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Alias Check and Babyjub adapted

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This commit is contained in:
Jordi Baylina 2019-12-12 16:49:58 +01:00
parent d5bca9feb6
commit 30c6cf55b9
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GPG Key ID: 7480C80C1BE43112
6 changed files with 159 additions and 84 deletions
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6
circuits/escalarmulfix.circom
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@ -176,6 +176,9 @@ template SegmentMulFix(nWindows) {
cadders[i].in1[0] <== cadders[i-1].out[0];
cadders[i].in1[1] <== cadders[i-1].out[1];
}
for (j=0; j<3; j++) {
windows[i].in[j] <== e[3*i+j];
}
if (i<nWindows-1) {
cadders[i].in2[0] <== windows[i].out8[0];
cadders[i].in2[1] <== windows[i].out8[1];
@ -185,9 +188,6 @@ template SegmentMulFix(nWindows) {
cadders[i].in2[0] <== dblLast.out[0];
cadders[i].in2[1] <== dblLast.out[1];
}
for (j=0; j<3; j++) {
windows[i].in[j] <== e[3*i+j];
}
}
for (i=0; i<nWindows; i++) {

87
src/utils.js Normal file
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@ -0,0 +1,87 @@
const bigInt = require("big-integer");
module.exports.leBuff2int = leBuff2int;
module.exports.leInt2Buff = leInt2Buff;
module.exports.beBuff2int = beBuff2int;
module.exports.beInt2Buff = beInt2Buff;
module.exports.stringifyBigInts = stringifyBigInts;
module.exports.unstringifyBigInts = unstringifyBigInts;
function leBuff2int (buff) {
let res = bigInt.zero;
for (let i=0; i<buff.length; i++) {
const n = bigInt(buff[i]);
res = res.add(n.shiftLeft(i*8));
}
return res;
}
function leInt2Buff(n, len) {
let r = n;
let o =0;
const buff = Buffer.alloc(len);
while ((r.gt(bigInt.zero))&&(o<buff.length)) {
let c = Number(r.and(bigInt(255)));
buff[o] = c;
o++;
r = r.shiftRight(8);
}
if (r.gt(bigInt.zero)) throw new Error("Number does not feed in buffer");
return buff;
}
function beBuff2int (buff) {
let res = bigInt.zero;
for (let i=0; i<buff.length; i++) {
const n = bigInt(buff[buff.length - i - 1]);
res = res.add(n.shiftLeft(i*8));
}
return res;
}
function beInt2Buff(n, len) {
let r = n;
let o =len-1;
const buff = Buffer.alloc(len);
while ((r.greater(bigInt.zero))&&(o>=0)) {
let c = Number(r.and(bigInt(255)));
buff[o] = c;
o--;
r = r.shiftRight(8);
}
if (r.gt(bigInt.zero)) throw new Error("Number does not feed in buffer");
return buff;
}
function stringifyBigInts(o) {
if ((typeof(o) == "bigint") || o.isZero !== undefined) {
return o.toString(10);
} else if (Array.isArray(o)) {
return o.map(stringifyBigInts);
} else if (typeof o == "object") {
const res = {};
for (let k in o) {
res[k] = stringifyBigInts(o[k]);
}
return res;
} else {
return o;
}
}
function unstringifyBigInts(o) {
if ((typeof(o) == "string") && (/^[0-9]+$/.test(o) )) {
return bigInt(o);
} else if (Array.isArray(o)) {
return o.map(unstringifyBigInts);
} else if (typeof o == "object") {
const res = {};
for (let k in o) {
res[k] = unstringifyBigInts(o[k]);
}
return res;
} else {
return o;
}
}

