseidon.createHash(6, 8, 57);
const hm = hash([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 verify(msg, sig, A) {
// Check parameters
if (typeof sig != "object") return false;
@ -116,6 +142,30 @@ function verifyMiMC(msg, sig, A) {
return true;
}
function verifyPoseidon(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 hash = poseidon.createHash(6, 8, 57);
const hm = hash([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) {
const R8p = babyJub.packPoint(sig.R8);
const Sp = bigInt.leInt2Buff(sig.S, 32);

583
src/g2_gencontract.js Normal file

@ -0,0 +1,583 @@
// Copyright (c) 2018 Jordi Baylina
// License: LGPL-3.0+
//
const Contract = require("./evmasm");
const G2 = require("snarkjs").bn128.G2;
const bigInt = require("snarkjs").bigInt;
function toHex256(a) {
let S = a.toString(16);
while (S.length < 64) S="0"+S;
return "0x" + S;
}
function createCode(P, w) {
const C = new Contract();
const NPOINTS = 1 << (w-1);
const VAR_POS = C.allocMem(32);
const VAR_POINTS = C.allocMem( (NPOINTS)*4*32);
const savedP = C.allocMem(32);
const savedZ3 = C.allocMem(32);
// Check selector
C.push("0x0100000000000000000000000000000000000000000000000000000000");
C.push(0);
C.calldataload();
C.div();
C.push("b65c7c74"); // mulexp(uint256)
C.eq();
C.jmpi("start");
C.invalid();
C.label("start");
storeVals();
C.push( Math.floor(255/w)*w ); // pos := 255
C.push(VAR_POS);
C.mstore();
C.push("21888242871839275222246405745257275088696311157297823662689037894645226208583");
C.push(0);
C.push(0);
C.push(0);
C.push(0);
C.push(0);
C.push(0);
C.label("begin_loop"); // ACC_X ACC_Y ACC_Z q
C.internalCall("double");
// g = (e>>pos)&MASK
C.push(4);
C.calldataload(); // e ACC_X ACC_Y ACC_Z q
C.push(VAR_POS);
C.mload(); // pos e ACC_X ACC_Y ACC_Z q
C.shr();
C.push(NPOINTS-1);
C.and(); // g ACC_X ACC_Y ACC_Z q
C.internalCall("add"); // acc_x acc_y acc_z
C.push(VAR_POS);
C.mload(); // pos acc_x acc_y acc_z
C.dup(0); // pos pos acc_x acc_y acc_z
C.push(0); // 0 pos pos acc_x acc_y acc_z
C.eq(); // eq pos acc_x acc_y acc_z
C.jmpi("after_loop"); // pos acc_x acc_y acc_z
C.push(w); // 5 pos acc_x acc_y acc_z
C.sub(); // pos acc_x acc_y acc_z
C.push(VAR_POS);
C.mstore(); // acc_x acc_y acc_z
C.jmp("begin_loop");
C.label("after_loop"); // pos acc_x acc_y acc_z
C.pop(); // acc_x acc_y acc_z
C.internalCall("affine"); // acc_x acc_y
C.push(0);
C.mstore();
C.push(20);
C.mstore();
C.push(40);
C.mstore();
C.push(60);
C.mstore();
C.push("0x80");
C.push("0x00");
C.return();
double();
addPoint();
affine();
return C.createTxData();
function add(a,b,q) {
C.dup(q);
C.dup(a+1 + 1);
C.dup(b+1 + 2);
C.addmod();
C.dup(q + 1);
C.dup(a + 2);
C.dup(b + 3);
C.addmod();
}
function sub(a,b,q) {
C.dup(q); // q
C.dup(a+1 + 1); // ai q
C.dub(q + 2); // q ai q
C.dup(b+1 + 3); // bi q ai q
C.sub(); // -bi ai q
C.addmod(); // ci
C.dup(q + 1); // q ci
C.dup(a + 2); // ar q ci
C.dup(q + 3); // q ar q ci
