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blindsecp256k1-js
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Using up to date libraries for EC and BigNumber

pull/1/head
Jør∂¡ 3 years ago
parent
fc74a782e3
commit
1c8f9e6ffe
4 changed files with 222 additions and 123 deletions
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  1. +144
    -64
      package-lock.json
  2. +4
    -5
      package.json
  3. +54
    -43
      src/index.ts
  4. +20
    -11
      test/index.test.ts

+ 144
- 64
package-lock.json
View File

@ -10,14 +10,13 @@
"license": "GPL-3.0",
"dependencies": {
"@ethersproject/keccak256": "5.0.7",
"bigi": "^1.4.2",
"bignumber.js": "7.0.2",
"ecurve": "1.0.0"
"bn.js": "^5.1.3",
"elliptic": "^6.5.4"
},
"devDependencies": {
"@types/bigi": "^1.4.2",
"@types/bn.js": "^5.1.0",
"@types/chai": "^4.2.14",
"@types/ecurve": "^1.0.0",
"@types/elliptic": "^6.4.12",
"@types/mocha": "^8.2.0",
"@types/node": "^14.14.25",
"chai": "^4.2.0",
@ -147,11 +146,14 @@
"resolved": "https://registry.npmjs.org/@ethersproject/logger/-/logger-5.0.8.tgz",
"integrity": "sha512-SkJCTaVTnaZ3/ieLF5pVftxGEFX56pTH+f2Slrpv7cU0TNpUZNib84QQdukd++sWUp/S7j5t5NW+WegbXd4U/A=="
},
"node_modules/@types/bigi": {
"version": "1.4.2",
"resolved": "https://registry.npmjs.org/@types/bigi/-/bigi-1.4.2.tgz",
"integrity": "sha512-St8Vm0x1ApYlU9yNaFx3jBis5JVU6oR/5Xtgvn8+N8Ts8f3ze6kOvAAg0aNkbGMGhhG6PrP0nMOgDI9NMFETkA==",
"dev": true
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"resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-5.1.0.tgz",
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"dev": true,
"dependencies": {
"@types/node": "*"
}
},
"node_modules/@types/chai": {
"version": "4.2.14",
@ -159,14 +161,13 @@
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"dev": true
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"resolved": "https://registry.npmjs.org/@types/ecurve/-/ecurve-1.0.0.tgz",
"integrity": "sha1-DR/OAi2LqyvEurKMXXgbZCEAGMQ=",
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"dev": true,
"dependencies": {
"@types/bigi": "*",
"@types/node": "*"
"@types/bn.js": "*"
}
},
"node_modules/@types/mocha": {
@ -263,19 +264,6 @@
"integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
"dev": true
},
"node_modules/bigi": {
"version": "1.4.2",
"resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.2.tgz",
"integrity": "sha1-nGZalfiLiwj8Bc/XMfVhhZ1yWCU="
},
"node_modules/bignumber.js": {
"version": "7.0.2",
"resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-7.0.2.tgz",
"integrity": "sha512-TosM7Yg1Ux0ZCNwwS/tW95r3q9xIZstgsUGKWaez0Cgq8Oy3qia9RGvyG/fbxlQAvigjza1d057QNQLGvYXCeg==",
"engines": {
"node": "*"
}
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"resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
@ -285,6 +273,11 @@
"node": ">=8"
}
},
"node_modules/bn.js": {
"version": "5.1.3",
"resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.1.3.tgz",
"integrity": "sha512-GkTiFpjFtUzU9CbMeJ5iazkCzGL3jrhzerzZIuqLABjbwRaFt33I9tUdSNryIptM+RxDet6OKm2WnLXzW51KsQ=="
},
"node_modules/brace-expansion": {
"version": "1.1.11",
"resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@ -307,6 +300,11 @@
"node": ">=8"
}
},
"node_modules/brorand": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
"integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8="
},
"node_modules/browser-stdout": {
"version": "1.3.1",
"resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
@ -531,14 +529,25 @@
"node": ">=0.3.1"
}
},
"node_modules/ecurve": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/ecurve/-/ecurve-1.0.0.tgz",
"integrity": "sha1-Ms/Vzl9CHpNRIGoz1OPP0280ZaQ=",
