106 lines
3.6 KiB
JavaScript
106 lines
3.6 KiB
JavaScript
const chai = require("chai");
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const path = require("path");
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const snarkjs = require("snarkjs");
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const compiler = require("circom");
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const assert = chai.assert;
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const bigInt = snarkjs.bigInt;
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const babyJub = require("../src/babyjub.js");
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const PBASE =
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[
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[ bigInt( "6842263847932328569390632736104801120816056295876316310227967232893658007436"),
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bigInt("10520112236148895828506510766039255961372323270202387671483666293012156799229")],
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[ bigInt( "7512553369533424708326990019377586455744651641787163924108944444109352325495"),
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bigInt( "242060483180498555826438209654403949979206323274480625257315595534333598496")],
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[ bigInt( "480315709862415282411588615813248553518720286084247594626493599605932342246"),
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bigInt("15016559215090999873142530067666085992648246670781771102893391410239675444873")],
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[ bigInt( "8311398801616893527636419786153024398643144699386228070202625261657263599049"),
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bigInt("11125962584728296601438821974884453267303385157860713577195820780853779600315")],
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[ bigInt( "1924118814882677827825936037840538695314492559747259292440881566152665343441"),
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bigInt("17232376423406964731689089286495480735310130852288107159412732879983310795144")]
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];
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describe("Double Pedersen test", function() {
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let circuit;
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this.timeout(100000);
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before( async() => {
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const cirDef = await compiler(path.join(__dirname, "circuits", "pedersen_test.circom"));
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circuit = new snarkjs.Circuit(cirDef);
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console.log("NConstrains: " + circuit.nConstraints);
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});
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it("Should pedersen at zero", async () => {
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let w, xout, yout;
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w = circuit.calculateWitness({ in: ["0", "0"]});
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xout = w[circuit.getSignalIdx("main.out[0]")];
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yout = w[circuit.getSignalIdx("main.out[1]")];
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assert(xout.equals("0"));
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assert(yout.equals("1"));
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});
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it("Should pedersen at one first generator", async () => {
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let w, xout, yout;
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w = circuit.calculateWitness({ in: ["1", "0"]});
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xout = bigInt(w[circuit.getSignalIdx("main.out[0]")]);
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yout = bigInt(w[circuit.getSignalIdx("main.out[1]")]);
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assert(xout.equals(PBASE[0][0]));
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assert(yout.equals(PBASE[0][1]));
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});
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it("Should pedersen at one second generator", async () => {
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let w, xout, yout;
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w = circuit.calculateWitness({ in: ["0", "1"]});
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xout = w[circuit.getSignalIdx("main.out[0]")];
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yout = w[circuit.getSignalIdx("main.out[1]")];
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assert(xout.equals(PBASE[1][0]));
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assert(yout.equals(PBASE[1][1]));
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});
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it("Should pedersen at mixed generators", async () => {
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let w, xout, yout;
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w = circuit.calculateWitness({ in: ["3", "7"]});
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xout = w[circuit.getSignalIdx("main.out[0]")];
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yout = w[circuit.getSignalIdx("main.out[1]")];
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const r = babyJub.addPoint(
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babyJub.mulPointEscalar(PBASE[0], 3),
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babyJub.mulPointEscalar(PBASE[1], 7)
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);
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assert(xout.equals(r[0]));
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assert(yout.equals(r[1]));
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});
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it("Should pedersen all ones", async () => {
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let w, xout, yout;
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const allOnes = bigInt("1").shl(250).sub(bigInt("1"));
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w = circuit.calculateWitness({ in: [allOnes, allOnes]});
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xout = w[circuit.getSignalIdx("main.out[0]")];
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yout = w[circuit.getSignalIdx("main.out[1]")];
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const r2 = babyJub.addPoint(
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babyJub.mulPointEscalar(PBASE[0], allOnes),
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babyJub.mulPointEscalar(PBASE[1], allOnes)
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);
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assert(xout.equals(r2[0]));
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assert(yout.equals(r2[1]));
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});
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});
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