www.pudn.com > truecrypt.zip > SHA1.H, change:2003-12-26,size:464b

typedef struct { 
    unsigned long state[5]; 
    unsigned long count[2]; 
    unsigned char buffer[64]; 
} SHA1_CTX; 
 
#define SHA_BLOCKSIZE   64 
#define SHA_DIGESTSIZE  20 
 
void SHA1TRANSFORM ( unsigned long state [5 ], unsigned char buffer [64 ]); 
void _cdecl SHA1Init ( SHA1_CTX *context ); 
void _cdecl SHA1Update ( SHA1_CTX *context , unsigned char *data , unsigned int len ); 
void _cdecl SHA1Final ( unsigned char digest [20 ], SHA1_CTX *context );