564 lines
21 KiB
JavaScript
564 lines
21 KiB
JavaScript
import * as fc from 'fast-check';
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import { secp256k1, schnorr } from '../lib/esm/secp256k1.js';
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import { Fp } from '../lib/esm/abstract/modular.js';
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import { readFileSync } from 'fs';
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import { default as ecdsa } from './vectors/ecdsa.json' assert { type: 'json' };
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import { default as ecdh } from './vectors/ecdh.json' assert { type: 'json' };
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import { default as privates } from './vectors/privates.json' assert { type: 'json' };
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import { default as points } from './vectors/points.json' assert { type: 'json' };
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import { default as wp } from './vectors/wychenproof.json' assert { type: 'json' };
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import { should, describe } from 'micro-should';
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import { deepStrictEqual, throws } from 'assert';
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import { hexToBytes, bytesToHex } from '@noble/hashes/utils';
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const hex = bytesToHex;
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const secp = secp256k1;
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const Point = secp.ProjectivePoint;
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const privatesTxt = readFileSync('./test/vectors/privates-2.txt', 'utf-8');
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const schCsv = readFileSync('./test/vectors/schnorr.csv', 'utf-8');
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const FC_BIGINT = fc.bigInt(1n + 1n, secp.CURVE.n - 1n);
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// prettier-ignore
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const INVALID_ITEMS = ['deadbeef', Math.pow(2, 53), [1], 'xyzxyzxyxyzxyzxyxyzxyzxyxyzxyzxyxyzxyzxyxyzxyzxyxyzxyzxyxyzxyzxy', secp.CURVE.n + 2n];
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const toBEHex = (n) => n.toString(16).padStart(64, '0');
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function hexToNumber(hex) {
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if (typeof hex !== 'string') {
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throw new TypeError('hexToNumber: expected string, got ' + typeof hex);
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}
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// Big Endian
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return BigInt(`0x${hex}`);
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}
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describe('secp256k1', () => {
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should('getPublicKey()', () => {
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const data = privatesTxt
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.split('\n')
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.filter((line) => line)
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.map((line) => line.split(':'));
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for (let [priv, x, y] of data) {
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const point = Point.fromPrivateKey(BigInt(priv));
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deepStrictEqual(toBEHex(point.x), x);
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deepStrictEqual(toBEHex(point.y), y);
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const point2 = Point.fromHex(secp.getPublicKey(toBEHex(BigInt(priv))));
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deepStrictEqual(toBEHex(point2.x), x);
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deepStrictEqual(toBEHex(point2.y), y);
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const point3 = Point.fromHex(secp.getPublicKey(hexToBytes(toBEHex(BigInt(priv)))));
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deepStrictEqual(toBEHex(point3.x), x);
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deepStrictEqual(toBEHex(point3.y), y);
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}
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});
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should('getPublicKey() rejects invalid keys', () => {
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for (const item of INVALID_ITEMS) {
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throws(() => secp.getPublicKey(item));
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}
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});
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should('precompute', () => {
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secp.utils.precompute(4);
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const data = privatesTxt
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.split('\n')
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.filter((line) => line)
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.map((line) => line.split(':'));
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for (let [priv, x, y] of data) {
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const point = Point.fromPrivateKey(BigInt(priv));
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deepStrictEqual(toBEHex(point.x), x);
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deepStrictEqual(toBEHex(point.y), y);
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const point2 = Point.fromHex(secp.getPublicKey(toBEHex(BigInt(priv))));
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deepStrictEqual(toBEHex(point2.x), x);
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deepStrictEqual(toBEHex(point2.y), y);
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const point3 = Point.fromHex(secp.getPublicKey(hexToBytes(toBEHex(BigInt(priv)))));
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deepStrictEqual(toBEHex(point3.x), x);
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deepStrictEqual(toBEHex(point3.y), y);
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}
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});
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describe('Point', () => {
