UnknownObject/js-sha3
1
0
Fork 0
mirror of https://github.com/emn178/js-sha3.git synced 2026-08-13 03:51:54 +08:00
Code Issues Packages Projects Releases Wiki Activity

* Implement NIST's May 2014 SHA-3 version.

Browse Source 
* Rename original methods to keccak.
This commit is contained in:
Chen Yi-Cyuan
2015-04-04 22:04:00 +08:00
parent e686ac6177
commit 1fa1812d86
13 changed files with 380 additions and 92 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/sha3.js
+36 -10
View File
@@ -1,5 +1,5 @@
/*
* js-sha3 v0.1.2
* js-sha3 v0.2.0
* https://github.com/emn178/js-sha3
*
* Copyright 2015, emn178@gmail.com
@@ -19,7 +19,8 @@
}
var CHROME = (root.JS_SHA3_TEST || !NODE_JS) && navigator.userAgent.indexOf('Chrome') != -1;
var HEX_CHARS = '0123456789abcdef'.split('');
var EXTRA = [1, 256, 65536, 16777216];
var KECCAK_PADDING = [1, 256, 65536, 16777216];
var PADDING = [6, 1536, 393216, 100663296];
var SHIFT = [0, 8, 16, 24];
var RC = [1, 0, 32898, 0, 32906, 2147483648, 2147516416, 2147483648, 32907, 0, 2147483649,
0, 2147516545, 2147483648, 32777, 2147483648, 138, 0, 136, 0, 2147516425, 0,
@@ -29,21 +30,38 @@
var blocks = [], s = [];
var keccak_224 = function(message) {
return keccak(message, 224, KECCAK_PADDING);
};
var keccak_256 = function(message) {
return keccak(message, 256, KECCAK_PADDING);
};
var keccak_384 = function(message) {
return keccak(message, 384, KECCAK_PADDING);
};
var sha3_224 = function(message) {
return sha3(message, 224);
return keccak(message, 224, PADDING);
};
var sha3_256 = function(message) {
return sha3(message, 256);
return keccak(message, 256, PADDING);
};
var sha3_384 = function(message) {
return sha3(message, 384);
return keccak(message, 384, PADDING);
};
var sha3 = function(message, bits) {
var sha3_512 = function(message) {
return keccak(message, 512, PADDING);
};
var keccak = function(message, bits, padding) {
if(bits === undefined) {
bits = 512;
padding = KECCAK_PADDING;
}
var block, code, end = false, index = 0, start = 0, length = message.length,
@@ -85,7 +103,7 @@
}
start = i - byteCount;
if(index == length) {
blocks[i >> 2] |= EXTRA[i & 3];
blocks[i >> 2] |= padding[i & 3];
++index;
}
block = blocks[blockCount];
@@ -381,15 +399,23 @@
if(!root.JS_SHA3_TEST && NODE_JS) {
module.exports = {
sha3_512: sha3,
sha3_512: sha3_512,
sha3_384: sha3_384,
sha3_256: sha3_256,
sha3_224: sha3_224
sha3_224: sha3_224,
keccak_512: keccak,
keccak_384: keccak_384,
keccak_256: keccak_256,
keccak_224: keccak_224
};
} else if(root) {
root.sha3_512 = sha3;
root.sha3_512 = sha3_512;
root.sha3_384 = sha3_384;
root.sha3_256 = sha3_256;
root.sha3_224 = sha3_224;
root.keccak_512 = keccak;
root.keccak_384 = keccak_384;
root.keccak_256 = keccak_256;
root.keccak_224 = keccak_224;
}
}(this));