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Viewing changes to third_party/websockify/include/web-socket-js/src/flash-src/third-party/com/hurlant/crypto/symmetric/CBCMode.as

  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2014-01-19 14:12:40 UTC
  • mfrom: (4.1.2 sid)
  • Revision ID: package-import@ubuntu.com-20140119141240-nfiw0p8033oitpfz
Tags: 1.9.0~20140119~7dc8c2f-1
http://bugs.debian.org/733714
http://bugs.debian.org/735903
* New snapshot release (Closes: #733714)
* Provide sources for javascript and flash. Done in orig-tar.sh
  Available in third_party/websockify/include/web-socket-js/src/
  (Closes: #735903)

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third_party/websockify/include/web-socket-js/src/flash-src/third-party/com/hurlant/crypto/symmetric/CBCMode.as
 
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/**
 
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 * CBCMode
 
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 * 
 
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 * An ActionScript 3 implementation of the CBC confidentiality mode
 
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 * Copyright (c) 2007 Henri Torgemane
 
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 * 
 
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 * See LICENSE.txt for full license information.
 
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 */
 
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package com.hurlant.crypto.symmetric
 
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{
 
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        import flash.utils.ByteArray;
 
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        /**
 
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         * CBC confidentiality mode. why not.
 
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         */
 
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        public class CBCMode extends IVMode implements IMode
 
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        {
 
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                public function CBCMode(key:ISymmetricKey, padding:IPad = null) {
 
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                        super(key, padding);
 
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                }
 
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                public function encrypt(src:ByteArray):void {
 
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                        padding.pad(src);
 
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                        var vector:ByteArray = getIV4e();
 
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                        for (var i:uint=0;i<src.length;i+=blockSize) {
 
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                                for (var j:uint=0;j<blockSize;j++) {
 
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                                        src[i+j] ^= vector[j];
 
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                                }
 
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                                key.encrypt(src, i);
 
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                                vector.position=0;
 
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                                vector.writeBytes(src, i, blockSize);
 
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                        }
 
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                }
 
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                public function decrypt(src:ByteArray):void {
 
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                        var vector:ByteArray = getIV4d();
 
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                        var tmp:ByteArray = new ByteArray;
 
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                        for (var i:uint=0;i<src.length;i+=blockSize) {
 
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                                tmp.position=0;
 
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                                tmp.writeBytes(src, i, blockSize);
 
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                                key.decrypt(src, i);
 
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                                for (var j:uint=0;j<blockSize;j++) {
 
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                                        src[i+j] ^= vector[j];
 
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                                }
 
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                                vector.position=0;
 
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                                vector.writeBytes(tmp, 0, blockSize);
 
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                        }
 
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                        padding.unpad(src);
 
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                }
 
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                public function toString():String {
 
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                        return key.toString()+"-cbc";
 
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                }
 
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        }
 
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}