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should('fromHex() assertValidity', () => {
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for (const vector of points.valid.isPoint) {
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const { P, expected } = vector;
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if (expected) {
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Point.fromHex(P);
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} else {
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throws(() => Point.fromHex(P));
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}
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}
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});
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should('.fromPrivateKey()', () => {
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for (const vector of points.valid.pointFromScalar) {
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const { d, expected } = vector;
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let p = Point.fromPrivateKey(d);
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deepStrictEqual(p.toHex(true), expected);
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}
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});
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should('#toHex(compressed)', () => {
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for (const vector of points.valid.pointCompress) {
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const { P, compress, expected } = vector;
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let p = Point.fromHex(P);
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deepStrictEqual(p.toHex(compress), expected);
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}
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});
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should('#toHex() roundtrip (failed case)', () => {
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const point1 =
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Point.fromPrivateKey(
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88572218780422190464634044548753414301110513745532121983949500266768436236425n
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);
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// const hex = point1.toHex(true);
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// deepStrictEqual(Point.fromHex(hex).toHex(true), hex);
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});
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should('#toHex() roundtrip', () => {
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fc.assert(
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fc.property(FC_BIGINT, (x) => {
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const point1 = Point.fromPrivateKey(x);
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const hex = point1.toHex(true);
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deepStrictEqual(Point.fromHex(hex).toHex(true), hex);
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})
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);
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});
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should('#add(other)', () => {
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for (const vector of points.valid.pointAdd) {
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const { P, Q, expected } = vector;
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let p = Point.fromHex(P);
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let q = Point.fromHex(Q);
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if (expected) {
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deepStrictEqual(p.add(q).toHex(true), expected);
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} else {
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if (!p.equals(q.negate())) {
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throws(() => p.add(q).toHex(true));
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}
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}
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}
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});
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should('#multiply(privateKey)', () => {
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for (const vector of points.valid.pointMultiply) {
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const { P, d, expected } = vector;
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const p = Point.fromHex(P);
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if (expected) {
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deepStrictEqual(p.multiply(hexToNumber(d)).toHex(true), expected);
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} else {
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throws(() => {
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p.multiply(hexToNumber(d)).toHex(true);
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});
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}
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}
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for (const vector of points.invalid.pointMultiply) {
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const { P, d } = vector;
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if (hexToNumber(d) < secp.CURVE.n) {
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throws(() => {
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const p = Point.fromHex(P);
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p.multiply(hexToNumber(d)).toHex(true);
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});
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}
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}
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for (const num of [0n, 0, -1n, -1, 1.1]) {
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throws(() => Point.BASE.multiply(num));
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}
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});
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});
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// multiply() should equal multiplyUnsafe()
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// should('ProjectivePoint#multiplyUnsafe', () => {