"node_modules/elliptic": {
"version": "6.5.4",
"resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
"integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
"dependencies": {
"bigi": "^1.1.0"
"bn.js": "^4.11.9",
"brorand": "^1.1.0",
"hash.js": "^1.0.0",
"hmac-drbg": "^1.0.1",
"inherits": "^2.0.4",
"minimalistic-assert": "^1.0.1",
"minimalistic-crypto-utils": "^1.0.1"
}
},
"node_modules/elliptic/node_modules/bn.js": {
"version": "4.11.9",
"resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.9.tgz",
"integrity": "sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw=="
},
"node_modules/emoji-regex": {
"version": "7.0.3",
"resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
@ -711,6 +720,15 @@
"node": ">=8"
}
},
"node_modules/hash.js": {
"version": "1.1.7",
"resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.7.tgz",
"integrity": "sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==",
"dependencies": {
"inherits": "^2.0.3",
"minimalistic-assert": "^1.0.1"
}
},
"node_modules/he": {
"version": "1.2.0",
"resolved": "https://registry.npmjs.org/he/-/he-1.2.0.tgz",
@ -720,6 +738,16 @@
"he": "bin/he"
}
},
"node_modules/hmac-drbg": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/hmac-drbg/-/hmac-drbg-1.0.1.tgz",
"integrity": "sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=",
"dependencies": {
"hash.js": "^1.0.3",
"minimalistic-assert": "^1.0.0",
"minimalistic-crypto-utils": "^1.0.1"
}
},
"node_modules/inflight": {
"version": "1.0.6",
"resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@ -733,8 +761,7 @@
"node_modules/inherits": {
"version": "2.0.4",
"resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
"dev": true
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
},
"node_modules/is-binary-path": {
"version": "2.1.0",
@ -868,6 +895,16 @@
"integrity": "sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==",
"dev": true
},
"node_modules/minimalistic-assert": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
"integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A=="
},
"node_modules/minimalistic-crypto-utils": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz",
"integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo="
},
"node_modules/minimatch": {
"version": "3.0.4",
"resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
@ -1823,11 +1860,14 @@
"resolved": "https://registry.npmjs.org/@ethersproject/logger/-/logger-5.0.8.tgz",
"integrity": "sha512-SkJCTaVTnaZ3/ieLF5pVftxGEFX56pTH+f2Slrpv7cU0TNpUZNib84QQdukd++sWUp/S7j5t5NW+WegbXd4U/A=="
},
"@types/bigi": {
"version": "1.4.2",
"resolved": "https://registry.npmjs.org/@types/bigi/-/bigi-1.4.2.tgz",
"integrity": "sha512-St8Vm0x1ApYlU9yNaFx3jBis5JVU6oR/5Xtgvn8+N8Ts8f3ze6kOvAAg0aNkbGMGhhG6PrP0nMOgDI9NMFETkA==",
"dev": true
"@types/bn.js": {
"version": "5.1.0",
"resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-5.1.0.tgz",
"integrity": "sha512-QSSVYj7pYFN49kW77o2s9xTCwZ8F2xLbjLLSEVh8D2F4JUhZtPAGOFLTD+ffqksBx/u4cE/KImFjyhqCjn/LIA==",
"dev": true,
"requires": {
"@types/node": "*"
}
},
"@types/chai": {
"version": "4.2.14",
@ -1835,14 +1875,13 @@
"integrity": "sha512-G+ITQPXkwTrslfG5L/BksmbLUA0M1iybEsmCWPqzSxsRRhJZimBKJkoMi8fr/CPygPTj4zO5pJH7I2/cm9M7SQ==",
"dev": true
},
"@types/ecurve": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/@types/ecurve/-/ecurve-1.0.0.tgz",
"integrity": "sha1-DR/OAi2LqyvEurKMXXgbZCEAGMQ=",
"@types/elliptic": {
"version": "6.4.12",
"resolved": "https://registry.npmjs.org/@types/elliptic/-/elliptic-6.4.12.tgz",
"integrity": "sha512-gP1KsqoouLJGH6IJa28x7PXb3cRqh83X8HCLezd2dF+XcAIMKYv53KV+9Zn6QA561E120uOqZBQ+Jy/cl+fviw==",
"dev": true,