C.dup(b + 4); // br q ar q ci
C.sub(); // -br ar q ci
C.addmod(); // cr ci
}
function mul(a, b, q) {
C.dup(q); // q
C.dup(q + 1); // q q
C.dup(a + 2); // ar q q
C.dup(b+1 + 3); // bi ar q q
C.mulmod(); // ci1 q
C.dup(q + 2); // q ci1 q
C.dup(a+1 + 3); // ai q ci1 q
C.dup(b + 4); // ar ai q ci1 q
C.mulmod(); // ci2 ci1 q
C.addmod(); // ci
C.dup(q + 1); // q ci
C.dup(q + 2); // q q ci
C.dup(q + 3); // q q q ci
C.dup(a+1 + 4); // ai q q ci
C.dup(b+1 + 5); // bi ai q q ci
C.mulmod(); // cr2 q q ci
C.sub(); // -cr2 q ci
C.dup(q + 3); // q -cr2 q ci
C.dup(a + 4); // ar q -cr2 q ci
C.dup(b + 5); // br ar q -cr2 q ci
C.mulmod(); // cr1 -cr2 q ci
C.addmod(); // cr ci
}
function square(a, q) {
C.dup(q); // q
C.dup(q + 1); // q q
C.dup(a + 2); // ar q q
C.dup(a+1 + 3); // ai ar q q
C.mulmod(); // arai q
C.dup(0); // arai arai q
C.addmod(); // ci
C.dup(q + 1); // q ci
C.dup(q + 2); // q q ci
C.dup(q + 3); // q q q ci
C.dup(a+1 + 4); // ai q q ci
C.dup(a+1 + 5); // ai ai q q ci
C.mulmod(); // cr2 q q ci
C.sub(); // -cr2 q ci
C.dup(q + 3); // q -cr2 q ci
C.dup(a + 4); // ar q -cr2 q ci
C.dup(a + 5); // br ar q -cr2 q ci
C.mulmod(); // cr1 -cr2 q ci
C.addmod(); // cr ci
}
function add1(a, q) {
C.dup(a+1); // im
C.dup(1 + q); // q
C.dup(2 + a); // re q im
C.push(1); // 1 re q im
C.addmod();
}
function cmp(a, b) {
C.dup(a);
C.dup(b);
C.eq();
C.dup(a+1);
C.dup(a+1);
C.and();
}
function rm(a) {
if (a>0) C.swap(a);
C.pop();
if (a>0) C.swap(a);
C.pop();
}
function double() {
C.label("double"); // xR, xI, yR, yI, zR zI, q
C.dup(4);
C.iszero();
C.dup(6);
C.iszero();
C.and();
C.jumpi("enddouble"); // X Y Z q
// Z3 = 2*Y*Z // Remove Z
mul(2, 4, 6); // yz X Y Z q
rm(6); // X Y yz q
add(4, 4, 6); // 2yz X Y yz q
rm(6); // X Y Z3 q
// A = X^2
square(0,6); // A X Y Z3 q
// B = Y^2 // Remove Y
square(4,8); // B A X Y Z3 q
rm(6); // A X B Z3 q
// C = B^2
square(4,8); // C A X B Z3 q
// D = (X+B)^2-A-C // Remove X, Remove B
add(4,6, 10); // X+B C A X B Z3 q
rm(6); // C A X+B B Z3 q
rm(6); // A X+B C Z3 q
square(2,8); // (X+B)^2 A X+B C Z3 q
rm(4); // A (X+B)^2 C Z3 q
sub(2, 0, 8); // (X+B)^2-A A (X+B)^2 C Z3 q
rm(4); // A (X+B)^2-A C Z3 q
sub(2, 4, 8); // (X+B)^2-A-C A (X+B)^2-A C Z3 q
rm(4); // A D C Z3 q
// D = D+D
add(2,2, 8); // D+D A D C Z3 q
rm(4); // A D C Z3 q
// E=A+A+A
add(0, 0, 8); // 2A A D C Z3 q
add(0, 2, 10); // 3A 2A A D C Z3 q
rm(4); // 2A 3A D C Z3 q
rm(0); // E D C Z3 q
// F=E^2
square(0, 8); // F E D C Z3 q
// X3= F - 2*D // Remove F
add(4, 4, 10); // 2D F E D C Z3 q
sub(2, 0, 12); // F-2D 2D F E D C Z3 q
rm(4); // 2D X3 E D C Z3 q
rm(0); // X3 E D C Z3 q
// Y3 = E * (D - X3) - 8 * C // Remove D C E
sub(4, 0, 10); // D-X3 X3 E D C Z3 q
rm(6); // X3 E D-X3 C Z3 q
mul(2, 4, 10); // E*(D-X3) X3 E D-X3 C Z3 q
rm(6); // X3 E E*(D-X3) C Z3 q
rm(2); // X3 E*(D-X3) C Z3 q
add(4, 4, 8); // 2C X3 E*(D-X3) C Z3 q
rm(6); // X3 E*(D-X3) 2C Z3 q
add(4, 4, 8); // 4C X3 E*(D-X3) 2C Z3 q