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// const p0 = new secp.ProjectivePoint(
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// 55066263022277343669578718895168534326250603453777594175500187360389116729240n,
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// 32670510020758816978083085130507043184471273380659243275938904335757337482424n,
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// 1n
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// );
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// const z = 106011723082030650010038151861333186846790370053628296836951575624442507889495n;
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// console.log(p0.multiply(z));
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// console.log(secp.ProjectivePoint.normalizeZ([p0.multiplyUnsafe(z)])[0])
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// });
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describe('Signature', () => {
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should('.fromCompactHex() roundtrip', () => {
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fc.assert(
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fc.property(FC_BIGINT, FC_BIGINT, (r, s) => {
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const sig = new secp.Signature(r, s);
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deepStrictEqual(secp.Signature.fromCompact(sig.toCompactHex()), sig);
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})
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);
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});
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should('.fromDERHex() roundtrip', () => {
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fc.assert(
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fc.property(FC_BIGINT, FC_BIGINT, (r, s) => {
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const sig = new secp.Signature(r, s);
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deepStrictEqual(secp.Signature.fromDER(sig.toDERHex()), sig);
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})
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);
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});
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});
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describe('sign()', () => {
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should('create deterministic signatures with RFC 6979', () => {
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for (const vector of ecdsa.valid) {
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let usig = secp.sign(vector.m, vector.d);
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let sig = usig.toCompactHex();
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const vsig = vector.signature;
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deepStrictEqual(sig.slice(0, 64), vsig.slice(0, 64));
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deepStrictEqual(sig.slice(64, 128), vsig.slice(64, 128));
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}
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});
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should('not create invalid deterministic signatures with RFC 6979', () => {
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for (const vector of ecdsa.invalid.sign) {
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throws(() => secp.sign(vector.m, vector.d));
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}
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});
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should('edge cases', () => {
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throws(() => secp.sign());
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throws(() => secp.sign(''));
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});
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should('create correct DER encoding against libsecp256k1', () => {
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const CASES = [
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[
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'd1a9dc8ed4e46a6a3e5e594615ca351d7d7ef44df1e4c94c1802f3592183794b',
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'304402203de2559fccb00c148574997f660e4d6f40605acc71267ee38101abf15ff467af02200950abdf40628fd13f547792ba2fc544681a485f2fdafb5c3b909a4df7350e6b',
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],
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[
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'5f97983254982546d3976d905c6165033976ee449d300d0e382099fa74deaf82',
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'3045022100c046d9ff0bd2845b9aa9dff9f997ecebb31e52349f80fe5a5a869747d31dcb88022011f72be2a6d48fe716b825e4117747b397783df26914a58139c3f4c5cbb0e66c',
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],
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[
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'0d7017a96b97cd9be21cf28aada639827b2814a654a478c81945857196187808',
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'3045022100d18990bba7832bb283e3ecf8700b67beb39acc73f4200ed1c331247c46edccc602202e5c8bbfe47ae159512c583b30a3fa86575cddc62527a03de7756517ae4c6c73',
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],
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];
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const privKey = hexToBytes(
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'0101010101010101010101010101010101010101010101010101010101010101'
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);
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for (const [msg, exp] of CASES) {
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const res = secp.sign(msg, privKey, { extraEntropy: undefined });
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deepStrictEqual(res.toDERHex(), exp);
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const rs = secp.Signature.fromDER(res.toDERHex()).toCompactHex();
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deepStrictEqual(secp.Signature.fromCompact(rs).toDERHex(), exp);
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}
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});
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should('handle {extraData} option', () => {
