zervo/vanity-eth
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Improve perfs, get rid of ethereumjs-util

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This commit is contained in:
Boris Kubiak 2018-03-08 08:46:06 +01:00
parent f4d2ee1532
commit 5836433c92
3 changed files with 32 additions and 97 deletions

88
package-lock.json generated
View file

@ -978,37 +978,6 @@
}
}
},
"babel-preset-es2015": {
"version": "6.24.1",
"resolved": "https://registry.npmjs.org/babel-preset-es2015/-/babel-preset-es2015-6.24.1.tgz",
"integrity": "sha1-1EBQ1rwsn+6nAqrzjXJ6AhBTiTk=",
"requires": {
"babel-plugin-check-es2015-constants": "6.22.0",
"babel-plugin-transform-es2015-arrow-functions": "6.22.0",
"babel-plugin-transform-es2015-block-scoped-functions": "6.22.0",
"babel-plugin-transform-es2015-block-scoping": "6.26.0",
"babel-plugin-transform-es2015-classes": "6.24.1",
"babel-plugin-transform-es2015-computed-properties": "6.24.1",
"babel-plugin-transform-es2015-destructuring": "6.23.0",
"babel-plugin-transform-es2015-duplicate-keys": "6.24.1",
"babel-plugin-transform-es2015-for-of": "6.23.0",
"babel-plugin-transform-es2015-function-name": "6.24.1",
"babel-plugin-transform-es2015-literals": "6.22.0",
"babel-plugin-transform-es2015-modules-amd": "6.24.1",
"babel-plugin-transform-es2015-modules-commonjs": "6.26.0",
"babel-plugin-transform-es2015-modules-systemjs": "6.24.1",
"babel-plugin-transform-es2015-modules-umd": "6.24.1",
"babel-plugin-transform-es2015-object-super": "6.24.1",
"babel-plugin-transform-es2015-parameters": "6.24.1",
"babel-plugin-transform-es2015-shorthand-properties": "6.24.1",
"babel-plugin-transform-es2015-spread": "6.22.0",
"babel-plugin-transform-es2015-sticky-regex": "6.24.1",
"babel-plugin-transform-es2015-template-literals": "6.22.0",
"babel-plugin-transform-es2015-typeof-symbol": "6.23.0",
"babel-plugin-transform-es2015-unicode-regex": "6.24.1",
"babel-plugin-transform-regenerator": "6.26.0"
}
},
"babel-preset-stage-3": {
"version": "6.24.1",
"resolved": "https://registry.npmjs.org/babel-preset-stage-3/-/babel-preset-stage-3-6.24.1.tgz",
@ -1083,15 +1052,6 @@
"to-fast-properties": "1.0.3"
}
},
"babelify": {
"version": "7.3.0",
"resolved": "https://registry.npmjs.org/babelify/-/babelify-7.3.0.tgz",
"integrity": "sha1-qlau3nBn/XvVSWZu4W3ChQh+iOU=",
"requires": {
"babel-core": "6.26.0",
"object-assign": "4.1.1"
}
},
"babylon": {
"version": "6.18.0",
"resolved": "https://registry.npmjs.org/babylon/-/babylon-6.18.0.tgz",
@ -3037,30 +2997,6 @@
"resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
"integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
},
"ethereumjs-util": {
"version": "5.1.2",
"resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.1.2.tgz",
"integrity": "sha1-JboCFcu0wvCxCKb5avKi5i5Fkh8=",
"requires": {
"babel-preset-es2015": "6.24.1",
"babelify": "7.3.0",
"bn.js": "4.11.8",
"create-hash": "1.1.3",
"ethjs-util": "0.1.4",
"keccak": "1.4.0",
"rlp": "2.0.0",
"secp256k1": "3.4.0"
}
},
"ethjs-util": {
"version": "0.1.4",
"resolved": "https://registry.npmjs.org/ethjs-util/-/ethjs-util-0.1.4.tgz",
"integrity": "sha1-HItoeSV0RO9NPz+7rC3tEs2ZfZM=",
"requires": {
"is-hex-prefixed": "1.0.0",
"strip-hex-prefix": "1.0.0"
}
},
"event-emitter": {
"version": "0.3.5",
"resolved": "https://registry.npmjs.org/event-emitter/-/event-emitter-0.3.5.tgz",
@ -5143,11 +5079,6 @@
"is-extglob": "2.1.1"
}
},
"is-hex-prefixed": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/is-hex-prefixed/-/is-hex-prefixed-1.0.0.tgz",
"integrity": "sha1-fY035q135dEnFIkTxXPggtd39VQ="
},
"is-installed-globally": {
"version": "0.1.0",
"resolved": "https://registry.npmjs.org/is-installed-globally/-/is-installed-globally-0.1.0.tgz",
@ -8427,11 +8358,6 @@
"inherits": "2.0.3"
}
},
"rlp": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/rlp/-/rlp-2.0.0.tgz",
"integrity": "sha1-nbOE/0uJqPYVY9kjldhiWxjzr7A="
},
"run-async": {
"version": "0.1.0",
"resolved": "https://registry.npmjs.org/run-async/-/run-async-0.1.0.tgz",
@ -8541,9 +8467,9 @@
}
},
"secp256k1": {
"version": "3.4.0",
"resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.4.0.tgz",
"integrity": "sha512-eC120ESQ6MB3gMkxj0PVcSjv/9VtSUmm9uPGNc58yTs93iMCUQZ1xeGPidQMY1z1O4psbCtOxRu3vNqpbuck6Q==",
"version": "3.5.0",
"resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.5.0.tgz",
"integrity": "sha512-e5QIJl8W7Y4tT6LHffVcZAxJjvpgE5Owawv6/XCYPQljE9aP2NFFddQ8OYMKhdLshNu88FfL3qCN3/xYkXGRsA==",
"requires": {
"bindings": "1.3.0",
"bip66": "1.1.5",
@ -9232,14 +9158,6 @@
"resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
"integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8="
},
"strip-hex-prefix": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/strip-hex-prefix/-/strip-hex-prefix-1.0.0.tgz",
"integrity": "sha1-DF8VX+8RUTczd96du1iNoFUA428=",
"requires": {
"is-hex-prefixed": "1.0.0"
}
},
"strip-json-comments": {
"version": "2.0.1",
"resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",

