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Allow both prefix & suffix #57

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Jun 26, 2023
Merged

Allow both prefix & suffix #57

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17 changes: 9 additions & 8 deletions src/App.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,8 @@
<!--Statistics-->
<div class="col-md-6">
<statistics
:hex="input.hex"
:prefix="input.prefix"
:suffix="input.suffix"
:checksum="input.checksum"
:status="status"
:first-tick="firstTick"
Expand Down Expand Up @@ -83,7 +84,7 @@
threads: 4,
cores: 0,
result: { address: '', privateKey: '' },
input: { hex: '', checksum: true, suffix: false },
input: { prefix: '', suffix: '', checksum: true },
firstTick: null,
error: null,
};
Expand All @@ -99,15 +100,15 @@
setInput: function (inputType, value) {
// eslint-disable-next-line default-case
switch (inputType) {
case 'hex':
this.input.hex = value;
break;
case 'checksum':
this.input.checksum = value;
case 'prefix':
this.input.prefix = value;
break;
case 'suffix':
this.input.suffix = value;
break;
case 'checksum':
this.input.checksum = value;
break;
case 'threads':
this.threads = value;
}
Expand Down Expand Up @@ -256,7 +257,7 @@
worker.terminate();
}
};
const input = { checksum: true, hex: 'f'.repeat(5), suffix: false };
const input = { checksum: true, prefix: 'f'.repeat(5), suffix: '' };
console.info('Starting benchmark with 1 core...');
worker.postMessage(input);
},
Expand Down
49 changes: 29 additions & 20 deletions src/js/vanity.js
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Original file line number Diff line number Diff line change
Expand Up @@ -27,35 +27,42 @@ const getRandomWallet = () => {

/**
* Check if a wallet respects the input constraints
* @param address
* @param input
* @param isChecksum
* @param isSuffix
* @param address - Wallet address
* @param prefix - Prefix chosen by the user
* @param suffix - Suffix chosen by the user
* @param isChecksum - Is the input case-sensitive
* @returns {boolean}
*/
const isValidVanityAddress = (address, input, isChecksum, isSuffix) => {
const subStr = isSuffix ? address.substr(40 - input.length) : address.substr(0, input.length);
const isValidVanityAddress = (address, prefix, suffix, isChecksum) => {
const addressPrefix = address.substring(0, prefix.length);
const addressSuffix = address.substring(40 - suffix.length);

if (!isChecksum) {
return input === subStr;
return prefix === addressPrefix && suffix === addressSuffix;
}
if (input.toLowerCase() !== subStr) {
if (prefix.toLowerCase() !== addressPrefix || suffix.toLowerCase() !== addressSuffix) {
return false;
}

return isValidChecksum(address, input, isSuffix);
return isValidChecksum(address, prefix, suffix);
};

const isValidChecksum = (address, input, isSuffix) => {
const isValidChecksum = (address, prefix, suffix) => {
const hash = keccak('keccak256').update(address).digest().toString('hex');
const shift = isSuffix ? 40 - input.length : 0;

for (let i = 0; i < input.length; i++) {
const j = i + shift;
if (input[i] !== (parseInt(hash[j], 16) >= 8 ? address[j].toUpperCase() : address[j])) {
for (let i = 0; i < prefix.length; i++) {
if (prefix[i] !== (parseInt(hash[i], 16) >= 8 ? address[i].toUpperCase() : address[i])) {
return false;
}
}

for (let i = 0; i < suffix.length; i++) {
const j = i + 40 - suffix.length;
if (suffix[i] !== (parseInt(hash[j], 16) >= 8 ? address[j].toUpperCase() : address[j])) {
return false;
}
}

return true;
};