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const ent1 = '0000000000000000000000000000000000000000000000000000000000000000';
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const ent2 = '0000000000000000000000000000000000000000000000000000000000000001';
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const ent3 = '6e723d3fd94ed5d2b6bdd4f123364b0f3ca52af829988a63f8afe91d29db1c33';
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const ent4 = 'fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141';
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const ent5 = 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff';
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for (const e of ecdsa.extraEntropy) {
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const sign = (extraEntropy) => {
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const s = secp.sign(e.m, e.d, { extraEntropy }).toCompactHex();
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return s;
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};
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deepStrictEqual(sign(), e.signature);
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deepStrictEqual(sign(ent1), e.extraEntropy0);
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deepStrictEqual(sign(ent2), e.extraEntropy1);
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deepStrictEqual(sign(ent3), e.extraEntropyRand);
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deepStrictEqual(sign(ent4), e.extraEntropyN);
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deepStrictEqual(sign(ent5), e.extraEntropyMax);
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}
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});
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});
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describe('verify()', () => {
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should('verify signature', () => {
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const MSG = '01'.repeat(32);
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const PRIV_KEY = 0x2n;
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const signature = secp.sign(MSG, PRIV_KEY);
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const publicKey = secp.getPublicKey(PRIV_KEY);
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deepStrictEqual(publicKey.length, 33);
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deepStrictEqual(secp.verify(signature, MSG, publicKey), true);
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});
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should(' not verify signature with wrong public key', () => {
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const MSG = '01'.repeat(32);
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const PRIV_KEY = 0x2n;
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const WRONG_PRIV_KEY = 0x22n;
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const signature = secp.sign(MSG, PRIV_KEY);
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const publicKey = Point.fromPrivateKey(WRONG_PRIV_KEY).toHex();
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deepStrictEqual(publicKey.length, 66);
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deepStrictEqual(secp.verify(signature, MSG, publicKey), false);
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});
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should('not verify signature with wrong hash', () => {
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const MSG = '01'.repeat(32);
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const PRIV_KEY = 0x2n;
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const WRONG_MSG = '11'.repeat(32);
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const signature = secp.sign(MSG, PRIV_KEY);
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const publicKey = secp.getPublicKey(PRIV_KEY);
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deepStrictEqual(publicKey.length, 33);
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deepStrictEqual(secp.verify(signature, WRONG_MSG, publicKey), false);
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});
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should('verify random signatures', () =>
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fc.assert(
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fc.property(FC_BIGINT, fc.hexaString({ minLength: 64, maxLength: 64 }), (privKey, msg) => {
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const pub = secp.getPublicKey(privKey);
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const sig = secp.sign(msg, privKey);
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deepStrictEqual(secp.verify(sig, msg, pub), true);
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})
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)
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);
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should('not verify signature with invalid r/s', () => {
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const msg = new Uint8Array([
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0xbb, 0x5a, 0x52, 0xf4, 0x2f, 0x9c, 0x92, 0x61, 0xed, 0x43, 0x61, 0xf5, 0x94, 0x22, 0xa1,
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0xe3, 0x00, 0x36, 0xe7, 0xc3, 0x2b, 0x27, 0x0c, 0x88, 0x07, 0xa4, 0x19, 0xfe, 0xca, 0x60,
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0x50, 0x23,
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]);
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const x = 100260381870027870612475458630405506840396644859280795015145920502443964769584n;
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const y = 41096923727651821103518389640356553930186852801619204169823347832429067794568n;
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const r = 1n;
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const s = 115792089237316195423570985008687907852837564279074904382605163141518162728904n;
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const pub = new Point(x, y);
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const signature = new secp.Signature(2n, 2n);
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signature.r = r;
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signature.s = s;
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const verified = secp.verify(signature, msg, pub);
