Encode key as base58

This commit is contained in:
Harald Leithner 2019-05-08 15:25:42 +02:00
parent 0e18b5d0c1
commit 4aab3c0061
4 changed files with 154 additions and 3 deletions

148
js/base-x-3.0.5.1.js Normal file
View File

@ -0,0 +1,148 @@
// base-x encoding / decoding
// based on https://github.com/cryptocoinjs/base-x 3.0.5
// modification: removed Buffer dependency and node.modules entry
// Copyright (c) 2018 base-x contributors
// Copyright (c) 2014-2018 The Bitcoin Core developers (base58.cpp)
// Distributed under the MIT software license, see the accompanying
// file LICENSE or http://www.opensource.org/licenses/mit-license.php.
var baseX = function base (ALPHABET) {
if (ALPHABET.length >= 255) throw new TypeError('Alphabet too long')
const BASE_MAP = new Uint8Array(256)
BASE_MAP.fill(255)
for (let i = 0; i < ALPHABET.length; i++) {
const x = ALPHABET.charAt(i)
const xc = x.charCodeAt(0)
if (BASE_MAP[xc] !== 255) throw new TypeError(x + ' is ambiguous')
BASE_MAP[xc] = i
}
const BASE = ALPHABET.length
const LEADER = ALPHABET.charAt(0)
const FACTOR = Math.log(BASE) / Math.log(256) // log(BASE) / log(256), rounded up
const iFACTOR = Math.log(256) / Math.log(BASE) // log(256) / log(BASE), rounded up
function encode (source) {
if (source.length === 0) return ''
// Skip & count leading zeroes.
let zeroes = 0
let length = 0
let pbegin = 0
const pend = source.length
while (pbegin !== pend && source[pbegin] === 0) {
pbegin++
zeroes++
}
// Allocate enough space in big-endian base58 representation.
const size = ((pend - pbegin) * iFACTOR + 1) >>> 0
const b58 = new Uint8Array(size)
// Process the bytes.
while (pbegin !== pend) {
let carry = source[pbegin]
// Apply "b58 = b58 * 256 + ch".
let i = 0
for (let it = size - 1; (carry !== 0 || i < length) && (it !== -1); it--, i++) {
carry += (256 * b58[it]) >>> 0
b58[it] = (carry % BASE) >>> 0
carry = (carry / BASE) >>> 0
}
if (carry !== 0) throw new Error('Non-zero carry')
length = i
pbegin++
}
// Skip leading zeroes in base58 result.
let it = size - length
while (it !== size && b58[it] === 0) {
it++
}
// Translate the result into a string.
let str = LEADER.repeat(zeroes)
for (; it < size; ++it) str += ALPHABET.charAt(b58[it])
return str
}
function decodeUnsafe (source) {
if (typeof source !== 'string') throw new TypeError('Expected String')
if (source.length === 0) return ''
let psz = 0
// Skip leading spaces.
if (source[psz] === ' ') return
// Skip and count leading '1's.
let zeroes = 0
let length = 0
while (source[psz] === LEADER) {
zeroes++
psz++
}
// Allocate enough space in big-endian base256 representation.
const size = (((source.length - psz) * FACTOR) + 1) >>> 0 // log(58) / log(256), rounded up.
const b256 = new Uint8Array(size)
// Process the characters.
while (source[psz]) {
// Decode character
let carry = BASE_MAP[source.charCodeAt(psz)]
// Invalid character
if (carry === 255) return
let i = 0
for (let it = size - 1; (carry !== 0 || i < length) && (it !== -1); it--, i++) {
carry += (BASE * b256[it]) >>> 0
b256[it] = (carry % 256) >>> 0
carry = (carry / 256) >>> 0
}
if (carry !== 0) throw new Error('Non-zero carry')
length = i
psz++
}
// Skip trailing spaces.
if (source[psz] === ' ') return
// Skip leading zeroes in b256.
let it = size - length
while (it !== size && b256[it] === 0) {
it++
}
var vch = [];
let j = zeroes
while (it !== size) {
vch[j++] = b256[it++]
}
return vch
}
function decode (string) {
const buffer = decodeUnsafe(string)
if (buffer) return buffer
throw new Error('Non-base' + BASE + ' character')
}
return {
encode: encode,
decodeUnsafe: decodeUnsafe,
decode: decode
}
}

View File

@ -643,7 +643,8 @@ jQuery.PrivateBin = (function($, sjcl, Base64, RawDeflate) {
*/
me.getSymmetricKey = function()
{
return sjcl.codec.base64.fromBits(sjcl.random.randomWords(8, 10), 0);
var bs58 = new baseX('123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz');
return bs58.encode(sjcl.codec.base64.fromBits(sjcl.random.randomWords(8, 10), 0));
};
return me;

