BlockCipher.h

00001 #ifndef BLOCK_CIPHER_H
00002 #define BLOCK_CIPHER_H
00003 
00004 #include "Cipher.h"
00005 
00006 enum BLOCK_CIPHER_MODE
00007 {
00008     ECB_MODE,
00009     CBC_MODE
00010 };
00011 
00012 class BlockCipher : public Cipher
00013 {
00014     public :
00015     
00016         BlockCipher(uint32_t bs, BLOCK_CIPHER_MODE m, uint8_t *iv = 0);
00017         virtual ~BlockCipher();
00018         
00019         virtual CIPHER_TYPE getType() const;        
00020         uint32_t getBlockSize() const;
00021 
00022         virtual void encrypt(uint8_t *out, uint8_t *in, uint32_t length);        
00023         virtual void decrypt(uint8_t *out, uint8_t *in, uint32_t length);        
00024 
00025     protected :
00026     
00027         virtual void encryptBlock(uint8_t *out, uint8_t *in) = 0;
00028         virtual void decryptBlock(uint8_t *out, uint8_t *in) = 0;
00029 
00030     private :
00031     
00032         uint32_t blockSize;
00033         BLOCK_CIPHER_MODE mode;
00034         uint8_t *IV;
00035 };
00036 
00037 #endif