36
test/aliascheck.js
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@ -1,11 +1,12 @@
const chai = require("chai");
const path = require("path");
const snarkjs = require("snarkjs");
const compiler = require("circom");
const assert = chai.assert;
const bigInt = snarkjs.bigInt;
const bigInt = require("big-integer");
const tester = require("circom").tester;
function print(circuit, w, s) {
console.log(s + ": " + w[circuit.getSignalIdx(s)]);
@ -14,7 +15,7 @@ function print(circuit, w, s) {
function getBits(v, n) {
const res = [];
for (let i=0; i<n; i++) {
if (v.shr(i).isOdd()) {
if (v.shiftRight(i).isOdd()) {
res.push(bigInt.one);
} else {
res.push(bigInt.zero);
@ -25,46 +26,45 @@ function getBits(v, n) {
const q = bigInt("21888242871839275222246405745257275088548364400416034343698204186575808495617");
describe("Aliascheck test", () => {
let circuit;
describe("Aliascheck test", function () {
this.timeout(100000);
let cir;
before( async() => {
const cirDef = await compiler(path.join(__dirname, "circuits", "aliascheck_test.circom"));
circuit = new snarkjs.Circuit(cirDef);
console.log("NConstrains: " + circuit.nConstraints);
cir = await tester(path.join(__dirname, "circuits", "aliascheck_test.circom"));
});
it("Satisfy the aliastest 0", async () => {
const inp = getBits(bigInt.zero, 254);
circuit.calculateWitness({in: inp});
await cir.calculateWitness({in: inp});
});
it("Satisfy the aliastest 3", async () => {
const inp = getBits(bigInt(3), 254);
circuit.calculateWitness({in: inp});
await cir.calculateWitness({in: inp});
});
it("Satisfy the aliastest q-1", async () => {
const inp = getBits(q.sub(bigInt.one), 254);
circuit.calculateWitness({in: inp});
const inp = getBits(q.minus(bigInt.one), 254);
await cir.calculateWitness({in: inp});
});
it("Nhot not satisfy an input of q", async () => {
it("Should not satisfy an input of q", async () => {
const inp = getBits(q, 254);
try {
circuit.calculateWitness({in: inp});
await cir.calculateWitness({in: inp});
assert(false);
} catch(err) {
assert(/Constraint\sdoesn't\smatch(.*)1\s!=\s0/.test(err.message) );
}
});
it("Nhot not satisfy all ones", async () => {
it("Should not satisfy all ones", async () => {
const inp = getBits(bigInt(1).shl(254).sub(bigInt(1)), 254);
const inp = getBits(bigInt(1).shiftLeft(254).minus(bigInt.one), 254);
try {
circuit.calculateWitness({in: inp});
await cir.calculateWitness({in: inp});
assert(false);
} catch(err) {
assert(/Constraint\sdoesn't\smatch(.*)1\s!=\s0/.test(err.message) );