"requires": {
"@types/bigi": "*",
"@types/node": "*"
"@types/bn.js": "*"
}
},
"@types/mocha": {
@ -1921,22 +1960,17 @@
"integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
"dev": true
},
"bigi": {
"version": "1.4.2",
"resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.2.tgz",
"integrity": "sha1-nGZalfiLiwj8Bc/XMfVhhZ1yWCU="
},
"bignumber.js": {
"version": "7.0.2",
"resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-7.0.2.tgz",
"integrity": "sha512-TosM7Yg1Ux0ZCNwwS/tW95r3q9xIZstgsUGKWaez0Cgq8Oy3qia9RGvyG/fbxlQAvigjza1d057QNQLGvYXCeg=="
},
"binary-extensions": {
"version": "2.2.0",
"resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
"integrity": "sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==",
"dev": true
},
"bn.js": {
"version": "5.1.3",
"resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.1.3.tgz",
"integrity": "sha512-GkTiFpjFtUzU9CbMeJ5iazkCzGL3jrhzerzZIuqLABjbwRaFt33I9tUdSNryIptM+RxDet6OKm2WnLXzW51KsQ=="
},
"brace-expansion": {
"version": "1.1.11",
"resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@ -1956,6 +1990,11 @@
"fill-range": "^7.0.1"
}
},
"brorand": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
"integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8="
},
"browser-stdout": {
"version": "1.3.1",
"resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
@ -2128,12 +2167,25 @@
"integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
"dev": true
},
"ecurve": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/ecurve/-/ecurve-1.0.0.tgz",
"integrity": "sha1-Ms/Vzl9CHpNRIGoz1OPP0280ZaQ=",
"elliptic": {
"version": "6.5.4",
"resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
"integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
"requires": {
"bigi": "^1.1.0"
"bn.js": "^4.11.9",
"brorand": "^1.1.0",
"hash.js": "^1.0.0",
"hmac-drbg": "^1.0.1",
"inherits": "^2.0.4",
"minimalistic-assert": "^1.0.1",
"minimalistic-crypto-utils": "^1.0.1"
},
"dependencies": {
"bn.js": {
"version": "4.11.9",
"resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.9.tgz",
"integrity": "sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw=="
}
}
},
"emoji-regex": {
@ -2254,12 +2306,31 @@
"integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
"dev": true
},
"hash.js": {
"version": "1.1.7",
"resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.7.tgz",
"integrity": "sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==",
"requires": {
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"minimalistic-assert": "^1.0.1"
}
},
"he": {
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"resolved": "https://registry.npmjs.org/he/-/he-1.2.0.tgz",
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"dev": true
},
"hmac-drbg": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/hmac-drbg/-/hmac-drbg-1.0.1.tgz",
"integrity": "sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=",
"requires": {
"hash.js": "^1.0.3",
"minimalistic-assert": "^1.0.0",
"minimalistic-crypto-utils": "^1.0.1"
}
},
"inflight": {
"version": "1.0.6",
"resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@ -2273,8 +2344,7 @@
"inherits": {
"version": "2.0.4",
"resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
"dev": true
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
},
"is-binary-path": {
"version": "2.1.0",
@ -2378,6 +2448,16 @@
"integrity": "sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==",
"dev": true
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"integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo="
},
"minimatch": {
"version": "3.0.4",
"resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",

