zervo/vanity-eth
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Compute difficulty and probability, add stop button & checksum checkbox

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This commit is contained in:
Boris Kubiak 2017-12-22 20:59:53 +01:00
parent 3b35d63a10
commit a2fcb0e686
6 changed files with 1601 additions and 27 deletions
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21
index.html
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@ -8,11 +8,24 @@
<title>Vanity ETH</title>
</head>
<body>
<input type="text" value="ab" id="pattern">
<input type="button" id="btn" value="Generate">
<div id="counter-wrapper">
<div id="counter"></div>
<div>
<label for="pattern">Pattern</label>
<input type="text" value="ab" id="pattern">
</div>
<div>
<label for="checksum">Case-sensitive</label>
<input type="checkbox" id="checksum" checked>
</div>
<button id="gen">
Generate
</button>
<button id="stop">
Stop
</button>
<div id="difficulty"></div>
<div id="counter"></div>
<div id="speed"></div>
<div id="probability"></div>
<div id="result"></div>
<script src="js/bundle.js" type="text/javascript"></script>
</body>

2
js/bundle.js
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File diff suppressed because one or more lines are too long

47
js/index.js
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@ -3,24 +3,39 @@
const vanity = require('./vanity');
let count = 0;
const step = 100;
let stop = false;
let lastTick = null;
let difficulty = 0;
const step = 250;
const counter = document.getElementById('counter');
const speed = document.getElementById('speed');
const probability = document.getElementById('probability');
const parseInput = () => {
return {
pattern: document.getElementById('pattern').value,
checksum: true
checksum: document.getElementById('checksum').checked
};
};
const incrementCounter = incr => {
count += incr;
counter.innerHTML = count.toString() + ' addresses generated';
counter.innerText = count.toString() + (count === 1 ? ' address' : ' addresses') + ' generated';
const currentTick = performance.now();
speed.innerText = Math.floor(1000 * incr / (currentTick - lastTick)) + ' addresses / second';
lastTick = currentTick;
};
const updateStats = () => {
const prob = Math.round(10000 * vanity.computeProbability(difficulty, count)) / 100;
probability.innerText = 'Probability: ' + prob + '%';
};
const displayResult = result => {
incrementCounter(result.attempts);
document.getElementById('result').innerHTML = 'address: ' + result.address + '<br>key: ' + result.privKey;
incrementCounter(result ? result.attempts : 0);
updateStats();
document.getElementById('result').innerHTML = result ? 'address: ' + result.address + '<br>key: ' + result.privKey : '';
};
const generate = input => {
@ -30,16 +45,28 @@ const generate = input => {
}
incrementCounter(step);
updateStats();
if (stop) {
return;
}
// Use setTimeout to let the browser render
setTimeout(() => {
generate(input);
}, 0);
setTimeout(() => generate(input), 0);
};
// Add event listener on button
document.getElementById('btn').addEventListener('click', () => {
// Add event listeners on buttons
document.getElementById('gen').addEventListener('click', () => {
incrementCounter(-count);
displayResult(null);
stop = false;
const input = parseInput();
difficulty = vanity.computeDifficulty(input.pattern, input.checksum);
document.getElementById('difficulty').innerText = 'difficulty: ' + difficulty;
generate(input);
});
document.getElementById('stop').addEventListener('click', () => {
stop = true;
});

18
js/vanity.js
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@ -6,7 +6,7 @@ const ERRORS = {
};
/**
* Create a random wallet from a random private key
* Create a wallet from a random private key
* @returns {{address: string, privKey: string}}
*/
const getRandomWallet = () => {
@ -37,6 +37,14 @@ const isValidVanityWallet = (wallet, input, isChecksum) => {
return address.substr(2, input.length) === input;
};
const computeDifficulty = (pattern, isChecksum) => {
return Math.pow(isChecksum ? 22 : 16, pattern.length);
};
const computeProbability = (difficulty, attempts) => {
return 1 - Math.pow((difficulty - 1) / difficulty, attempts);
};
/**
* Generate a lot of wallets until one satisfies the input constraints
* @param input
@ -60,14 +68,14 @@ const getVanityWallet = (input, isChecksum, max) => {
return null;
}
}
if (isChecksum) {
_wallet.address = ethUtils.toChecksumAddress(_wallet.address);
}
_wallet.address = ethUtils.toChecksumAddress(_wallet.address);
_wallet.attempts = attempts;
return _wallet;
};
module.exports = {
getVanityWallet
getVanityWallet,
computeDifficulty,
computeProbability
};

1527
package-lock.json generated
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File diff suppressed because it is too large Load diff

13
package.json
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@ -9,19 +9,18 @@
"gulp": "^3.9.1",
"gulp-babel": "^7.0.0",
"gulp-uglify": "^3.0.0",
"husky": "^0.14.3",
"pump": "^2.0.0",
"randombytes": "^2.0.5",
"vinyl-source-stream": "^1.1.0"
"vinyl-source-stream": "^1.1.0",
"xo": "^0.18.2"
},
"license": "ISC",
"main": "index.js",
"scripts": {
"build": "node ./node_modules/gulp/bin/gulp.js build",
"test": "echo \"Error: no test specified\" && exit 1",
"watch": "node ./node_modules/gulp/bin/gulp.js watch",
"precommit": "npm run-script build && git add js/bundle.js"
},
"devDependencies": {
"husky": "^0.14.3"
"precommit": "npm run-script build && git add js/bundle.js",
"test": "node ./node_modules/xo/cli.js",
"watch": "node ./node_modules/gulp/bin/gulp.js watch"
}
}