fix bls lint errors
This commit is contained in:
parent
89ed2e68e7
commit
57428df8ec
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@ -24,7 +24,7 @@
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"build-web": "webpack --mode production --entry ./lib/web.js --output ./dist/bls.min.js",
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"check-types": "tsc --noEmit",
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"lint": "eslint --ext .ts src/",
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"lint-fix": "eslint --ext .ts src/ --fix",
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"lint:fix": "eslint --ext .ts src/ --fix",
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"pretest": "yarn check-types",
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"prepublishOnly": "yarn build",
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"test:unit": "nyc --cache-dir .nyc_output/.cache -r lcov -e .ts mocha -r ./.babel-register 'test/unit/**/*.test.ts' && nyc report",
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@ -1,4 +1,4 @@
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declare module 'keccak256' {
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declare module "keccak256" {
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export default function hash(a: Buffer | (Buffer | string | number)[]): Buffer;
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@ -15,6 +15,71 @@ export class G1point {
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this.point = point;
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}
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public static fromBytesCompressed(value: bytes48): G1point {
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assert(value.length === FP_POINT_LENGTH, `Expected g1 compressed input to have ${FP_POINT_LENGTH} bytes`);
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value = Buffer.from(value);
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const aIn = (value[0] & (1 << 5)) != 0;
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const bIn = (value[0] & (1 << 6)) != 0;
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const cIn = (value[0] & (1 << 7)) != 0;
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value[0] &= 31;
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if (!cIn) {
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throw new Error("The serialised input does not have the C flag set.");
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}
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const x = ctx.BIG.frombytearray(value, 0);
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if (bIn) {
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if (!aIn && x.iszilch()) {
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// This is a correctly formed serialisation of infinity
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return new G1point(new ctx.ECP());
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} else {
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// The input is malformed
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throw new Error(
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"The serialised input has B flag set, but A flag is set, or X is non-zero.");
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}
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}
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const modulus = getModulus();
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if (ctx.BIG.comp(modulus, x) <= 0) {
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throw new Error("X coordinate is too large.");
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}
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const point = new ctx.ECP();
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point.setx(x);
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if (point.is_infinity()) {
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throw new Error("X coordinate is not on the curve.");
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}
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// Did we get the right branch of the sqrt?
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if (!point.is_infinity() && aIn != calculateYFlag(point.getY())) {
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// We didn't: so choose the other branch of the sqrt.
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const x = new ctx.FP(point.getX());
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const yneg = new ctx.FP(point.getY());
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yneg.neg();
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point.setxy(x.redc(), yneg.redc());
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}
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return new G1point(point);
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}
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public static generator(): G1point {
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return new G1point(ctx.ECP.generator());
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}
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public static random(): G1point {
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let ecp: ECP;
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do {
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ecp = new ctx.ECP();
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ecp.setx(
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ctx.BIG.frombytearray(
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random.randomBuffer(FP_POINT_LENGTH),
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0
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)
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);
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} while (ecp.is_infinity());
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return new G1point(ecp);
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}
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public mul(value: BIG): G1point {
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const newPoint = this.point.mul(value);
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return new G1point(newPoint);
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@ -54,69 +119,4 @@ export class G1point {
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output[0] |= flags;
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return output;
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}
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public static fromBytesCompressed(value: bytes48): G1point {
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assert(value.length === FP_POINT_LENGTH, `Expected g1 compressed input to have ${FP_POINT_LENGTH} bytes`);
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value = Buffer.from(value);
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const aIn = (value[0] & (1 << 5)) != 0;
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const bIn = (value[0] & (1 << 6)) != 0;
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const cIn = (value[0] & (1 << 7)) != 0;
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value[0] &= 31;
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if (!cIn) {
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throw new Error("The serialised input does not have the C flag set.");
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}
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const x = ctx.BIG.frombytearray(value, 0);
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if (bIn) {
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if (!aIn && x.iszilch()) {
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// This is a correctly formed serialisation of infinity
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return new G1point(new ctx.ECP());
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} else {
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// The input is malformed
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throw new Error(
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"The serialised input has B flag set, but A flag is set, or X is non-zero.");
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}
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}
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const modulus = getModulus();
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if (ctx.BIG.comp(modulus, x) <= 0) {
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throw new Error("X coordinate is too large.");
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}
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let point = new ctx.ECP();
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point.setx(x);
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if (point.is_infinity()) {
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throw new Error("X coordinate is not on the curve.");
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}
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// Did we get the right branch of the sqrt?
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if (!point.is_infinity() && aIn != calculateYFlag(point.getY())) {
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// We didn't: so choose the other branch of the sqrt.