106
test/babyjub.js
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@ -1,103 +1,89 @@
const chai = require("chai");
const path = require("path");
const snarkjs = require("snarkjs");
const compiler = require("circom");
const createBlakeHash = require("blake-hash");
const eddsa = require("../src/eddsa.js");
const assert = chai.assert;
const bigInt = require("snarkjs").bigInt;
const bigInt = require("big-integer");
const tester = require("circom").tester;
const utils = require("../src/utils.js");
describe("Baby Jub test", function () {
let circuitAdd;
let circuitTest;
let circuitPbk;
this.timeout(100000);
before( async() => {
const cirDefAdd = await compiler(path.join(__dirname, "circuits", "babyadd_tester.circom"));
circuitAdd = new snarkjs.Circuit(cirDefAdd);
console.log("NConstrains BabyAdd: " + circuitAdd.nConstraints);
circuitAdd = await tester(path.join(__dirname, "circuits", "babyadd_tester.circom"));
const cirDefTest = await compiler(path.join(__dirname, "circuits", "babycheck_test.circom"));
circuitTest = new snarkjs.Circuit(cirDefTest);
console.log("NConstrains BabyTest: " + circuitTest.nConstraints);
const cirDefPbk = await compiler(path.join(__dirname, "circuits", "babypbk_test.circom"));
circuitPbk = new snarkjs.Circuit(cirDefPbk);
console.log("NConstrains BabyPbk: " + circuitPbk.nConstraints);
circuitTest = await tester(path.join(__dirname, "circuits", "babycheck_test.circom"));
circuitPbk = await tester(path.join(__dirname, "circuits", "babypbk_test.circom"));
});
it("Should add point (0,1) and (0,1)", async () => {
const input={
x1: snarkjs.bigInt(0),
y1: snarkjs.bigInt(1),
x2: snarkjs.bigInt(0),
y2: snarkjs.bigInt(1)
x1: bigInt(0),
y1: bigInt(1),
x2: bigInt(0),
y2: bigInt(1)
};
const w = circuitAdd.calculateWitness(input);
const w = await circuitAdd.calculateWitness(input);
const xout = w[circuitAdd.getSignalIdx("main.xout")];
const yout = w[circuitAdd.getSignalIdx("main.yout")];
assert(xout.equals(0));
assert(yout.equals(1));
await circuitAdd.assertOut(w, {xout: bigInt(0), yout: bigInt(1)});
});
it("Should add 2 same numbers", async () => {
const input={
x1: snarkjs.bigInt("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
y1: snarkjs.bigInt("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
x2: snarkjs.bigInt("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
y2: snarkjs.bigInt("2626589144620713026669568689430873010625803728049924121243784502389097019475")
x1: bigInt("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
y1: bigInt("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
x2: bigInt("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
y2: bigInt("2626589144620713026669568689430873010625803728049924121243784502389097019475")
};
const w = circuitAdd.calculateWitness(input);
const w = await circuitAdd.calculateWitness(input);
const xout = w[circuitAdd.getSignalIdx("main.xout")];
const yout = w[circuitAdd.getSignalIdx("main.yout")];
await circuitAdd.assertOut(w, {
xout: bigInt("6890855772600357754907169075114257697580319025794532037257385534741338397365"),
yout: bigInt("4338620300185947561074059802482547481416142213883829469920100239455078257889")
});
assert(xout.equals(snarkjs.bigInt("6890855772600357754907169075114257697580319025794532037257385534741338397365")));
assert(yout.equals(snarkjs.bigInt("4338620300185947561074059802482547481416142213883829469920100239455078257889")));
});
it("Should add 2 different numbers", async () => {
const input={
x1: snarkjs.bigInt("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
y1: snarkjs.bigInt("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
x2: snarkjs.bigInt("16540640123574156134436876038791482806971768689494387082833631921987005038935"),
y2: snarkjs.bigInt("20819045374670962167435360035096875258406992893633759881276124905556507972311")
x1: bigInt("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
y1: bigInt("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
x2: bigInt("16540640123574156134436876038791482806971768689494387082833631921987005038935"),
y2: bigInt("20819045374670962167435360035096875258406992893633759881276124905556507972311")
};
const w = circuitAdd.calculateWitness(input);
const w = await circuitAdd.calculateWitness(input);
const xout = w[circuitAdd.getSignalIdx("main.xout")];
const yout = w[circuitAdd.getSignalIdx("main.yout")];
/*
console.log(xout.toString());
console.log(yout.toString());
*/
assert(xout.equals(snarkjs.bigInt("7916061937171219682591368294088513039687205273691143098332585753343424131937")));
assert(yout.equals(snarkjs.bigInt("14035240266687799601661095864649209771790948434046947201833777492504781204499")));
await circuitAdd.assertOut(w, {
xout: bigInt("7916061937171219682591368294088513039687205273691143098332585753343424131937"),
yout: bigInt("14035240266687799601661095864649209771790948434046947201833777492504781204499")
});
it("Should check 0 is a valid poiny", async() => {
const w = circuitTest.calculateWitness({x: 0, y:1});
assert(circuitTest.checkWitness(w));
});
it("Should check 0 is an invalid poiny", async() => {
it("Should check (0,1) is a valid poiny", async() => {
const w = await circuitTest.calculateWitness({x: 0, y:1});
// TODO Check constraints
// assert(circuitTest.checkWitness(w));
});
it("Should check (1,0) is an invalid point", async() => {
try {
circuitTest.calculateWitness({x: 1, y: 0});
await circuitTest.calculateWitness({x: 1, y: 0});
assert(false, "Should be a valid point");
} catch(err) {
assert(/Constraint\sdoesn't\smatch(.*)168700\s!=\s1/.test(err.message) );
@ -108,18 +94,20 @@ describe("Baby Jub test", function () {
const rawpvk = Buffer.from("0001020304050607080900010203040506070809000102030405060708090021", "hex");
const pvk = eddsa.pruneBuffer(createBlakeHash("blake512").update(rawpvk).digest().slice(0,32));
const S = bigInt.leBuff2int(pvk).shr(3);
const S = utils.leBuff2int(pvk).shiftRight(3);
const A = eddsa.prv2pub(rawpvk);
const input = {
in : S,
Ax : A[0],
Ay : A[1]
}
in : S
};
const w = circuitPbk.calculateWitness(input);
assert(circuitPbk.checkWitness(w));
const w = await circuitPbk.calculateWitness(input);
await circuitPbk.assertOut(w, {Ax : A[0], Ay: A[1]});
// TODO Check constraints
// assert(circuitPbk.checkWitness(w));
});
});