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// Verifies, but it shouldn't, because signature S > curve order
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deepStrictEqual(verified, false);
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});
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should('not verify msg = curve order', () => {
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const msg = 'fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141';
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const x = 55066263022277343669578718895168534326250603453777594175500187360389116729240n;
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const y = 32670510020758816978083085130507043184471273380659243275938904335757337482424n;
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const r = 104546003225722045112039007203142344920046999340768276760147352389092131869133n;
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const s = 96900796730960181123786672629079577025401317267213807243199432755332205217369n;
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const pub = new Point(x, y);
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const sig = new secp.Signature(r, s);
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deepStrictEqual(secp.verify(sig, msg, pub), false);
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});
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should('verify non-strict msg bb5a...', () => {
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const msg = 'bb5a52f42f9c9261ed4361f59422a1e30036e7c32b270c8807a419feca605023';
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const x = 3252872872578928810725465493269682203671229454553002637820453004368632726370n;
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const y = 17482644437196207387910659778872952193236850502325156318830589868678978890912n;
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const r = 432420386565659656852420866390673177323n;
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const s = 115792089237316195423570985008687907852837564279074904382605163141518161494334n;
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const pub = new Point(x, y);
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const sig = new secp.Signature(r, s);
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deepStrictEqual(secp.verify(sig, msg, pub, { strict: false }), true);
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});
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should('not verify invalid deterministic signatures with RFC 6979', () => {
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for (const vector of ecdsa.invalid.verify) {
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const res = secp.verify(vector.signature, vector.m, vector.Q);
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deepStrictEqual(res, false);
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}
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});
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});
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describe('schnorr.sign()', () => {
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// index,secret key,public key,aux_rand,message,signature,verification result,comment
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const vectors = schCsv
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.split('\n')
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.map((line) => line.split(','))
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.slice(1, -1);
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for (let vec of vectors) {
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const [index, sec, pub, rnd, msg, expSig, passes, comment] = vec;
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should(`${comment || 'vector ' + index}`, () => {
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if (sec) {
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deepStrictEqual(hex(schnorr.getPublicKey(sec)), pub.toLowerCase());
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const sig = schnorr.sign(msg, sec, rnd);
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deepStrictEqual(hex(sig), expSig.toLowerCase());
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deepStrictEqual(schnorr.verify(sig, msg, pub), true);
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} else {
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const passed = schnorr.verify(expSig, msg, pub);
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deepStrictEqual(passed, passes === 'TRUE');
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}
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});
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}
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});
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describe('recoverPublicKey()', () => {
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should('recover public key from recovery bit', () => {
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const message = '00000000000000000000000000000000000000000000000000000000deadbeef';
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const privateKey = 123456789n;
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const publicKey = Point.fromHex(secp.getPublicKey(privateKey)).toHex(false);
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const sig = secp.sign(message, privateKey);
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const recoveredPubkey = sig.recoverPublicKey(message);
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// const recoveredPubkey = secp.recoverPublicKey(message, signature, recovery);
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deepStrictEqual(recoveredPubkey !== null, true);
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deepStrictEqual(recoveredPubkey.toHex(false), publicKey);
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deepStrictEqual(secp.verify(sig, message, publicKey), true);
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});
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should('not recover zero points', () => {
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const msgHash = '6b8d2c81b11b2d699528dde488dbdf2f94293d0d33c32e347f255fa4a6c1f0a9';
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const sig =
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'79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f817986b8d2c81b11b2d699528dde488dbdf2f94293d0d33c32e347f255fa4a6c1f0a9';