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@ -60,6 +60,7 @@ else:
<?php
endif;
?>
<script type="text/javascript" data-cfasync="false" src="js/base-x-3.0.5.1.js" integrity="sha512-tZCra9cpyEtRlLCuglgHQ1pZyX1yZ09NYTTUawN/ptrXkK5I2ndKCWdrswIGGq4fYb2LVcodw3lEzT1UiHlCEg==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/rawdeflate-0.5.js" integrity="sha512-tTdZ7qMr7tt5VQy4iCHu6/aGB12eRwbUy+AEI5rXntfsjcRfBeeqJloMsBU9FrGk1bIYLiuND/FhU42LO1bi0g==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/rawinflate-0.3.js" integrity="sha512-g8uelGgJW9A/Z1tB6Izxab++oj5kdD7B4qC7DHwZkB6DGMXKyzx7v5mvap2HXueI2IIn08YlRYM56jwWdm2ucQ==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/bootstrap-3.3.7.js" integrity="sha512-iztkobsvnjKfAtTNdHkGVjAYTrrtlC7mGp/54c40wowO7LhURYl3gVzzcEqGl/qKXQltJ2HwMrdLcNUdo+N/RQ==" crossorigin="anonymous"></script>
@ -76,7 +77,7 @@ if ($MARKDOWN):
endif;
?>
<script type="text/javascript" data-cfasync="false" src="js/purify-1.0.7.js" integrity="sha512-VnKJHLosO8z2ojNvWk9BEKYqnhZyWK9rM90FgZUUEp/PRnUqR5OLLKE0a3BkVmn7YgB7LXRrjHgFHQYKd6DAIA==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-tRRKkyV2RYlU1b/PdUmLigAV8mAQpklblVO071AcQs5QbeUwBnK2L5zjbscm2+B2eRJ06luEisXuPowvFHN6fA==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-zkRNN1TQ1h2agLdyIpjZ7ALamBxeSbmSA1eDUhEZeNyPXq2XiERPacNXyO8dvxW5oShb8VyTgQ0ueNUKgRsQSQ==" crossorigin="anonymous"></script>
<!--[if lt IE 10]>
<style type="text/css">body {padding-left:60px;padding-right:60px;} #ienotice {display:block;} #oldienotice {display:block;}</style>
<![endif]-->

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@ -39,6 +39,7 @@ else:
<?php
endif;
?>
<script type="text/javascript" data-cfasync="false" src="js/base-x-3.0.5.1.js" integrity="sha512-tZCra9cpyEtRlLCuglgHQ1pZyX1yZ09NYTTUawN/ptrXkK5I2ndKCWdrswIGGq4fYb2LVcodw3lEzT1UiHlCEg==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/rawdeflate-0.5.js" integrity="sha512-tTdZ7qMr7tt5VQy4iCHu6/aGB12eRwbUy+AEI5rXntfsjcRfBeeqJloMsBU9FrGk1bIYLiuND/FhU42LO1bi0g==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/rawinflate-0.3.js" integrity="sha512-g8uelGgJW9A/Z1tB6Izxab++oj5kdD7B4qC7DHwZkB6DGMXKyzx7v5mvap2HXueI2IIn08YlRYM56jwWdm2ucQ==" crossorigin="anonymous"></script>
<?php
@ -54,7 +55,7 @@ if ($MARKDOWN):
endif;
?>
<script type="text/javascript" data-cfasync="false" src="js/purify-1.0.7.js" integrity="sha512-VnKJHLosO8z2ojNvWk9BEKYqnhZyWK9rM90FgZUUEp/PRnUqR5OLLKE0a3BkVmn7YgB7LXRrjHgFHQYKd6DAIA==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-tRRKkyV2RYlU1b/PdUmLigAV8mAQpklblVO071AcQs5QbeUwBnK2L5zjbscm2+B2eRJ06luEisXuPowvFHN6fA==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-zkRNN1TQ1h2agLdyIpjZ7ALamBxeSbmSA1eDUhEZeNyPXq2XiERPacNXyO8dvxW5oShb8VyTgQ0ueNUKgRsQSQ==" crossorigin="anonymous"></script>
<!--[if lt IE 10]>
<style type="text/css">body {padding-left:60px;padding-right:60px;} #ienotice {display:block;} #oldienotice {display:block;}</style>
<![endif]-->