rm(6); // X3 E*(D-X3) 4C Z3 q
add(4, 4, 8); // 8C X3 E*(D-X3) 4C Z3 q
rm(6); // X3 E*(D-X3) 8C Z3 q
sub(2, 4, 8); // E*(D-X3)-8C X3 E*(D-X3) 8C Z3 q
rm(6); // X3 E*(D-X3) Y3 Z3 q
rm(2); // X3 Y3 Z3 q
C.label("enddouble");
C.returnCall();
}
function addPoint() { // p, xR, xI, yR, yI, zR zI, q
C.dup(0); // p p X2 Y2 Z2 q
C.push(savedP);
C.mstore();
C.iszero(); // X2 Y2 Z2 q
C.jumpi("endpadd");
C.dup(4);
C.iszero();
C.dup(6);
C.iszero();
C.and();
C.jumpi("returnP"); // X2 Y2 Z2 q
// lastZ3 = (Z2+1)^2 - Z2^2
add1(4, 6); // Z2+1 X2 Y2 Z2 q
square(0, 8); // (Z2+1)^2 Z2+1 X2 Y2 Z2 q
rm(2); // (Z2+1)^2 X2 Y2 Z2 q
square(6, 8); // Z2^2 (Z2+1)^2 X2 Y2 Z2 q
sub(2, 0, 10); // (Z2+1)^2-Z2^2 Z2^2 (Z2+1)^2 X2 Y2 Z2 q
saveZ3(); // Z2^2 (Z2+1)^2 X2 Y2 Z2 q
rm(2); // Z2^2 X2 Y2 Z2 q
// U2 = X2
// S2 = Y2 // Z2^2 U2 S2 Z2 q
// U1 = X1 * Z2^2
loadX(); // X1 Z2^2 U2 S2 Z2 q
mul(0, 2, 10); // X1*Z2^2 X1 Z2^2 U2 S2 Z2 q
rm(2); // X1*Z2^2 Z2^2 U2 S2 Z2 q
mul(2, 8, 10); // Z2^3 U1 Z2^2 U2 S2 Z2 q
rm(4); // U1 Z2^3 U2 S2 Z2 q
rm(8); // Z2^3 U2 S2 U1 q
// S1 = Y1 * Z1^3
loadY(); // Y1 Z2^3 U2 S2 U1 q
mul(0, 2, 10); // S1 Y1 Z2^3 U2 S2 U1 q
rm(4); // Y1 S1 U2 S2 U1 q
rm(0); // S1 U2 S2 U1 q
cmp(0, 4); // c1 S1 U2 S2 U1 q
cmp(3, 7); // c2 c1 S1 U2 S2 U1 q
C.and(); // c2&c1 S1 U2 S2 U1 q
C.jumpi("double1"); // S1 U2 S2 U1 q
// Returns the double
// H = U2-U1 // Remove U2
C.sub(4, 8, 10); // H S1 U2 S2 U1 q
rm(4); // S1 H S2 U1 q
// // r = 2 * (S2-S1) // Remove S2
C.sub(4, 4, 8); // S1-S2 S1 H S2 U1 q
rm(6); // S1 H S1-S2 U1 q
C.add(4, 4, 8); // 2*(S1-S2) S1 H S1-S2 U1 q
rm(6); // S1 H r U1 q
// I = (2 * H)^2
C.add(2, 2, 8); // 2*H S1 H r U1 q
C.square(0, 10); // (2*H)^2 2*H S1 H r U1 q
rm(2); // I S1 H r U1 q
// V = U1 * I
mul(8, 0, 10); // V I S1 H r U1 q
rm(10); // I S1 H r V q
// J = H * I // Remove I
mul(4, 0, 10); // J I S1 H r V q
rm(2); // J S1 H r V q
// X3 = r^2 - J - 2 * V
// S1J2 = (S1*J)*2 // Remove S1
mul(2, 0, 10); // S1*J J S1 H r V q
rm(4); // J S1*J H r V q
add(2,2, 10); // (S1*J)*2 J S1*J H r V q
rm(4); // J S1J2 H r V q
// X3 = r^2 - J - 2 * V
square(6, 10); // r^2 J S1J2 H r V q
sub(0, 2, 12); // r^2-J r^2 J S1J2 H r V q
rm(2); // r^2-J J S1J2 H r V q
rm(2); // r^2-J S1J2 H r V q
add(8, 8, 10); // 2*V r^2-J S1J2 H r V q
sub(2, 0, 12); // r^2-J-2*V 2*V r^2-J S1J2 H r V q
rm(4); // 2*V X3 S1J2 H r V q
rm(0); // X3 S1J2 H r V q
// Y3 = r * (V-X3)-S1J2
sub(8, 0, 10); // V-X3 X3 S1J2 H r V q
rm(10); // X3 S1J2 H r V-X3 q
mul(6, 8, 10); // r*(V-X3) X3 S1J2 H r V-X3 q
rm(8); // X3 S1J2 H r*(V-X3) V-X3 q
rm(8); // S1J2 H r*(V-X3) X3 q
sub(4, 0, 8); // Y3 S1J2 H r*(V-X3) X3 q
rm(6); // S1J2 H Y3 X3 q
rm(0); // H Y3 X3 q
// Z3 = lastZ * H
loadZ3(); // lastZ3 H Y3 X3 q
mul(0, 2, 8); // Z3 lastZ3 H Y3 X3 q
rm(4); // lastZ3 Z3 Y3 X3 q
rm(0); // Z3 Y3 X3 q
C.swap(1);
C.swap(5);
C.swap(1);
C.swap(4); // X3 Y3 Z3 q
// returns the point in memory
C.label("returnP"); // X Y Z q
rm(0);