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const x = new ctx.FP(point.getX());
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const yneg = new ctx.FP(point.getY());
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yneg.neg();
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point.setxy(x.redc(), yneg.redc())
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}
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return new G1point(point);
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}
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public static generator(): G1point {
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return new G1point(ctx.ECP.generator());
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}
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public static random(): G1point {
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let ecp: ECP;
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do {
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ecp = new ctx.ECP();
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ecp.setx(
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ctx.BIG.frombytearray(
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random.randomBuffer(FP_POINT_LENGTH),
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0
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)
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)
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} while (ecp.is_infinity());
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return new G1point(ecp);
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}
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}
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@ -1,7 +1,7 @@
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import {BIG} from "@chainsafe/milagro-crypto-js/src/big";
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import {ECP2} from "@chainsafe/milagro-crypto-js/src/ecp2";
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import {BLSDomain, bytes32, bytes96} from "../types";
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import { sha256 } from 'js-sha256';
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import {sha256} from "js-sha256";
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import ctx from "../ctx";
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import * as random from "secure-random";
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import {calculateYFlag, getModulus, padLeft} from "./utils";
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@ -16,47 +16,6 @@ export class G2point {
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this.point = point;
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}
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public add(other: G2point): G2point {
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const sum = new ctx.ECP2();
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sum.add(this.point);
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sum.add(other.point);
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sum.affine();
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return new G2point(sum);
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}
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public mul(value: BIG): G2point {
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const newPoint = this.point.mul(value);
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return new G2point(newPoint);
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}
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public equal(other: G2point): boolean {
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return this.point.equals(other.point);
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}
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public getPoint(): ECP2 {
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return this.point;
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}
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public toBytesCompressed(): Buffer {
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const xReBytes = Buffer.alloc(FP_POINT_LENGTH, 0);
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const xImBytes = Buffer.alloc(FP_POINT_LENGTH, 0);
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this.point.getX().getA().tobytearray(xReBytes, 0);
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this.point.getX().getB().tobytearray(xImBytes, 0);
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const c1 = true;
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const b1 = this.point.is_infinity();
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const a1 = !b1 && calculateYFlag(this.point.getY().getB());
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const flags = ((a1 ? 1 << 5 : 0) | (b1 ? 1 << 6 : 0) | (c1 ? 1 << 7 : 0));
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const mask = 31;
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xImBytes[0] &= mask;
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xImBytes[0] |= flags;
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xReBytes[0] &= mask;
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return Buffer.concat([
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xImBytes,
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xReBytes
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]);
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}
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public static hashToG2(message: bytes32, domain: BLSDomain): G2point {
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const padding = Buffer.alloc(G2_HASH_PADDING, 0);
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@ -66,7 +25,7 @@ export class G2point {
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Buffer.concat([
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message,
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padLeft(domain, 8),
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Buffer.from('01', 'hex')
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Buffer.from("01", "hex")
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])
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))
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]);
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@ -76,7 +35,7 @@ export class G2point {
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Buffer.concat([
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message,
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padLeft(domain, 8),
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Buffer.from('02', 'hex')
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Buffer.from("02", "hex")
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])
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))
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]);
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@ -89,13 +48,13 @@ export class G2point {
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xRe.add(one);
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xRe.norm();
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point = new ctx.ECP2();
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point.setx(new ctx.FP2(xRe, xIm))
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point.setx(new ctx.FP2(xRe, xIm));
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}
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return new G2point(G2point.scaleWithCofactor(G2point.normaliseY(point)));
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}
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public static fromCompressedBytes(value: bytes96): G2point {
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assert(value.length === 2 * FP_POINT_LENGTH, 'Expected signature of 96 bytes');
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assert(value.length === 2 * FP_POINT_LENGTH, "Expected signature of 96 bytes");
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value = Buffer.from(value);
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const xImBytes = value.slice(0, FP_POINT_LENGTH);
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const xReBytes = value.slice(FP_POINT_LENGTH);
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@ -114,8 +73,8 @@ export class G2point {
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const xRe = ctx.BIG.frombytearray(xReBytes, 0);
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if (bIn) {
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if (!aIn
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&& xIm.iszilch()
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&& xRe.iszilch() ) {
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&& xIm.iszilch()