Expand All @@ -70,18 +77,20 @@ const toChecksumAddress = (address) => {

/**
* Generate a lot of wallets until one satisfies the input constraints
* @param input - String chosen by the user
* @param prefix - Prefix chosen by the user
* @param suffix - Suffix chosen by the user
* @param isChecksum - Is the input case-sensitive
* @param isSuffix - Is it a suffix, or a prefix
* @param cb - Callback called after x attempts, or when an address if found
* @returns
*/
const getVanityWallet = (input, isChecksum, isSuffix, cb) => {
input = isChecksum ? input : input.toLowerCase();
const getVanityWallet = (prefix, suffix, isChecksum, cb) => {
let wallet = getRandomWallet();
let attempts = 1;

while (!isValidVanityAddress(wallet.address, input, isChecksum, isSuffix)) {
const pre = isChecksum ? prefix : prefix.toLowerCase();
const suf = isChecksum ? suffix : suffix.toLowerCase();

while (!isValidVanityAddress(wallet.address, pre, suf, isChecksum)) {
if (attempts >= step) {
cb({ attempts });
attempts = 0;
Expand All @@ -95,7 +104,7 @@ const getVanityWallet = (input, isChecksum, isSuffix, cb) => {
onmessage = function (event) {
const input = event.data;
try {
getVanityWallet(input.hex, input.checksum, input.suffix, (message) => postMessage(message));
getVanityWallet(input.prefix, input.suffix, input.checksum, (message) => postMessage(message));
} catch (err) {
self.postMessage({ error: err.toString() });
}
Expand Down
105 changes: 58 additions & 47 deletions src/vue/Input.vue
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Original file line number Diff line number Diff line change
@@ -1,15 +1,32 @@
<template>
<div class="panel" id="input-panel">
<form :class="{ error: inputError }" @submit.prevent="startGen">
<div class="error-text">Numbers and letters from A to F only</div>
<input
type="text"
class="text-input-large"
id="input"
:placeholder="suffix ? 'Suffix' : 'Prefix'"
v-model="hex"
:disabled="running"
/>
<form @submit.prevent="startGen">
<div class="error-text" v-if="inputError">Numbers and letters from A to F only</div>

<div class="row">
<div class="col-12 col-sm-6 col-md-12 col-lg-6">
<input
:class="{ error: prefixError }"
type="text"
class="text-input-large"
id="input"
placeholder="Prefix"
v-model="prefix"
:disabled="running"
/>
</div>
<div class="col-12 col-sm-6 col-md-12 col-lg-6">
<input
:class="{ error: suffixError }"
type="text"
class="text-input-large"
id="input"
placeholder="Suffix"
v-model="suffix"
:disabled="running"
/>
</div>
</div>
<div class="row justify-content-center hide-render">
<div class="spinner">
<div></div>
Expand All @@ -20,31 +37,22 @@
</div>
<div class="example hide-prerender">
E.g.&nbsp;
<span class="monospace">
<span v-if="inputError" class="monospace">N/A</span>
<span v-else class="monospace">
0x<!--
--><b v-if="!suffix" v-text="example.chosen"></b
--><b v-if="example.prefix" v-text="example.prefix"></b
><!--
--><span v-text="example.random"></span
><!--
--><b v-if="suffix" v-text="example.chosen"></b>
--><b v-if="example.suffix" v-text="example.suffix"></b>
</span>
</div>
<div class="row controls hide-prerender">
<div class="col-12 col-sm-6 col-md-12 col-lg-6">
<label class="checkbox">
<input type="checkbox" name="checkbox" checked="" v-model="checksum" :disabled="running" />
<i class="left"> </i>
Case-sensitive
</label>
</div>
<div class="col-12 col-sm-6 col-md-12 col-lg-6">
<span>Prefix</span>
<label class="switch">
<input type="checkbox" v-model="suffix" :disabled="running" />
<span class="slider"></span>
</label>
<span>Suffix</span>
</div>
<div class="controls hide-prerender">
<label class="checkbox">
<input type="checkbox" name="checkbox" checked="" v-model="checksum" :disabled="running" />
<i class="left"> </i>
Case-sensitive
</label>
</div>
<div class="threads hide-prerender">
<input
Expand Down Expand Up @@ -105,26 +113,33 @@
data: function () {
return {
threads: this.$props.cores || 4,
hex: '',
prefix: '',
suffix: '',
checksum: true,
suffix: false,
error: false,
};
},
computed: {
prefixError: function () {
return !isValidHex(this.prefix);
},
suffixError: function () {
return !isValidHex(this.suffix);
},
inputError: function () {
return !isValidHex(this.hex);
return this.prefixError || this.suffixError;
},
example: function () {
if (this.inputError) {
return 'N/A';
return null;
}
const chosen = this.checksum ? this.hex : mixCase(this.hex);
const prefix = this.checksum ? this.prefix : mixCase(this.prefix);
const suffix = this.checksum ? this.suffix : mixCase(this.suffix);
let random = '';
for (let i = 0; i < 40 - this.hex.length; i++) {
for (let i = 0; i < 40 - this.prefix.length - this.suffix.length; i++) {
random += mixCase(Math.floor(Math.random() * 16).toString(16));
}
return { random, chosen };
return { random, prefix, suffix };
},
},
methods: {
Expand All @@ -138,15 +153,15 @@
},
},
watch: {
hex: function () {
this.$emit('input-change', 'hex', this.hex);
},
checksum: function () {
this.$emit('input-change', 'checksum', this.checksum);
prefix: function () {
this.$emit('input-change', 'prefix', this.prefix);
},
suffix: function () {
this.$emit('input-change', 'suffix', this.suffix);
},
checksum: function () {
this.$emit('input-change', 'checksum', this.checksum);
},
threads: function () {
this.$emit('input-change', 'threads', this.threads);
},
Expand All @@ -160,15 +175,11 @@
min-height: 280px