rm(0);
rm(0);
C.push(0);
C.push(1);
loadX();
loadY();
C.jump("endpadd");
C.label("double1"); // S1 U2 S2 U1 q
rm(0);
rm(0);
rm(0);
rm(0);
C.push(0);
C.push(1);
loadX();
loadY();
C.jump("double");
C.label("endpadd");
C.returnCall();
function loadX() {
C.push(savedP);
C.mload(); // p
C.push(32);
C.mul(); // P*32
C.push(VAR_POINTS+32);
C.add(); // P*32+32
C.dup(); // P*32+32 P*32+32
C.mload(); // im P*32+32
C.swap(1); // P*32+32 im
C.push(0x20); // 32 P*32+32 im
C.sub(); // P*32 im
C.mload(); // re im
}
function loadY() {
C.push(savedP);
C.mload(); // p
C.push(32);
C.mul(); // P*32
C.push(VAR_POINTS+32*3);
C.add(); // P*32+32
C.dup(); // P*32+32 P*32+32
C.mload(); // im P*32+32
C.swap(1); // P*32+32 im
C.push(0x20); // 32 P*32+32 im
C.sub(); // P*32 im
C.mload(); // re im
}
function loadZ3() {
C.push(savedZ3+32);
C.mload(); // p
C.push(savedZ3);
C.mload();
}
function saveZ3() {
C.push(savedZ3);
C.mstore();
C.push(savedZ3+32);
C.mstore();
}
}
function affine() { // X Y Z q
// If Z2=0 return 0
C.label("affine");
C.dup(4);
C.dup(5 + 1);
C.or();
C.jumpi("notZero"); // X Y Z q
rm(0);
rm(0);
C.push(0);
C.push(0);
C.jmp("endAffine");
C.label("notZero");
inverse2(4,6); // Z_inv X Y Z q
square(2, 8); // Z2_inv Z_inv X Y Z q
mul(0, 2, 10); // Z3_inv Z2_inv Z_inv X Y Z q
rm(4); // Z2_inv Z3_inv X Y Z q
C.push(1);
C.push(0); // 1 Z2_inv Z3_inv X Y Z q
rm(10); // Z2_inv Z3_inv X Y 1 q
mul(2, 6, 10); // YI Z2_inv Z3_inv X Y 1 q
rm(8); // Z2_inv Z3_inv X YI 1 q
mul(0, 4, 10); // XI Z2_inv Z3_inv X YI 1 q
rm(6); // Z2_inv Z3_inv XI YI 1 q
rm(0); // Z3_inv XI YI 1 q
rm(0); // XI YI 1 q
C.label("endAffine");
C.returnCall();
}
function inverse2(a, q) {
C.dup(q); // q
C.dup(q + 1); // q q
C.push(2); // 2 q q
C.sub(); // q-2 q
C.dup(q + 2); // q q-2 q
C.dup(q + 3); // q q q-2 q
C.dup(a + 4); // ar q q q-2 q
C.dup(a + 5); // ar ar q q q-2 q
C.mulmod(); // t0 q q-2 q
C.dup(q + 4); // q t0 q q-2 q
C.dup(a+1 + 5); // ai q t0 q q-2 q
C.dup(a+1 + 6); // ai ai q t0 q q-2 q
C.mulmod(); // t1 t0 q q-2 q
C.addmod(); // t2 q-2 q
C.expmod(); // t3
C.dup(q + 1); // q t3
C.dup(q + 2); // q q t3
C.dup(q + 3); // q q q t3
C.dup(1); // t3 q q q t3
C.sub(); // -t3 q q t3
C.dup(a+1 + 3); // ai -t3 q q t3
C.mulmod(); // ii q t3
C.swap(2); // t3 q ii
C.dup(a + 3); // ar t3 q ii
C.mulmod(); // ir ii
}
function storeVals() {
C.push(VAR_POINTS); // p
for (let i=0; i<NPOINTS; i++) {
const MP = G2.affine(G2.mulScalar(P, bigInt(i)));
for (let j=0; j<2; j++) {
for (let k=0; k<2; k++) {
C.push(toHex256(MP[j][k])); // MP[0][0] p
C.dup(1); // p MP[0][0] p
C.mstore(); // p
C.push(32); // 32 p
C.add(); // p+32
}
}
}
}
}
module.exports.abi = [
{
"constant": true,
"inputs": [
{
"name": "escalar",
"type": "uint256"
}
],
"name": "mulexp",
"outputs": [
{
"name": "",
"type": "uint256"
},
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "pure",
"type": "function"
}
];
module.exports.createCode = createCode;