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&& xRe.iszilch() ) {
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// This is a correctly formed serialisation of infinity
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return new G2point(new ctx.ECP2());
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} else {
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@ -131,7 +90,7 @@ export class G2point {
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"The deserialised X real or imaginary coordinate is too large.");
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}
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let point = new ctx.ECP2();
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const point = new ctx.ECP2();
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point.setx(new ctx.FP2(xRe, xIm));
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if(point.is_infinity()) {
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throw new Error("X coordinate is not on the curve.");
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@ -189,7 +148,7 @@ export class G2point {
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0
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)
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)
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)
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);
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} while (point.is_infinity());
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return new G2point(point);
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}
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@ -235,14 +194,56 @@ export class G2point {
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const yNeg = new ctx.FP2(y);
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yNeg.neg();
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if (ctx.BIG.comp(y.getB(), yNeg.getB()) < 0
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|| ((ctx.BIG.comp(y.getB(), yNeg.getB()) == 0)
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&& ctx.BIG.comp(y.getA(), yNeg.getA()) < 0)
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|| ((ctx.BIG.comp(y.getB(), yNeg.getB()) == 0)
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&& ctx.BIG.comp(y.getA(), yNeg.getA()) < 0)
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) {
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const newPoint = new ctx.ECP2();
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newPoint.setxy(point.getX(), yNeg);
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return newPoint
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return newPoint;
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} else {
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return point;
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}
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}
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public add(other: G2point): G2point {
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const sum = new ctx.ECP2();
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sum.add(this.point);
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sum.add(other.point);
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sum.affine();
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return new G2point(sum);
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}
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public mul(value: BIG): G2point {
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const newPoint = this.point.mul(value);
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return new G2point(newPoint);
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}
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public equal(other: G2point): boolean {
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return this.point.equals(other.point);
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}
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public getPoint(): ECP2 {
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return this.point;
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}
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public toBytesCompressed(): Buffer {
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const xReBytes = Buffer.alloc(FP_POINT_LENGTH, 0);
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const xImBytes = Buffer.alloc(FP_POINT_LENGTH, 0);
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this.point.getX().getA().tobytearray(xReBytes, 0);
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this.point.getX().getB().tobytearray(xImBytes, 0);
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const c1 = true;
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const b1 = this.point.is_infinity();
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const a1 = !b1 && calculateYFlag(this.point.getY().getB());
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const flags = ((a1 ? 1 << 5 : 0) | (b1 ? 1 << 6 : 0) | (c1 ? 1 << 7 : 0));
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const mask = 31;
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xImBytes[0] &= mask;
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xImBytes[0] |= flags;
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xReBytes[0] &= mask;
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return Buffer.concat([
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xImBytes,
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xReBytes
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]);
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}
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}
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@ -9,7 +9,7 @@ import ctx from "../ctx";
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* @param length
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*/
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export function padLeft(source: Buffer, length: number): Buffer {
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assert(source.length <= length, 'Given array must be smaller or equal to desired array size');
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assert(source.length <= length, "Given array must be smaller or equal to desired array size");
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const result = Buffer.alloc(length, 0);
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source.copy(result, length - source.length);
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return result;
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@ -19,11 +19,11 @@ export function padLeft(source: Buffer, length: number): Buffer {
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export function getModulus(): BIG {
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return ctx.BIG.frombytearray(
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Buffer.from(
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'1a0111ea397fe69a4b1ba7b6434bacd764774b84f38512bf6730d2a0f6b0f6241eabfffeb153ffffb9feffffffffaaab',
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'hex'
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"1a0111ea397fe69a4b1ba7b6434bacd764774b84f38512bf6730d2a0f6b0f6241eabfffeb153ffffb9feffffffffaaab",
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"hex"
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),
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0
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)
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);
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}
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export function calculateYFlag(yIm: BIG): boolean {
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13
src/index.ts
13
src/index.ts
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@ -49,7 +49,7 @@ function sign(secretKey: BLSSecretKey, messageHash: bytes32, domain: BLSDomain):
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*/
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function aggregateSignatures(signatures: BLSSignature[]): BLSSignature {
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return signatures.map((signature): Signature => {
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return Signature.fromCompressedBytes(signature)
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return Signature.fromCompressedBytes(signature);
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}).reduce((previousValue, currentValue): Signature => {
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return previousValue.add(currentValue);
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}).toBytesCompressed();
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@ -64,7 +64,7 @@ function aggregatePubkeys(publicKeys: BLSPubkey[]): BLSPubkey {
