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[redakcja.git] / platforma / static / filebrowser / uploadify / com / adobe / crypto / .svn / text-base / HMAC.as.svn-base

diff --git a/platforma/static/filebrowser/uploadify/com/adobe/crypto/.svn/text-base/HMAC.as.svn-base b/platforma/static/filebrowser/uploadify/com/adobe/crypto/.svn/text-base/HMAC.as.svn-base
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+/*\r
+  Copyright (c) 2008, Adobe Systems Incorporated\r
+  All rights reserved.\r
+\r
+  Redistribution and use in source and binary forms, with or without \r
+  modification, are permitted provided that the following conditions are\r
+  met:\r
+\r
+  * Redistributions of source code must retain the above copyright notice, \r
+    this list of conditions and the following disclaimer.\r
+  \r
+  * Redistributions in binary form must reproduce the above copyright\r
+    notice, this list of conditions and the following disclaimer in the \r
+    documentation and/or other materials provided with the distribution.\r
+  \r
+  * Neither the name of Adobe Systems Incorporated nor the names of its \r
+    contributors may be used to endorse or promote products derived from \r
+    this software without specific prior written permission.\r
+\r
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS\r
+  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,\r
+  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r
+  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR \r
+  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,\r
+  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,\r
+  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\r
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF\r
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING\r
+  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+*/\r
+\r
+package com.adobe.crypto {\r
+       import flash.utils.ByteArray;\r
+       import flash.utils.Endian;\r
+       import flash.utils.describeType;\r
+       /**\r
+        * Keyed-Hashing for Message Authentication\r
+        * Implementation based on algorithm description at \r
+        * http://www.faqs.org/rfcs/rfc2104.html\r
+        */\r
+       public class HMAC \r
+       {\r
+               /**\r
+                * Performs the HMAC hash algorithm using byte arrays.\r
+                *\r
+                * @param secret The secret key\r
+                * @param message The message to hash\r
+                * @param algorithm Hash object to use\r
+                * @return A string containing the hash value of message\r
+                * @langversion ActionScript 3.0\r
+                * @playerversion Flash 8.5\r
+                * @tiptext\r
+                */\r
+               public static function hash( secret:String, message:String, algorithm:Object = null ):String\r
+               {\r
+                       var text:ByteArray = new ByteArray();\r
+                       var k_secret:ByteArray = new ByteArray();\r
+                       \r
+                       text.writeUTFBytes(message);\r
+                       k_secret.writeUTFBytes(secret);\r
+                       \r
+                       return hashBytes(k_secret, text, algorithm);\r
+               }\r
+               \r
+               /**\r
+                * Performs the HMAC hash algorithm using string.\r
+                *\r
+                * @param secret The secret key\r
+                * @param message The message to hash\r
+                * @param algorithm Hash object to use\r
+                * @return A string containing the hash value of message\r
+                * @langversion ActionScript 3.0\r
+                * @playerversion Flash 8.5\r
+                * @tiptext\r
+                */\r
+               public static function hashBytes( secret:ByteArray, message:ByteArray, algorithm:Object = null ):String\r
+               {\r
+                       var ipad:ByteArray = new ByteArray();\r
+                       var opad:ByteArray = new ByteArray();\r
+                       var endian:String = Endian.BIG_ENDIAN;\r
+                       \r
+                       if(algorithm == null){\r
+                               algorithm = MD5;\r
+                       }\r
+                       \r
+                       if ( describeType(algorithm).@name.toString() == "com.adobe.crypto::MD5" ) {\r
+                               endian = Endian.LITTLE_ENDIAN;\r
+                       }\r
+                       \r
+                       if ( secret.length > 64 ) {\r
+                               algorithm.hashBytes(secret);\r
+                               secret = new ByteArray();\r
+                               secret.endian = endian;\r
+                               \r
+                               while ( algorithm.digest.bytesAvailable != 0 ) {\r
+                                       secret.writeInt(algorithm.digest.readInt());\r
+                               }\r
+                       }\r
+\r
+                       secret.length = 64\r
+                       secret.position = 0;\r
+                       for ( var x:int = 0; x < 64; x++ ) {\r
+                               var byte:int = secret.readByte();\r
+                               ipad.writeByte(0x36 ^ byte);\r
+                               opad.writeByte(0x5c ^ byte);\r
+                       }\r
+                       \r
+                       ipad.writeBytes(message);\r
+                       algorithm.hashBytes(ipad);\r
+                       var tmp:ByteArray = new ByteArray();\r
+                       tmp.endian = endian;    \r
+                       \r
+                       while ( algorithm.digest.bytesAvailable != 0 ) {\r
+                               tmp.writeInt(algorithm.digest.readInt());\r
+                       }\r
+                       tmp.position = 0;\r
+                       \r
+                       while ( tmp.bytesAvailable != 0 ) {\r
+                               opad.writeByte(tmp.readUnsignedByte());\r
+                       }\r
+                       return algorithm.hashBytes( opad );\r
+               }\r
+               \r
+       }\r
+       \r
+}\r