www.pudn.com > ntcrypto.rar > hash.h

/* hash.h */ 
 
#ifdef CSP_USE_MD5 
#include "md5.h" 
#endif 
#ifdef CSP_USE_SHA1 
#include "sha.h" 
#endif 
 
/*********************************/ 
/* Definitions                   */ 
/*********************************/ 
 
#define		HASH_MAGIC	0xBADE 
 
/* State Flags */ 
#define		HASH_INIT		0x0001 
#define		HASH_DATA		0x0002 
#define		HASH_FINISH		0x0004 
 
#define     MAX_HASH_LEN    20 
 
#define     CRYPT_BLKLEN    8 
 
#define     HMAC_DEFAULT_STRING_LEN     64 
#define     HMAC_STARTED    1 
#define     HMAC_FINISHED   2 
 
 
 
/*********************************/ 
/* Structure Definitions         */ 
/*********************************/ 
 
typedef struct { 
	int				magic;				// Magic number 
    void            *pContext;          // associated context 
	int				state;				// State of hash object 
	ALG_ID			algId;				// Algorithm Id 
	DWORD			size;				// Size of hash 
    void            *pMAC;              // pointer to mac state 
    BYTE            hashval[MAX_HASH_LEN]; 
    BYTE            *pbData; 
    DWORD           cbData; 
    HCRYPTKEY       hKey; 
    ALG_ID          HMACAlgid; 
    DWORD           HMACState; 
    BYTE            *pbHMACInner; 
    DWORD           cbHMACInner; 
    BYTE            *pbHMACOuter; 
    DWORD           cbHMACOuter; 
	union { 
#ifdef CSP_USE_MD5 
		MD5_CTX	md5; 
#endif // CSP_USE_MD5 
#ifdef CSP_USE_SHA1 
		A_SHA_CTX   sha; 
#endif // CSP_USE_SHA1 
	} algData; 
} Hash_t; 
 
/*********************************/ 
/* Function Definitions          */ 
/*********************************/ 
 
#ifdef CSP_USE_MD5 
// 
// Function : TestMD5 
// 
// Description : This function hashes the passed in message with the MD5 hash 
//               algorithm and returns the resulting hash value. 
// 
BOOL TestMD5( 
             BYTE *pbMsg, 
             DWORD cbMsg, 
             BYTE *pbHash 
             ); 
#endif // CSP_USE_MD5 
 
#ifdef CSP_USE_SHA1 
// 
// Function : TestSHA1 
// 
// Description : This function hashes the passed in message with the SHA1 hash 
//               algorithm and returns the resulting hash value. 
// 
BOOL TestSHA1( 
              BYTE *pbMsg, 
              DWORD cbMsg, 
              BYTE *pbHash 
              ); 
#endif // CSP_USE_SHA1 
 
Hash_t *allocHash (); 
void freeHash (Hash_t *hash); 
 
DWORD feedHashData (Hash_t *hash, BYTE *data, DWORD len); 
DWORD finishHash (Hash_t *hash, BYTE *pbData, DWORD *len); 
DWORD getHashParams (Hash_t *hash, DWORD param, BYTE *pbData, DWORD *len); 
DWORD setHashParams (Hash_t *hash, DWORD param, BYTE *pbData); 
 
DWORD DuplicateHash( 
                    Hash_t *pHash, 
                    Hash_t *pNewHash 
                    );