@ -0,0 +1,3 @@
include "../../circuits/eddsaposeidon.circom";
component main = EdDSAPoseidonVerifier();

@ -0,0 +1,4 @@
include "../../circuits/comparators.circom";
component main = GreaterEqThan(32);

@ -0,0 +1,4 @@
include "../../circuits/comparators.circom";
component main = GreaterThan(32);

@ -0,0 +1,4 @@
include "../../circuits/comparators.circom";
component main = LessEqThan(32);

@ -0,0 +1,31 @@
include "../../circuits/mux1.circom";
include "../../circuits/bitify.circom";
template Constants() {
var i;
signal output out[2];
out[0] <== 37;
out[1] <== 47;
}
template Main() {
var i;
signal private input selector;
signal output out;
component mux = Mux1();
component n2b = Num2Bits(1);
component cst = Constants();
selector ==> n2b.in;
n2b.out[0] ==> mux.s;
for (i=0; i<2; i++) {
cst.out[i] ==> mux.c[i];
}
mux.out ==> out;
}
component main = Main();

@ -0,0 +1,35 @@
include "../../circuits/mux2.circom";
include "../../circuits/bitify.circom";
template Constants() {
var i;
signal output out[4];
out[0] <== 37;
out[1] <== 47;
out[2] <== 53;
out[3] <== 71;
}
template Main() {
var i;
signal private input selector;
signal output out;
component mux = Mux2();
component n2b = Num2Bits(2);
component cst = Constants();
selector ==> n2b.in;
for (i=0; i<2; i++) {
n2b.out[i] ==> mux.s[i];
}
for (i=0; i<4; i++) {
cst.out[i] ==> mux.c[i];
}
mux.out ==> out;
}
component main = Main();

