114 lines
3.9 KiB
JavaScript
114 lines
3.9 KiB
JavaScript
const chai = require("chai");
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const path = require("path");
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const createBlakeHash = require("blake-hash");
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const eddsa = require("../src/eddsa.js");
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const F = require("../src/babyjub.js").F;
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const assert = chai.assert;
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const tester = require("circom").tester;
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const utils = require("ffjavascript").utils;
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const Scalar = require("ffjavascript").Scalar;
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describe("Baby Jub test", function () {
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let circuitAdd;
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let circuitTest;
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let circuitPbk;
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this.timeout(100000);
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before( async() => {
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circuitAdd = await tester(path.join(__dirname, "circuits", "babyadd_tester.circom"));
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circuitTest = await tester(path.join(__dirname, "circuits", "babycheck_test.circom"));
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circuitPbk = await tester(path.join(__dirname, "circuits", "babypbk_test.circom"));
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});
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it("Should add point (0,1) and (0,1)", async () => {
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const input={
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x1: F.e(0),
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y1: F.e(1),
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x2: F.e(0),
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y2: F.e(1)
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};
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const w = await circuitAdd.calculateWitness(input, true);
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await circuitAdd.assertOut(w, {xout: F.e(0), yout: F.e(1)});
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});
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it("Should add 2 same numbers", async () => {
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const input={
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x1: F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
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y1: F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
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x2: F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
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y2: F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475")
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};
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const w = await circuitAdd.calculateWitness(input, true);
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await circuitAdd.assertOut(w, {
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xout: F.e("6890855772600357754907169075114257697580319025794532037257385534741338397365"),
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yout: F.e("4338620300185947561074059802482547481416142213883829469920100239455078257889")
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});
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});
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it("Should add 2 different numbers", async () => {
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const input={
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x1: F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
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y1: F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
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x2: F.e("16540640123574156134436876038791482806971768689494387082833631921987005038935"),
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y2: F.e("20819045374670962167435360035096875258406992893633759881276124905556507972311")
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};
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const w = await circuitAdd.calculateWitness(input, true);
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await circuitAdd.assertOut(w, {
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xout: F.e("7916061937171219682591368294088513039687205273691143098332585753343424131937"),
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yout: F.e("14035240266687799601661095864649209771790948434046947201833777492504781204499")
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});
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});
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it("Should check (0,1) is a valid point", async() => {
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const w = await circuitTest.calculateWitness({x: 0, y:1}, true);
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await circuitTest.checkConstraints(w);
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});
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it("Should check (1,0) is an invalid point", async() => {
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try {
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await circuitTest.calculateWitness({x: 1, y: 0}, true);
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assert(false, "Should be a valid point");
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} catch(err) {
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assert(/Constraint\sdoesn't\smatch(.*)168700\s!=\s1/.test(err.message) );
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}
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});
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it("Should extract the public key from the private one", async () => {
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const rawpvk = Buffer.from("0001020304050607080900010203040506070809000102030405060708090021", "hex");
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const pvk = eddsa.pruneBuffer(createBlakeHash("blake512").update(rawpvk).digest().slice(0,32));
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const S = Scalar.shr(utils.leBuff2int(pvk), 3);
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const A = eddsa.prv2pub(rawpvk);
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const input = {
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in : S
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};
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const w = await circuitPbk.calculateWitness(input, true);
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await circuitPbk.assertOut(w, {Ax : A[0], Ay: A[1]});
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await circuitPbk.checkConstraints(w);
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});
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});
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