SHA2_64.h

00001 #ifndef SHA2_64_H
00002 #define SHA2_64_H
00003 
00004 #include <stdint.h>
00005 
00006 enum SHA2_64_TYPE
00007 {
00008     SHA_384,
00009     SHA_512
00010 };
00011 
00012 class SHA2_64
00013 {
00014     public :
00015 
00016         SHA2_64(SHA2_64_TYPE type);
00017         
00018         void update(uint8_t *data, uint32_t length);
00019         void finalize(uint8_t *hash);
00020         
00021         static void computeHash(SHA2_64_TYPE type, uint8_t *hash, uint8_t *data, uint32_t length);
00022 
00023     private :
00024     
00025             static void computeBlock(uint64_t *h02, 
00026                                  uint64_t *h12, 
00027                                  uint64_t *h22, 
00028                                  uint64_t *h32, 
00029                                  uint64_t *h42, 
00030                                  uint64_t *h52, 
00031                                  uint64_t *h62,
00032                                  uint64_t *h72,
00033                                  uint8_t *buffer);
00034                                  
00035         SHA2_64_TYPE type;
00036         uint64_t h0, h1, h2, h3, h4, h5, h6, h7;
00037         uint32_t totalBufferLength;
00038         uint8_t buffer[128];
00039         uint8_t bufferLength;        
00040 };
00041 
00042 #endif