+ 4
- 5
package.json
View File

@ -16,14 +16,13 @@
"license": "GPL-3.0",
"dependencies": {
"@ethersproject/keccak256": "5.0.7",
"bigi": "^1.4.2",
"bignumber.js": "7.0.2",
"ecurve": "1.0.0"
"bn.js": "^5.1.3",
"elliptic": "^6.5.4"
},
"devDependencies": {
"@types/bigi": "^1.4.2",
"@types/bn.js": "^5.1.0",
"@types/chai": "^4.2.14",
"@types/ecurve": "^1.0.0",
"@types/elliptic": "^6.4.12",
"@types/mocha": "^8.2.0",
"@types/node": "^14.14.25",
"chai": "^4.2.0",

+ 54
- 43
src/index.ts
View File

@ -1,71 +1,82 @@
import { randomBytes } from 'crypto'
import * as BigInteger from 'bigi'
import { getCurveByName, Point } from 'ecurve'
import * as BigNumber from 'bn.js'
import { ec, curve } from 'elliptic'
import { keccak256 } from "@ethersproject/keccak256"
const ecparams = getCurveByName('secp256k1')
const G = ecparams.G
const n = ecparams.n as BigInteger
export type Point = curve.base.BasePoint
export { BigNumber }
export { ecparams }
const secp256k1 = new ec("secp256k1")
const G: Point = secp256k1.g
const n = secp256k1.n // as BigNumber
export type UserSecretData = { a: BigInteger, b: BigInteger, f: Point }
export type UnblindedSignature = { s: BigInteger, f: Point }
export const ecParams = { G, n }
export function newBigFromString(s: string) {
let a = new BigInteger(null, null, null)
a.fromString(s, null)
return a
export type UserSecretData = { a: BigNumber, b: BigNumber, f: Point }
export type UnblindedSignature = { s: BigNumber, f: Point }
export function hashBigNumber(m: BigNumber) {
const mHex = m.toString(16)
if (mHex.length % 2 == 0)
return keccak256('0x' + mHex).slice(2) // Trim 0x
else
return keccak256('0x0' + mHex).slice(2) // Trim 0x
}
export function bigNumberFromString(s: string) {
return new BigNumber(s)
}
function random(bytes: number) {
let k: BigInteger
let k: BigNumber
do {
k = BigInteger.fromByteArrayUnsigned(randomBytes(bytes)) as unknown as BigInteger
k = new BigNumber(randomBytes(bytes))
} while (k.toString() == "0" && k.gcd(n).toString() != "1")
return k
}
export function newKeyPair() {
const sk = random(32)
return { sk: sk, pk: G.multiply(sk) }
return { sk: sk, pk: G.mul(sk) }
}
export function newRequestParameters() {
const k = random(32)
return { k: k, signerR: G.multiply(k) }
return { k: k, signerR: G.mul(k) }
}
/**
* Blinds the message for the signer R.
* @param {BigInteger} m
* @param {BigNumber} m
* @param {Point} signerR
* @returns {struct} {mBlinded: BigInteger, userSecretData: {a: BigInteger, b: BigInteger, f: Point}}
* @returns {struct} {mBlinded: BigNumber, userSecretData: {a: BigNumber, b: BigNumber, f: Point}}
*/
export function blind(m: BigInteger, signerR: Point): { mBlinded: BigInteger, userSecretData: UserSecretData } {
const u: UserSecretData = { a: BigInteger.ZERO as BigInteger, b: BigInteger.ZERO as BigInteger, f: G }
export function blind(m: BigNumber, signerR: Point): { mBlinded: BigNumber, userSecretData: UserSecretData } {
const u: UserSecretData = { a: new BigNumber(0), b: new BigNumber(0), f: G }
u.a = random(32)
u.b = random(32)
const aR = signerR.multiply(u.a)
const bG = G.multiply(u.b)
const aR = signerR.mul(u.a)
const bG = G.mul(u.b)
u.f = aR.add(bG)
const rx = u.f.affineX.mod(n)
const rx = u.f.getX().mod(n)
const ainv = u.a.modInverse(n as unknown as number)
const ainvrx = ainv.multiply(rx)
const ainv = u.a.invm(n)
const ainvrx = ainv.mul(rx)
const mHex = m.toString(16)
const hHex = keccak256('0x' + mHex)
const h = BigInteger.fromHex(hHex.slice(2))
const mBlinded = ainvrx.multiply(h)
// const mHex = m.toString(16)
const hHex = hashBigNumber(m)
const h = new BigNumber(Buffer.from(hHex, "hex"))
const mBlinded = ainvrx.mul(h)
return { mBlinded: mBlinded.mod(n), userSecretData: u }
}
export function blindSign(sk: BigInteger, mBlinded: BigInteger, k: BigInteger): BigInteger {
let sBlind = sk.multiply(mBlinded)
export function blindSign(sk: BigNumber, mBlinded: BigNumber, k: BigNumber): BigNumber {
let sBlind = sk.mul(mBlinded)
sBlind = sBlind.add(k)
return sBlind.mod(n)
}
@ -76,27 +87,27 @@ export function blindSign(sk: BigInteger, mBlinded: BigInteger, k: BigInteger):
* @param userSecretData
* @returns unblinded signature
*/
export function unblind(sBlind: BigInteger, userSecretData: UserSecretData): UnblindedSignature {
const s = userSecretData.a.multiply(sBlind).add(userSecretData.b)
export function unblind(sBlind: BigNumber, userSecretData: UserSecretData): UnblindedSignature {
const s = userSecretData.a.mul(sBlind).add(userSecretData.b)
return { s: s.mod(n), f: userSecretData.f }
}
export function verify(m: BigInteger, s: UnblindedSignature, q: Point) {
const sG = G.multiply(s.s)
export function verify(m: BigNumber, s: UnblindedSignature, q: Point) {
const sG = G.mul(s.s)
const mHex = m.toString(16)
const hHex = keccak256('0x' + mHex)
const h = BigInteger.fromHex(hHex.slice(2))
const hHex = hashBigNumber(m)
const h = new BigNumber(Buffer.from(hHex, "hex"))
const rx = s.f.affineX.mod(n)
const rx = s.f.getX().mod(n)
const right = s.f.add(
q.multiply(
rx.multiply(h)
q.mul(
rx.mul(h)
)
)
if ((sG.affineX.toString() == right.affineX.toString())
&& (sG.affineY.toString() == right.affineY.toString())) {
if ((sG.getX().toString() == right.getX().toString())
&& (sG.getY().toString() == right.getY().toString())) {
return true
}
return false

