Ap4AesBlockCipher.h
Go to the documentation of this file.00001 /* 00002 * AES Block cipher 00003 * (c) 2005-2008 Axiomatic Systems, LLC 00004 * Portions (c) 2001, Dr Brian Gladman (see below) 00005 */ 00006 00007 /* 00008 ------------------------------------------------------------------------- 00009 Copyright (c) 2001, Dr Brian Gladman <[email protected]>, Worcester, UK. 00010 All rights reserved. 00011 00012 LICENSE TERMS 00013 00014 The free distribution and use of this software in both source and binary 00015 form is allowed (with or without changes) provided that: 00016 00017 1. distributions of this source code include the above copyright 00018 notice, this list of conditions and the following disclaimer; 00019 00020 2. distributions in binary form include the above copyright 00021 notice, this list of conditions and the following disclaimer 00022 in the documentation and/or other associated materials; 00023 00024 3. the copyright holder's name is not used to endorse products 00025 built using this software without specific written permission. 00026 00027 DISCLAIMER 00028 00029 This software is provided 'as is' with no explicit or implied warranties 00030 in respect of its properties, including, but not limited to, correctness 00031 and fitness for purpose. 00032 ------------------------------------------------------------------------- 00033 Issue Date: 29/07/2002 00034 */ 00035 00036 #ifndef _AP4_AES_BLOCK_CIPHER_H_ 00037 #define _AP4_AES_BLOCK_CIPHER_H_ 00038 00039 /*---------------------------------------------------------------------- 00040 | includes 00041 +---------------------------------------------------------------------*/ 00042 #include "Ap4Types.h" 00043 #include "Ap4Config.h" 00044 #include "Ap4Protection.h" 00045 00046 /*---------------------------------------------------------------------- 00047 | class references 00048 +---------------------------------------------------------------------*/ 00049 struct aes_ctx; 00050 00051 /*---------------------------------------------------------------------- 00052 | AES constants 00053 +---------------------------------------------------------------------*/ 00054 #define AP4_AES_BLOCK_SIZE 16 00055 #define AP4_AES_KEY_LENGTH 16 00056 00057 /*---------------------------------------------------------------------- 00058 | AP4_AesBlockCipher class 00059 +---------------------------------------------------------------------*/ 00060 class AP4_AesBlockCipher : public AP4_BlockCipher 00061 { 00062 public: 00063 // constructor and destructor 00064 AP4_AesBlockCipher(const AP4_UI08* key, 00065 AP4_BlockCipher::CipherDirection direction); 00066 ~AP4_AesBlockCipher(); 00067 00068 // AP4_AesBlockCipher methods 00069 virtual AP4_Result ProcessBlock(const AP4_UI08* input, 00070 AP4_UI08* output); 00071 00072 private: 00073 // members 00074 CipherDirection m_Direction; 00075 aes_ctx* m_Context; 00076 }; 00077 00078 #endif // _AP4_AES_BLOCK_CIPHER_H_
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