3
package.json
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@ -12,12 +12,13 @@
"cross-env": "^5.0.5",
"css-loader": "^0.28.7",
"downloadjs": "^1.4.7",
"ethereumjs-util": "^5.1.2",
"file-loader": "^1.1.6",
"keccak": "^1.4.0",
"node-sass": "^4.5.3",
"randombytes": "^2.0.6",
"remodal": "^1.1.1",
"sass-loader": "^6.0.6",
"secp256k1": "^3.5.0",
"url-loader": "^0.6.2",
"uuid": "^3.2.1",
"vue": "^2.5.11",

38
src/js/vanity.js
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@ -1,10 +1,18 @@
/* eslint-env worker */
const ethUtils = require('ethereumjs-util');
const secp256k1 = require('secp256k1');
const keccak = require('keccak');
const randomBytes = require('randombytes');
const step = 500;
/**
* Transform a private key into an address
*/
const privateToAddress = privateKey => {
const pub = secp256k1.publicKeyCreate(privateKey, false).slice(1);
return keccak('keccak256').update(pub).digest().slice(-20).toString('hex');
};
/**
* Create a wallet from a random private key
* @returns {{address: string, privKey: string}}
@ -12,28 +20,27 @@ const step = 500;
const getRandomWallet = () => {
const randbytes = randomBytes(32);
return {
address: '0x' + ethUtils.privateToAddress(randbytes).toString('hex'),
address: privateToAddress(randbytes).toString('hex'),
privKey: randbytes.toString('hex')
};
};
/**
* Check if a wallet respects the input constraints
* @param wallet
* @param address
* @param input
* @param isChecksum
* @returns {boolean}
*/
const isValidVanityWallet = (wallet, input, isChecksum) => {
const isValidVanityAddress = (address, input, isChecksum) => {
if (!isChecksum) {
return input === wallet.address.substr(2, input.length);
return input === address.substr(0, input.length);
}
if (input.toLowerCase() !== wallet.address.substr(2, input.length)) {
if (input.toLowerCase() !== address.substr(0, input.length)) {
return false;
}
const address = wallet.address.substr(2);
const hash = ethUtils.sha3(address).toString('hex');
const hash = keccak('keccak256').update(address).digest().toString('hex');
for (let i = 0; i < input.length; i++) {
if (input[i] !== (parseInt(hash[i], 16) >= 8 ? address[i].toUpperCase() : address[i])) {
@ -43,6 +50,15 @@ const isValidVanityWallet = (wallet, input, isChecksum) => {
return true;
};
const toChecksumAddress = address => {
const hash = keccak('keccak256').update(address).digest().toString('hex');
let ret = '';
for (let i = 0; i < address.length; i++) {
ret += parseInt(hash[i], 16) >= 8 ? address[i].toUpperCase() : address[i];
}
return ret;
};
/**
* Generate a lot of wallets until one satisfies the input constraints
* @param input
@ -55,7 +71,7 @@ const getVanityWallet = (input, isChecksum, cb) => {
let wallet = getRandomWallet();
let attempts = 1;
while (!isValidVanityWallet(wallet, input, isChecksum)) {
while (!isValidVanityAddress(wallet.address, input, isChecksum)) {
if (attempts >= step) {
cb({attempts});
attempts = 0;
@ -63,7 +79,7 @@ const getVanityWallet = (input, isChecksum, cb) => {
wallet = getRandomWallet();
attempts++;
}
cb({address: ethUtils.toChecksumAddress(wallet.address), privKey: wallet.privKey, attempts});
cb({address: '0x' + toChecksumAddress(wallet.address), privKey: wallet.privKey, attempts});
};
onmessage = function (event) {