src/include/common/hmac.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * hmac.h
   4  *        Generic headers for HMAC
   5  *
   6  * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * IDENTIFICATION
  10  *                src/include/common/hmac.h
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14
  15 #ifndef PG_HMAC_H
  16 #define PG_HMAC_H
  17
  18 #include "common/cryptohash.h"
  19
  20 /* opaque context, private to each HMAC implementation */
  21 typedef struct pg_hmac_ctx pg_hmac_ctx;
  22
  23 extern pg_hmac_ctx *pg_hmac_create(pg_cryptohash_type type);
  24 extern int      pg_hmac_init(pg_hmac_ctx *ctx, const uint8 *key, size_t len);
  25 extern int      pg_hmac_update(pg_hmac_ctx *ctx, const uint8 *data, size_t len);
  26 extern int      pg_hmac_final(pg_hmac_ctx *ctx, uint8 *dest, size_t len);
  27 extern void pg_hmac_free(pg_hmac_ctx *ctx);
  28 extern const char *pg_hmac_error(pg_hmac_ctx *ctx);
  29
  30 #endif                                                  /* PG_HMAC_H */