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