@ -36,7 +36,7 @@ describe("Sum test", () => {
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
});
it("Should create a comparison", async() => {
it("Should create a comparison lessthan", async() => {
const cirDef = await compiler(path.join(__dirname, "circuits", "lessthan.circom"));
const circuit = new snarkjs.Circuit(cirDef);
@ -74,4 +74,120 @@ describe("Sum test", () => {
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
});
it("Should create a comparison lesseqthan", async() => {
const cirDef = await compiler(path.join(__dirname, "circuits", "lesseqthan.circom"));
const circuit = new snarkjs.Circuit(cirDef);
let witness;
witness = circuit.calculateWitness({ "in[0]": "333", "in[1]": "444" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "1", "in[1]": "1" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "661", "in[1]": "660" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "0", "in[1]": "1" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "0", "in[1]": "444" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "1", "in[1]": "0" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "555", "in[1]": "0" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "0", "in[1]": "0" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
});
it("Should create a comparison greaterthan", async() => {
const cirDef = await compiler(path.join(__dirname, "circuits", "greaterthan.circom"));
const circuit = new snarkjs.Circuit(cirDef);
let witness;
witness = circuit.calculateWitness({ "in[0]": "333", "in[1]": "444" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "1", "in[1]": "1" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "661", "in[1]": "660" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "0", "in[1]": "1" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "0", "in[1]": "444" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "1", "in[1]": "0" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "555", "in[1]": "0" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "0", "in[1]": "0" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
});
it("Should create a comparison greatereqthan", async() => {
const cirDef = await compiler(path.join(__dirname, "circuits", "greatereqthan.circom"));
const circuit = new snarkjs.Circuit(cirDef);
console.log("NConstraints BalancesUpdater: " + circuit.nConstraints);
let witness;
witness = circuit.calculateWitness({ "in[0]": "333", "in[1]": "444" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "1", "in[1]": "1" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "661", "in[1]": "660" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "0", "in[1]": "1" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "0", "in[1]": "444" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(0)));
witness = circuit.calculateWitness({ "in[0]": "1", "in[1]": "0" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "555", "in[1]": "0" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
witness = circuit.calculateWitness({ "in[0]": "0", "in[1]": "0" });
assert(witness[0].equals(snarkjs.bigInt(1)));
assert(witness[1].equals(snarkjs.bigInt(1)));
});
});

@ -19,7 +19,7 @@ describe("EdDSA MiMC test", function () {
circuit = new snarkjs.Circuit(cirDef);
console.log("NConstrains EdDSA: " + circuit.nConstraints);
console.log("NConstrains EdDSA MiMC: " + circuit.nConstraints);
});
it("Sign a single number", async () => {

98
test/eddsaposeidon.js Normal file

@ -0,0 +1,98 @@
const chai = require("chai");
const path = require("path");
const snarkjs = require("snarkjs");
const compiler = require("circom");
const eddsa = require("../src/eddsa.js");
const assert = chai.assert;
const bigInt = snarkjs.bigInt;
describe("EdDSA Poseidon test", function () {
let circuit;
this.timeout(100000);
before( async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "eddsaposeidon_test.circom"));
circuit = new snarkjs.Circuit(cirDef);
console.log("NConstrains EdDSA Poseidon: " + circuit.nConstraints);
});
it("Sign a single number", async () => {
const msg = bigInt(1234);
const prvKey = Buffer.from("0001020304050607080900010203040506070809000102030405060708090001", "hex");
const pubKey = eddsa.prv2pub(prvKey);
const signature = eddsa.signPoseidon(prvKey, msg);
assert(eddsa.verifyPoseidon(msg, signature, pubKey));
const w = circuit.calculateWitness({
enabled: 1,
Ax: pubKey[0],
Ay: pubKey[1],
R8x: signature.R8[0],
R8y: signature.R8[1],
S: signature.S,
M: msg});
assert(circuit.checkWitness(w));
});
it("Detect Invalid signature", async () => {
const msg = bigInt(1234);
const prvKey = Buffer.from("0001020304050607080900010203040506070809000102030405060708090001", "hex");
const pubKey = eddsa.prv2pub(prvKey);
const signature = eddsa.signPoseidon(prvKey, msg);
assert(eddsa.verifyPoseidon(msg, signature, pubKey));
try {
circuit.calculateWitness({
enabled: 1,
Ax: pubKey[0],
Ay: pubKey[1],
R8x: signature.R8[0].add(bigInt(1)),
R8y: signature.R8[1],
S: signature.S,
M: msg});
assert(false);
} catch(err) {
assert.equal(err.message, "Constraint doesn't match: 1 != 0");
}
});
it("Test a dissabled circuit with a bad signature", async () => {
const msg = bigInt(1234);
const prvKey = Buffer.from("0001020304050607080900010203040506070809000102030405060708090001", "hex");
const pubKey = eddsa.prv2pub(prvKey);
const signature = eddsa.signPoseidon(prvKey, msg);
assert(eddsa.verifyPoseidon(msg, signature, pubKey));
const w = circuit.calculateWitness({
enabled: 0,
Ax: pubKey[0],
Ay: pubKey[1],
R8x: signature.R8[0].add(bigInt(1)),
R8y: signature.R8[1],
S: signature.S,
M: msg});
assert(circuit.checkWitness(w));
});
});