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const recovery = 0;
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throws(() => secp.recoverPublicKey(msgHash, sig, recovery));
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});
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should('handle all-zeros msghash', () => {
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const privKey = secp.utils.randomPrivateKey();
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const pub = secp.getPublicKey(privKey);
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const zeros = '0000000000000000000000000000000000000000000000000000000000000000';
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const sig = secp.sign(zeros, privKey);
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const recoveredKey = sig.recoverPublicKey(zeros);
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deepStrictEqual(recoveredKey.toRawBytes(), pub);
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});
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should('handle RFC 6979 vectors', () => {
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for (const vector of ecdsa.valid) {
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let usig = secp.sign(vector.m, vector.d);
|
|
let sig = usig.toDERHex();
|
|
const vpub = secp.getPublicKey(vector.d);
|
|
const recovered = usig.recoverPublicKey(vector.m);
|
|
deepStrictEqual(recovered.toHex(), hex(vpub));
|
|
}
|
|
});
|
|
});
|
|
|
|
describe('getSharedSecret()', () => {
|
|
// TODO: Real implementation.
|
|
function derToPub(der) {
|
|
return der.slice(46);
|
|
}
|
|
should('produce correct results', () => {
|
|
// TODO: Once der is there, run all tests.
|
|
for (const vector of ecdh.testGroups[0].tests.slice(0, 230)) {
|
|
if (vector.result === 'invalid' || vector.private.length !== 64) {
|
|
throws(() => {
|
|
secp.getSharedSecret(vector.private, derToPub(vector.public), true);
|
|
});
|
|
} else if (vector.result === 'valid') {
|
|
const res = secp.getSharedSecret(vector.private, derToPub(vector.public), true);
|
|
deepStrictEqual(hex(res.slice(1)), `${vector.shared}`);
|
|
}
|
|
}
|
|
});
|
|
should('priv/pub order matters', () => {
|
|
for (const vector of ecdh.testGroups[0].tests.slice(0, 100)) {
|
|
if (vector.result === 'valid') {
|
|
let priv = vector.private;
|
|
priv = priv.length === 66 ? priv.slice(2) : priv;
|
|
throws(() => secp.getSharedSecret(derToPub(vector.public), priv, true));
|
|
}
|
|
}
|
|
});
|
|
should('reject invalid keys', () => {
|
|
throws(() => secp.getSharedSecret('01', '02'));
|
|
});
|
|
});
|
|
|
|
should('utils.isValidPrivateKey()', () => {
|
|
for (const vector of privates.valid.isPrivate) {
|
|
const { d, expected } = vector;
|
|
deepStrictEqual(secp.utils.isValidPrivateKey(d), expected);
|
|
}
|
|
});
|
|
should('have proper curve equation in assertValidity()', () => {
|
|
throws(() => {
|
|
const { Fp } = secp.CURVE;
|
|
let point = new Point(Fp.create(-2n), Fp.create(-1n));
|
|
point.assertValidity();
|
|
});
|
|
});
|
|
|
|
describe('tweak utilities (legacy)', () => {
|
|
const Fn = Fp(secp.CURVE.n);
|
|
const normal = secp.utils._normalizePrivateKey;
|
|
const tweakUtils = {
|
|
privateAdd: (privateKey, tweak) => {
|
|
const p = normal(privateKey);
|
|
const t = normal(tweak);
|
|
return secp.utils._bigintToBytes(Fn.create(p + t));
|
|
},
|
|
|
|
privateNegate: (privateKey) => {
|
|
const p = normal(privateKey);
|
|
return secp.utils._bigintToBytes(Fn.negate(p));
|
|
},
|
|
|
|
pointAddScalar: (p, tweak, isCompressed) => {
|
|
const P = Point.fromHex(p);
|
|
const t = normal(tweak);
|
|
const Q = Point.BASE.multiplyAndAddUnsafe(P, t, 1n);
|
|
if (!Q) throw new Error('Tweaked point at infinity');
|
|
return Q.toRawBytes(isCompressed);
|
|
},
|
|
|
|
pointMultiply: (p, tweak, isCompressed) => {
|
|
const P = Point.fromHex(p);
|
|
const h = typeof tweak === 'string' ? tweak : bytesToHex(tweak);
|
|
const t = BigInt(`0x${h}`);
|
|
return P.multiply(t).toRawBytes(isCompressed);
|
|
},
|
|
};
|
|
|
|
should('privateAdd()', () => {
|
|
for (const vector of privates.valid.add) {
|
|
const { a, b, expected } = vector;
|
|
deepStrictEqual(bytesToHex(tweakUtils.privateAdd(a, b)), expected);
|
|
}
|
|
});
|
|
should('privateNegate()', () => {
|
|
for (const vector of privates.valid.negate) {
|
|
const { a, expected } = vector;
|
|
deepStrictEqual(bytesToHex(tweakUtils.privateNegate(a)), expected);
|
|
}
|
|
});
|
|
should('pointAddScalar()', () => {
|
|
for (const vector of points.valid.pointAddScalar) {
|
|
const { description, P, d, expected } = vector;
|
|
const compressed = !!expected && expected.length === 66; // compressed === 33 bytes
|
|
deepStrictEqual(bytesToHex(tweakUtils.pointAddScalar(P, d, compressed)), expected);
|
|
}
|
|
});
|
|
should('pointAddScalar() invalid', () => {
|
|
for (const vector of points.invalid.pointAddScalar) {
|
|
const { P, d, exception } = vector;
|
|
throws(() => tweakUtils.pointAddScalar(P, d));
|
|
}
|
|
});
|
|
should('pointMultiply()', () => {
|
|
for (const vector of points.valid.pointMultiply) {
|
|
const { P, d, expected } = vector;
|
|
deepStrictEqual(bytesToHex(tweakUtils.pointMultiply(P, d, true)), expected);
|
|
}
|
|
});
|
|
should('pointMultiply() invalid', () => {
|
|
for (const vector of points.invalid.pointMultiply) {
|
|
const { P, d, exception } = vector;
|
|
throws(() => tweakUtils.pointMultiply(P, d));
|
|
}
|
|
});
|
|
});
|
|
|
|
should('wychenproof vectors', () => {
|
|
for (let group of wp.testGroups) {
|
|
const pubKey = Point.fromHex(group.key.uncompressed);
|
|
for (let test of group.tests) {
|
|
const m = secp.CURVE.hash(hexToBytes(test.msg));
|
|
if (test.result === 'valid' || test.result === 'acceptable') {
|
|
const verified = secp.verify(test.sig, m, pubKey);
|
|
if (secp.Signature.fromDER(test.sig).hasHighS()) {
|
|
deepStrictEqual(verified, false);
|
|
} else {
|
|
deepStrictEqual(verified, true);
|
|
}
|
|
} else if (test.result === 'invalid') {
|
|
let failed = false;
|
|
try {
|
|
const verified = secp.verify(test.sig, m, pubKey);
|
|
if (!verified) failed = true;
|
|
} catch (error) {
|
|
failed = true;
|
|
}
|
|
deepStrictEqual(failed, true);
|
|
} else {
|
|
deepStrictEqual(false, true);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
// ESM is broken.
|
|
import url from 'url';
|
|
if (import.meta.url === url.pathToFileURL(process.argv[1]).href) {
|
|
should.run();
|
|
}
|