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/*
* AES Block cipher
* (c) 2005-2010 Axiomatic Systems, LLC
*/
#ifndef _AP4_AES_BLOCK_CIPHER_H_
#define _AP4_AES_BLOCK_CIPHER_H_
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "Ap4Types.h"
#include "Ap4Config.h"
#include "Ap4Protection.h"
/*----------------------------------------------------------------------
| class references
+---------------------------------------------------------------------*/
struct aes_ctx;
/*----------------------------------------------------------------------
| AES constants
+---------------------------------------------------------------------*/
#define AP4_AES_BLOCK_SIZE 16
#define AP4_AES_KEY_LENGTH 16
/*----------------------------------------------------------------------
| AP4_AesBlockCipher class
+---------------------------------------------------------------------*/
class AP4_AesBlockCipher : public AP4_BlockCipher
{
public:
// constructor and destructor
static AP4_Result Create(const AP4_UI08* key,
CipherDirection direction,
CipherMode mode,
const void* mode_params,
AP4_AesBlockCipher*& cipher);
virtual ~AP4_AesBlockCipher();
virtual CipherDirection GetDirection() { return m_Direction; }
protected:
// constructor
AP4_AesBlockCipher(CipherDirection direction,
CipherMode mode,
aes_ctx* context) :
m_Direction(direction),
m_Mode(mode),
m_Context(context) {}
// members
CipherDirection m_Direction;
CipherMode m_Mode;
aes_ctx* m_Context;
};
#endif // _AP4_AES_BLOCK_CIPHER_H_
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