UnknownObject/js-md5
1
0
Fork 0
mirror of https://github.com/emn178/js-md5.git synced 2026-08-12 20:31:43 +08:00
Code Issues Packages Projects Releases Wiki Activity

* Fixed bug when special length.

Browse Source 
* Improve performance for node.js.
This commit is contained in:
Chen Yi-Cyuan
2015-02-01 14:29:18 +08:00
parent 5cf8fc9215
commit f5eb89ccb2
6 changed files with 48 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/md5.js
+23 -19
View File
@@ -1,5 +1,5 @@
/*
* js-md5 v0.2.1
* js-md5 v0.2.2
* https://github.com/emn178/js-md5
*
* Copyright 2014-2015, emn178@gmail.com
@@ -23,26 +23,16 @@
var EXTRA = [128, 32768, 8388608, -2147483648];
var SHIFT = [0, 8, 16, 24];
var blocks = [], buffer8, nodeMd5;
var blocks = [], buffer8;
if(ARRAY_BUFFER) {
var buffer = new ArrayBuffer(68);
buffer8 = new Uint8Array(buffer);
blocks = new Uint32Array(buffer);
}
if(!root.JS_MD5_TEST && NODE_JS) {
var crypto = require('crypto');
nodeMd5 = function(message) {
return crypto.createHash('md5').update(message, 'utf8').digest('hex');
};
}
var md5 = function(message) {
var h0, h1, h2, h3, a, b, c, d, bc, da, code,
var h0, h1, h2, h3, a, b, c, d, bc, da, code, first = true, end = false,
index = 0, i, start = 0, bytes = 0, length = message.length;
if(nodeMd5 && length > 22) {
return nodeMd5(message);
}
blocks[16] = 0;
do {
blocks[0] = blocks[16];
@@ -95,10 +85,14 @@
start = i - 64;
if(index == length) {
blocks[i >> 2] |= EXTRA[i & 3];
blocks[14] = bytes << 3;
++index;
}
if(h0 === undefined) {
if(index > length && i < 56) {
blocks[14] = bytes << 3;
end = true;
}
if(first) {
a = blocks[0] - 680876937;
a = (a << 7 | a >>> 25) - 271733879 << 0;
d = (-1732584194 ^ a & 2004318071) + blocks[1] - 117830708;
@@ -251,18 +245,19 @@
b += (d ^ (c | ~a)) + blocks[9] - 343485551;
b = (b << 21 | b >>> 11) + c << 0;
if(h0 === undefined) {
if(first) {
h0 = a + 1732584193 << 0;
h1 = b - 271733879 << 0;
h2 = c - 1732584194 << 0;
h3 = d + 271733878 << 0;
first = false;
} else {
h0 = h0 + a << 0;
h1 = h1 + b << 0;
h2 = h2 + c << 0;
h3 = h3 + d << 0;
}
} while(index < length);
} while(!end);
if(FIREFOX) {
var hex = HEX_CHARS[(h0 >> 4) & 0x0F] + HEX_CHARS[h0 & 0x0F];
@@ -303,7 +298,16 @@
};
if(!root.JS_MD5_TEST && NODE_JS) {
module.exports = md5;
var crypto = require('crypto');
module.exports = function(message) {
if(message.length <= 80) {
return md5(message);
} else if(message.length <= 183 && !/[^\x00-\x7F]/.test(message)) {
return md5(message);
}
return crypto.createHash('md5').update(message, 'utf8').digest('hex');
};
} else if(root) {
root.md5 = md5;
}