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* Add test cases.

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* Improve performance.
This commit is contained in:
emn178
2015-01-26 17:08:36 +08:00
parent f1daa5bc4c
commit 07821b3bac
9 changed files with 90 additions and 34 deletions
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src/sha512.js
+25 -18
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@@ -1,5 +1,5 @@
/*
* js-sha512 v0.1.2
* js-sha512 v0.1.3
* https://github.com/emn178/js-sha512
*
* Copyright 2014-2015, emn178@gmail.com
@@ -10,12 +10,23 @@
;(function(root, undefined) {
'use strict';
var NODE_JS = typeof(module) != 'undefined';
if(NODE_JS) {
root = global;
}
var HEX_CHARS = '0123456789abcdef'.split('');
var SHIFT = [24, 16, 8, 0];
// Class Long
var Long = function(high, low) {
this.high = high << 0;
this.low = low << 0;
};
if(root.JS_SHA512_TEST) {
root.Long = Long;
}
Long.prototype.and = function(other) {
return new Long(this.high & other.high, this.low & other.low);
};
@@ -75,11 +86,16 @@
};
Long.prototype.toHexString = function() {
return toHexString(this.high) + toHexString(this.low);
return HEX_CHARS[(this.high >> 28) & 0x0F] + HEX_CHARS[(this.high >> 24) & 0x0F] +
HEX_CHARS[(this.high >> 20) & 0x0F] + HEX_CHARS[(this.high >> 16) & 0x0F] +
HEX_CHARS[(this.high >> 12) & 0x0F] + HEX_CHARS[(this.high >> 8) & 0x0F] +
HEX_CHARS[(this.high >> 4) & 0x0F] + HEX_CHARS[this.high & 0x0F] +
HEX_CHARS[(this.low >> 28) & 0x0F] + HEX_CHARS[(this.low >> 24) & 0x0F] +
HEX_CHARS[(this.low >> 20) & 0x0F] + HEX_CHARS[(this.low >> 16) & 0x0F] +
HEX_CHARS[(this.low >> 12) & 0x0F] + HEX_CHARS[(this.low >> 8) & 0x0F] +
HEX_CHARS[(this.low >> 4) & 0x0F] + HEX_CHARS[this.low & 0x0F];
};
var HEX_CHARS = '0123456789abcdef'.split('');
var K =[new Long(0x428A2F98, 0xD728AE22), new Long(0x71374491, 0x23EF65CD),
new Long(0xB5C0FBCF, 0xEC4D3B2F), new Long(0xE9B5DBA5, 0x8189DBBC),
new Long(0x3956C25B, 0xF348B538), new Long(0x59F111F1, 0xB605D019),
@@ -279,9 +295,9 @@
blocks[i] = 0;
}
for(i = 0;i < length;++i) {
blocks[i >> 2] |= message.charCodeAt(i) << (3 - (i & 3) << 3);
blocks[i >> 2] |= message.charCodeAt(i) << SHIFT[i & 3];
}
blocks[i >> 2] |= 0x80 << (3 - (i & 3) << 3);
blocks[i >> 2] |= 0x80 << SHIFT[i & 3];
blocks[blockCount - 1] = length << 3; // length * 8
var blocks64 = [];
for(i = 0;i < blockCount;i += 2) {
@@ -300,9 +316,9 @@
blocks[i] = 0;
}
for(i = 0;i < length;++i) {
blocks[i >> 2] |= bytes[i] << (3 - (i & 3) << 3);
blocks[i >> 2] |= bytes[i] << SHIFT[i & 3];
}
blocks[i >> 2] |= 0x80 << (3 - (i & 3) << 3);
blocks[i >> 2] |= 0x80 << SHIFT[i & 3];
blocks[blockCount - 1] = length << 3; // length * 8
var blocks64 = [];
for(i = 0;i < blockCount;i += 2) {
@@ -311,16 +327,7 @@
return blocks64;
};
var toHexString = function(num) {
var hex = '';
for(var i = 0; i < 4; i++) {
var offset = 3 - i << 3;
hex += HEX_CHARS[(num >> (offset + 4)) & 0x0F] + HEX_CHARS[(num >> offset) & 0x0F];
}
return hex;
};
if(typeof(module) != 'undefined') {
if(!root.JS_SHA512_TEST && NODE_JS) {
sha512.sha512 = sha512;
sha512.sha384 = sha384;
sha512.sha512_256 = sha512_256;