55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
#ifndef __HMAC_H__
|
|
#define __HMAC_H__
|
|
|
|
#ifndef RSA32API
|
|
#define RSA32API __stdcall
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
// include "md5.h" before this
|
|
|
|
typedef struct {
|
|
MD5_CTX context_ipad;
|
|
MD5_CTX context_opad;
|
|
} HMACMD5_CTX;
|
|
|
|
// Initialize an HMAC context with a session key
|
|
// Afterword, context can be used to sign messages with the session key
|
|
//
|
|
void
|
|
RSA32API
|
|
HMACMD5Init(
|
|
HMACMD5_CTX * pCtx, // IN, OUT -- the context to initialize
|
|
unsigned char *pKey, // IN -- the session key
|
|
unsigned int cKey // IN -- session key length
|
|
);
|
|
|
|
// Update the signature of a message
|
|
// takes a fragment of a message, updates signature for that fragment
|
|
void
|
|
RSA32API
|
|
HMACMD5Update(
|
|
HMACMD5_CTX * pCtx, // IN, OUT -- context of signature to update
|
|
unsigned char *pMsg, // IN -- message fragment
|
|
unsigned int cMsg // IN -- message length
|
|
);
|
|
|
|
// Get the signature out of the context, reset for next message
|
|
//
|
|
void
|
|
RSA32API
|
|
HMACMD5Final(
|
|
HMACMD5_CTX * pCtx, // IN, OUT -- the context
|
|
unsigned char Hash[MD5DIGESTLEN] // OUT -- the signature
|
|
);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif // __HMAC_H__
|