2
test/circuits/in.json
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@ -1 +1 @@
{"in":[0,1,1,0,0,0,0,1,0,1,1,0,0,0,1,0,0,1,1,0,0,0,1,1,0,1,1,0,0,1,0,0,0,1,1,0,0,0,1,0,0,1,1,0,0,0,1,1,0,1,1,0,0,1,0,0,0,1,1,0,0,1,0,1,0,1,1,0,0,0,1,1,0,1,1,0,0,1,0,0,0,1,1,0,0,1,0,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,0,0,0,1,1,0,0,1,0,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,1,0,1,1,0,0,1,0,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,1,0,1,1,0,1,0,0,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,1,0,1,1,0,1,0,0,0,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,1,0,1,1,0,1,0,0,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,1,0,0,1,1,0,1,0,0,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,1,0,0,1,1,0,1,0,1,1,0,1,1,0,1,0,0,1,0,1,1,0,1,0,1,0,0,1,1,0,1,0,1,1,0,1,1,0,1,1,0,0,0,1,1,0,1,0,1,0,0,1,1,0,1,0,1,1,0,1,1,0,1,1,0,0,0,1,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,1,0,0,0,1,1,0,1,1,0,1,0,1,1,0,1,1,1,0,0,1,1,0,1,1,0,0,0,1,1,0,1,1,0,1,0,1,1,0,1,1,1,0,0,1,1,0,1,1,1,1,0,1,1,0,1,1,0,1,0,1,1,0,1,1,1,0,0,1,1,0,1,1,1,1,0,1,1,1,0,0,0,0,0,1,1,0,1,1,1,0,0,1,1,0,1,1,1,1,0,1,1,1,0,0,0,0,0,1,1,1,0,0,0,1]}
{"in":"3876493977147089964395646989418653640709890493868463039177063670701706079087","Ax":"7544364404313686108640297486043592597084907953513982229886192880342666171487","Ay":"2721089742146723067451923493488918617350881493409568860627491866568993834336"}

8
test/sha256.js
View File

@ -7,7 +7,7 @@ const assert = chai.assert;
const sha256 = require("./helpers/sha256");
const c_tester = require("circom").c_tester;
const tester = require("circom").tester;
// const printSignal = require("./helpers/printsignal");
@ -50,7 +50,7 @@ describe("SHA256 test", function () {
});
it("Should calculate a hash of 1 compressor", async () => {
const cir = await c_tester(path.join(__dirname, "circuits", "sha256_2_test.circom"));
const cir = await tester(path.join(__dirname, "circuits", "sha256_2_test.circom"));
const witness = await cir.calculateWitness({ "a": "1", "b": "2" });
@ -71,7 +71,7 @@ describe("SHA256 test", function () {
}).timeout(1000000);
it("Should calculate a hash of 2 compressor", async () => {
const cir = await c_tester(path.join(__dirname, "circuits", "sha256_test512.circom"));
const cir = await tester(path.join(__dirname, "circuits", "sha256_test512.circom"));
const b = new Buffer.alloc(64);
for (let i=0; i<64; i++) {
@ -92,7 +92,7 @@ describe("SHA256 test", function () {
}).timeout(1000000);
it ("Should calculate a hash of 2 compressor", async () => {
const cir = await c_tester(path.join(__dirname, "circuits", "sha256_test448.circom"));
const cir = await tester(path.join(__dirname, "circuits", "sha256_test448.circom"));
const testStr = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";