50 lines
1.1 KiB
JavaScript
50 lines
1.1 KiB
JavaScript
const path = require("path");
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const bigInt = require("big-integer");
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const tester = require("circom").tester;
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const babyJub = require("../src/babyjub.js");
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const pedersen = require("../src/pedersenHash.js");
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describe("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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circuit = await tester(path.join(__dirname, "circuits", "pedersen2_test.circom"));
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});
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it("Should pedersen at zero", async () => {
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let w;
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w = await circuit.calculateWitness({ in: 0});
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const b = Buffer.alloc(32);
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const h = pedersen.hash(b);
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const hP = babyJub.unpackPoint(h);
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await circuit.assertOut(w, {out: hP});
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});
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it("Should pedersen with 253 ones", async () => {
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let w;
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const n = bigInt.one.shiftLeft(253).minus(bigInt.one);
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w = await circuit.calculateWitness({ in: n});
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const b = Buffer.alloc(32);
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for (let i=0; i<31; i++) b[i] = 0xFF;
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b[31] = 0x1F;
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const h = pedersen.hash(b);
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const hP = babyJub.unpackPoint(h);
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await circuit.assertOut(w, {out: hP});
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});
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});
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