@ -1,4 +1,4 @@
const TestRPC = require("ganache-cli");
const ganache = require("ganache-cli");
const Web3 = require("web3");
const chai = require("chai");
const mimcGenContract = require("../src/mimc_gencontract.js");
@ -10,35 +10,31 @@ const log = (msg) => { if (process.env.MOCHA_VERBOSE) console.log(msg); };
const SEED = "mimc";
describe("MiMC Smart contract test", () => {
describe("MiMC Smart contract test", function () {
let testrpc;
let web3;
let mimc;
let accounts;
this.timeout(100000);
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");
web3 = new Web3(ganache.provider(), null, { transactionConfirmationBlocks: 1 });
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, 91)
data: mimcGenContract.createCode(SEED, 91),
arguments: []
}).send({
gas: 1500000,
gasPrice: '30000000000000',
from: accounts[0]
}).on("error", (error) => {
console.log("ERROR: "+error);
});
});

@ -9,7 +9,7 @@ const bigInt = snarkjs.bigInt;
describe("Mux4 test", () => {
it("Should create a constant multiplexer", async () => {
it("Should create a constant multiplexer 4", async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "mux4_1.circom"));
@ -50,7 +50,7 @@ describe("Mux4 test", () => {
}
});
it("Should create a constant multiplexer", async () => {
it("Should create a constant multiplexer 3", async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "mux3_1.circom"));
@ -74,6 +74,52 @@ describe("Mux4 test", () => {
assert(w[0].equals(bigInt(1)));
// console.log(i + " -> " + w[circuit.getSignalIdx("main.out")].toString());
assert(w[circuit.getSignalIdx("main.out")].equals(ct8[i]));
}
});
it("Should create a constant multiplexer 2", async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "mux2_1.circom"));
const circuit = new snarkjs.Circuit(cirDef);
console.log("NConstrains Mux2: " + circuit.nConstraints);
const ct8 = [
bigInt("37"),
bigInt("47"),
bigInt("53"),
bigInt("71"),
];
for (let i=0; i<4; i++) {
const w = circuit.calculateWitness({ "selector": i });
assert(w[0].equals(bigInt(1)));
// console.log(i + " -> " + w[circuit.getSignalIdx("main.out")].toString());
assert(w[circuit.getSignalIdx("main.out")].equals(ct8[i]));
}
});
it("Should create a constant multiplexer 1", async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "mux1_1.circom"));
const circuit = new snarkjs.Circuit(cirDef);
console.log("NConstrains Mux1: " + circuit.nConstraints);
const ct8 = [
bigInt("37"),
bigInt("47"),
];
for (let i=0; i<2; i++) {
const w = circuit.calculateWitness({ "selector": i });
assert(w[0].equals(bigInt(1)));
// console.log(i + " -> " + w[circuit.getSignalIdx("main.out")].toString());
assert(w[circuit.getSignalIdx("main.out")].equals(ct8[i]));
}

@ -1,4 +1,4 @@
const TestRPC = require("ganache-cli");
const ganache = require("ganache-cli");
const Web3 = require("web3");
const chai = require("chai");
const poseidonGenContract = require("../src/poseidon_gencontract.js");
@ -17,20 +17,10 @@ describe("Poseidon Smart contract test", () => {
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");
web3 = new Web3(ganache.provider(), null, { transactionConfirmationBlocks: 1 });
accounts = await web3.eth.getAccounts();
});
after(async () => testrpc.close());
it("Should deploy the contract", async () => {
const C = new web3.eth.Contract(poseidonGenContract.abi);