vnfmarket/src/main/webapp/vnfmarket/node_modules/socket.io-client/lib/vendor/web-socket-js/flash-src/com/hurlant/crypto/hash/SHABase.as

   1 /**\r
   2  * SHABase\r
   3  * \r
   4  * An ActionScript 3 abstract class for the SHA family of hash functions\r
   5  * Copyright (c) 2007 Henri Torgemane\r
   6  * \r
   7  * See LICENSE.txt for full license information.\r
   8  */\r
   9 package com.hurlant.crypto.hash\r
  10 {\r
  11         import flash.utils.ByteArray;\r
  12         import flash.utils.Endian;\r
  13 \r
  14         public class SHABase implements IHash\r
  15         {\r
  16 \r
  17         public function SHABase() { }\r
  18 \r
  19                 public var pad_size:int = 40;\r
  20                 public function getInputSize():uint\r
  21                 {\r
  22                         return 64;\r
  23                 }\r
  24                 \r
  25                 public function getHashSize():uint\r
  26                 {\r
  27                         return 0;\r
  28                 }\r
  29                 \r
  30                 public function getPadSize():int \r
  31                 {\r
  32                         return pad_size;\r
  33                 }\r
  34                 \r
  35                 public function hash(src:ByteArray):ByteArray\r
  36                 {\r
  37                         var savedLength:uint = src.length;\r
  38                         var savedEndian:String = src.endian;\r
  39                         \r
  40                         src.endian = Endian.BIG_ENDIAN;\r
  41                         var len:uint = savedLength *8;\r
  42                         // pad to nearest int.\r
  43                         while (src.length%4!=0) {\r
  44                                 src[src.length]=0;\r
  45                         }\r
  46                         // convert ByteArray to an array of uint\r
  47                         src.position=0;\r
  48                         var a:Array = [];\r
  49                         for (var i:uint=0;i<src.length;i+=4) {\r
  50                                 a.push(src.readUnsignedInt());\r
  51                         }\r
  52                         var h:Array = core(a, len);\r
  53                         var out:ByteArray = new ByteArray;\r
  54                         var words:uint = getHashSize()/4;\r
  55                         for (i=0;i<words;i++) {\r
  56                                 out.writeUnsignedInt(h[i]);\r
  57                         }\r
  58                         // unpad, to leave the source untouched.\r
  59                         src.length = savedLength;\r
  60                         src.endian = savedEndian;\r
  61                         return out;\r
  62                 }\r
  63                 protected function core(x:Array, len:uint):Array {\r
  64                         return null;\r
  65                 }\r
  66                 \r
  67                 public function toString():String {\r
  68                         return "sha";\r
  69                 }\r
  70         }\r
  71 }\r