1const chai = require("chai");
 2const snarkjs = require("snarkjs");
 3
 4const eddsa = require("../src/eddsa.js");
 5const babyJub = require("../src/babyjub.js");
 6
 7const assert = chai.assert;
 8
 9const bigInt = snarkjs.bigInt;
10
11describe("EdDSA js test", function () {
12
13    this.timeout(100000);
14
15    it("Sign a single 10 bytes from 0 to 9", () => {
16        const msgBuf = Buffer.from("00010203040506070809", "hex");
17        const msg = bigInt.leBuff2int(msgBuf);
18
19        //  const prvKey = crypto.randomBytes(32);
20
21        const prvKey = Buffer.from("0001020304050607080900010203040506070809000102030405060708090001", "hex");
22
23        const pubKey = eddsa.prv2pub(prvKey);
24
25        assert.equal(pubKey[0].toString(),
26            "13277427435165878497778222415993513565335242147425444199013288855685581939618");
27        assert.equal(pubKey[1].toString(),
28            "13622229784656158136036771217484571176836296686641868549125388198837476602820");
29
30        const pPubKey = babyJub.packPoint(pubKey);
31
32        const signature = eddsa.signMiMC(prvKey, msg);
33        assert.equal(signature.R8[0].toString(),
34            "11384336176656855268977457483345535180380036354188103142384839473266348197733");
35        assert.equal(signature.R8[1].toString(),
36            "15383486972088797283337779941324724402501462225528836549661220478783371668959");
37        assert.equal(signature.S.toString(),
38            "2523202440825208709475937830811065542425109372212752003460238913256192595070");
39
40        const pSignature = eddsa.packSignature(signature);
41        assert.equal(pSignature.toString("hex"), ""+
42            "dfedb4315d3f2eb4de2d3c510d7a987dcab67089c8ace06308827bf5bcbe02a2"+
43            "7ed40dab29bf993c928e789d007387998901a24913d44fddb64b1f21fc149405");
44
45        const uSignature = eddsa.unpackSignature(pSignature);
46        assert(eddsa.verifyMiMC(msg, uSignature, pubKey));
47
48    });
49});