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return new G1point(new ctx.ECP()).toBytesCompressed();
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}
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return publicKeys.map((publicKey): G1point => {
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return G1point.fromBytesCompressed(publicKey)
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return G1point.fromBytesCompressed(publicKey);
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}).reduce((previousValue, currentValue): G1point => {
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return previousValue.add(currentValue);
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}).toBytesCompressed();
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@ -98,7 +98,12 @@ function verify(publicKey: BLSPubkey, messageHash: bytes32, signature: BLSSignat
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* @param signature
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* @param domain
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*/
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function verifyMultiple(publicKeys: BLSPubkey[], messageHashes: bytes32[], signature: BLSSignature, domain: bytes8): boolean {
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function verifyMultiple(
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publicKeys: BLSPubkey[],
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messageHashes: bytes32[],
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signature: BLSSignature,
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domain: bytes8
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): boolean {
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if(publicKeys.length === 0 || publicKeys.length != messageHashes.length) {
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return false;
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}
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@ -129,4 +134,4 @@ export default {
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aggregatePubkeys,
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verify,
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verifyMultiple
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}
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};
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@ -15,6 +15,31 @@ export class PrivateKey {
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this.value = value;
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}
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public static fromBytes(bytes: Uint8Array): PrivateKey {
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assert(bytes.length === SECRET_KEY_LENGTH, "Private key should have 32 bytes");
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const value = Buffer.from(bytes);
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return new PrivateKey(
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ctx.BIG.frombytearray(
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padLeft(
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value,
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48
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),
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0
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)
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);
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}
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public static fromHexString(value: string): PrivateKey {
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return PrivateKey.fromBytes(
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Buffer.from(value.replace("0x", ""), "hex")
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);
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}
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public static random(): PrivateKey {
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return PrivateKey.fromBytes(random.randomBuffer(SECRET_KEY_LENGTH));
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}
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public getValue(): BIG {
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return this.value;
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}
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@ -34,31 +59,7 @@ export class PrivateKey {
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}
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public toHexString(): string {
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return `0x${this.toBytes().toString('hex')}`;
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}
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public static fromBytes(bytes: Uint8Array): PrivateKey {
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assert(bytes.length === SECRET_KEY_LENGTH, 'Private key should have 32 bytes');
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const value = Buffer.from(bytes);
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return new PrivateKey(
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ctx.BIG.frombytearray(
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padLeft(
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value,
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48
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),
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0
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)
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)
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}
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public static fromHexString(value: string): PrivateKey {
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return PrivateKey.fromBytes(
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Buffer.from(value.replace('0x', ''), 'hex')
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);
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}
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public static random(): PrivateKey {
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return PrivateKey.fromBytes(random.randomBuffer(SECRET_KEY_LENGTH));
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return `0x${this.toBytes().toString("hex")}`;
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}
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}
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|
|
@ -9,19 +9,7 @@ export class PublicKey {
|
|||
public constructor(point: G1point) {
|
||||
this.point = point;
|
||||
}
|
||||
|
||||
public getPoint(): G1point {
|
||||
return this.point;
|
||||
}
|
||||
|
||||
public toBytesCompressed(): BLSPubkey {
|
||||
return this.point.toBytesCompressed();
|
||||
}
|
||||
|
||||
public toHexString(): string {
|
||||
return `0x${this.toBytesCompressed().toString('hex')}`;
|
||||
}
|
||||
|
||||
|
||||
public static fromPrivateKey(privateKey: PrivateKey): PublicKey {
|
||||
return new PublicKey(
|
||||
G1point.generator().mul(privateKey.getValue())
|
||||
|
@ -33,4 +21,16 @@ export class PublicKey {
|
|||
G1point.fromBytesCompressed(publicKey)
|
||||
);
|
||||
}
|
||||
|
||||
public getPoint(): G1point {
|
||||
return this.point;
|
||||
}
|
||||
|
||||
public toBytesCompressed(): BLSPubkey {
|
||||
return this.point.toBytesCompressed();
|
||||
}
|
||||
|
||||
public toHexString(): string {
|
||||
return `0x${this.toBytesCompressed().toString("hex")}`;
|
||||
}
|
||||
}
|
||||
|
|
|
@ -11,6 +11,14 @@ export class Signature {
|
|||
this.point = point;
|
||||
}
|
||||
|
||||
public static fromCompressedBytes(signature: BLSSignature): Signature {
|
||||
assert(
|
||||
signature.length === 2 * FP_POINT_LENGTH,
|
||||
`Signature must have ${2 * FP_POINT_LENGTH} bytes`
|
||||
);
|
||||
return new Signature(G2point.fromCompressedBytes(signature));
|
||||
}
|
||||
|
||||
public add(other: Signature): Signature {
|
||||
return new Signature(
|
||||
this.point.add(other.point)
|
||||
|
@ -24,12 +32,4 @@ export class Signature {
|
|||
public toBytesCompressed(): BLSSignature {
|
||||
return this.point.toBytesCompressed();
|
||||
}
|
||||
|
||||
public static fromCompressedBytes(signature: BLSSignature): Signature {
|
||||
assert(
|
||||
signature.length === 2 * FP_POINT_LENGTH,
|
||||
`Signature must have ${2 * FP_POINT_LENGTH} bytes`
|
||||
);
|
||||
return new Signature(G2point.fromCompressedBytes(signature));
|
||||
}
|
||||
}
|
||||
|
|
|
@ -1,8 +1,7 @@
|
|||
import bls from "./index"
|
||||
import bls from "./index";
|
||||
|
||||
// eslint-disable-next-line @typescript-eslint/no-explicit-any
|
||||
// @ts-ignore
|
||||
(function (window: any) {
|
||||
window.bls = bls
|
||||
window.bls = bls;
|
||||
// @ts-ignore
|
||||
})(window);
|
||||
|
|
Reference in New Issue