98 lines
2.6 KiB
JavaScript
98 lines
2.6 KiB
JavaScript
const chai = require("chai");
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const path = require("path");
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const tester = require("circom").tester;
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const Fr = require("ffjavascript").bn128.Fr;
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const eddsa = require("../src/eddsa.js");
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const assert = chai.assert;
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describe("EdDSA MiMC 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", "eddsamimc_test.circom"));
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});
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it("Sign a single number", async () => {
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const msg = Fr.e(1234);
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const prvKey = Buffer.from("0001020304050607080900010203040506070809000102030405060708090001", "hex");
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const pubKey = eddsa.prv2pub(prvKey);
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const signature = eddsa.signMiMC(prvKey, msg);
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assert(eddsa.verifyMiMC(msg, signature, pubKey));
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const w = await circuit.calculateWitness({
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enabled: 1,
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Ax: pubKey[0],
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Ay: pubKey[1],
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R8x: signature.R8[0],
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R8y: signature.R8[1],
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S: signature.S,
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M: msg}, true);
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await circuit.checkConstraints(w);
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});
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it("Detect Invalid signature", async () => {
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const msg = Fr.e(1234);
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const prvKey = Buffer.from("0001020304050607080900010203040506070809000102030405060708090001", "hex");
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const pubKey = eddsa.prv2pub(prvKey);
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const signature = eddsa.signMiMC(prvKey, msg);
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assert(eddsa.verifyMiMC(msg, signature, pubKey));
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try {
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const w = await circuit.calculateWitness({
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enabled: 1,
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Ax: pubKey[0],
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Ay: pubKey[1],
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R8x: Fr.add(signature.R8[0], Fr.e(1)),
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R8y: signature.R8[1],
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S: signature.S,
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M: msg}, true);
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assert(false);
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} catch(err) {
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assert(/Constraint\sdoesn't\smatch(.*)1\s!=\s0/.test(err.message) );
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}
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});
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it("Test a dissabled circuit with a bad signature", async () => {
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const msg = Fr.e(1234);
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const prvKey = Buffer.from("0001020304050607080900010203040506070809000102030405060708090001", "hex");
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const pubKey = eddsa.prv2pub(prvKey);
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const signature = eddsa.signMiMC(prvKey, msg);
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assert(eddsa.verifyMiMC(msg, signature, pubKey));
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const w = await circuit.calculateWitness({
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enabled: 0,
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Ax: pubKey[0],
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Ay: pubKey[1],
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R8x: Fr.add(signature.R8[0], Fr.e(1)),
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R8y: signature.R8[1],
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S: signature.S,
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M: msg}, true);
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await circuit.checkConstraints(w);
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});
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});
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