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/* hmac-md5.h -- HMAC_MD5 functions */ #ifndef HMAC_MD5_H #define HMAC_MD5_H 1 #define HMAC_MD5_SIZE 16 /* intermediate MD5 context */ typedef struct HMAC_MD5_CTX_s { MD5_CTX ictx, octx; } HMAC_MD5_CTX; /* intermediate HMAC state * values stored in network byte order (Big Endian) */ typedef struct HMAC_MD5_STATE_s { UINT4 istate[4]; UINT4 ostate[4]; } HMAC_MD5_STATE; #ifdef __cplusplus extern "C" { #endif /* One step hmac computation * * digest may be same as text or key */ void _sasl_hmac_md5(const unsigned char *text, int text_len, const unsigned char *key, int key_len, unsigned char digest[HMAC_MD5_SIZE]); /* create context from key */ void _sasl_hmac_md5_init(HMAC_MD5_CTX *hmac, const unsigned char *key, int key_len); /* precalculate intermediate state from key */ void _sasl_hmac_md5_precalc(HMAC_MD5_STATE *hmac, const unsigned char *key, int key_len); /* initialize context from intermediate state */ void _sasl_hmac_md5_import(HMAC_MD5_CTX *hmac, HMAC_MD5_STATE *state); #define _sasl_hmac_md5_update(hmac, text, text_len) _sasl_MD5Update(&(hmac)->ictx, (text), (text_len)) /* finish hmac from intermediate result. Intermediate result is zeroed. */ void _sasl_hmac_md5_final(unsigned char digest[HMAC_MD5_SIZE], HMAC_MD5_CTX *hmac); #ifdef __cplusplus } #endif #endif /* HMAC_MD5_H */