.error-text
display: none
font-size: 14px
color: $error

.error
input[type="text"]
border: 1px solid $error
.error-text
display: block
input.error
border: 1px solid $error

.example
font-size: 14px
Expand Down
6 changes: 5 additions & 1 deletion src/vue/Result.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@
</div>
<div class="col-lg-2 col-12">
<button data-remodal-target="modal" class="save button-large" :disabled="!privateKey">
<i class="icon-lock"></i>&nbsp;&nbsp;&nbsp;Save
<i class="icon-lock"></i>Save
</button>
</div>
</div>
Expand Down Expand Up @@ -74,6 +74,10 @@

.save
margin-top: 30px
i
margin-right: 8px
top: 2px
position: relative

@media screen and (min-width: 992px)
.save
Expand Down
1 change: 1 addition & 0 deletions src/vue/Save.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -134,6 +134,7 @@
margin-bottom: 45px
.remodal-close
outline: none
margin: 8px
&:before
font-size: 2em
&:hover
Expand Down
15 changes: 10 additions & 5 deletions src/vue/Statistics.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,8 @@
<script>
import humanizeDuration from 'humanize-duration';

const computeDifficulty = function (pattern, isChecksum) {
const computeDifficulty = function (prefix, suffix, isChecksum) {
const pattern = prefix + suffix;
const ret = Math.pow(16, pattern.length);
return isChecksum ? ret * Math.pow(2, pattern.replace(/[^a-f]/gi, '').length) : ret;
};
Expand All @@ -46,13 +47,17 @@
};
},
props: {
hex: String,
prefix: String,
suffix: String,
checksum: Boolean,
status: String,
firstTick: {},
},
watch: {
hex() {
prefix() {
this.count = 0;
},
suffix() {
this.count = 0;
},
checksum() {
Expand All @@ -61,10 +66,10 @@
},
computed: {
inputError: function () {
return !isValidHex(this.hex);
return !isValidHex(this.prefix) || !isValidHex(this.suffix);
},
difficulty: function () {
return this.inputError ? 'N/A' : computeDifficulty(this.hex, this.checksum);
return this.inputError ? 'N/A' : computeDifficulty(this.prefix, this.suffix, this.checksum);
},
probability50() {
return this.inputError ? 0 : Math.floor(Math.log(0.5) / Math.log(1 - 1 / this.difficulty));
Expand Down