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MyIOTest / myiotestb / static / web-socket-js / flash-src / third-party / com / hurlant / crypto / symmetric / ISymmetricKey.as

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/**
 * ISymmetricKey
 * 
 * An interface for symmetric encryption keys to implement.
 * Copyright (c) 2007 Henri Torgemane
 * 
 * See LICENSE.txt for full license information.
 */
package com.hurlant.crypto.symmetric
{
	import flash.utils.ByteArray;
	
	public interface ISymmetricKey
	{
		/**
		 * Returns the block size used by this particular encryption algorithm
		 */
		function getBlockSize():uint;
		/**
		 * Encrypt one block of data in "block", starting at "index", of length "getBlockSize()"
		 */
		function encrypt(block:ByteArray, index:uint=0):void;
		/**
		 * Decrypt one block of data in "block", starting at "index", of length "getBlockSize()"
		 */
		function decrypt(block:ByteArray, index:uint=0):void;
		/**
		 * Attempts to destroy sensitive information from memory, such as encryption keys.
		 * Note: This is not guaranteed to work given the Flash sandbox model.
		 */
		function dispose():void;
		
		function toString():String;
	}
}