src/include/gpxe/hmac.h

   1 #ifndef _GPXE_HMAC_H
   2 #define _GPXE_HMAC_H
   3
   4 /** @file
   5  *
   6  * Keyed-Hashing for Message Authentication
   7  */
   8
   9 #include <gpxe/crypto.h>
  10
  11 /**
  12  * Update HMAC
  13  *
  14  * @v digest            Digest algorithm to use
  15  * @v digest_ctx        Digest context
  16  * @v data              Data
  17  * @v len               Length of data
  18  */
  19 static inline void hmac_update ( struct digest_algorithm *digest,
  20                                  void *digest_ctx, const void *data,
  21                                  size_t len ) {
  22         digest_update ( digest, digest_ctx, data, len );
  23 }
  24
  25 extern void hmac_init ( struct digest_algorithm *digest, void *digest_ctx,
  26                         void *key, size_t *key_len );
  27 extern void hmac_final ( struct digest_algorithm *digest, void *digest_ctx,
  28                          void *key, size_t *key_len, void *hmac );
  29
  30 #endif /* _GPXE_HMAC_H */