+ 20
- 11
test/index.test.ts
View File

@ -1,18 +1,27 @@
import * as assert from 'assert'
import * as BigInteger from 'bigi'
// import { Point } from 'ecurve'
import { keccak256 } from "@ethersproject/keccak256"
import { newBigFromString, ecparams, newKeyPair, newRequestParameters, blind, blindSign, unblind, verify } from "../src/index"
import {
bigNumberFromString,
ecParams,
newKeyPair,
newRequestParameters,
blind,
blindSign,
unblind,
verify,
hashBigNumber,
Point,
BigNumber
} from "../src/index"
describe("keccak256", function () {
it("keccak256", async () => {
const m = BigInteger.fromBuffer(Buffer.from("test", 'utf8'))
const mHex = m.toString(16)
const hHex = keccak256('0x' + mHex)
assert.strictEqual('0x9c22ff5f21f0b81b113e63f7db6da94fedef11b2119b4088b89664fb9a3cb658', hHex)
const h = BigInteger.fromHex(hHex.slice(2))
assert.strictEqual('70622639689279718371527342103894932928233838121221666359043189029713682937432', h.toString())
const msg = Buffer.from("test", 'utf8')
const m = new BigNumber(msg)
const hHex = hashBigNumber(m)
assert.strictEqual(hHex, '9c22ff5f21f0b81b113e63f7db6da94fedef11b2119b4088b89664fb9a3cb658')
const h = new BigNumber(Buffer.from(hHex, "hex"))
assert.strictEqual(h.toString(), '70622639689279718371527342103894932928233838121221666359043189029713682937432')
})
})
@ -22,7 +31,7 @@ describe("test blind", function () {
const { k, signerR } = newRequestParameters()
const msg = BigInteger.fromBuffer(
const msg = new BigNumber(
Buffer.from("test", 'utf8')
)
assert.strictEqual('1952805748', msg.toString())

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