text: /* blake2.h
   *
   * Copyright (C) 2006-2021 wolfSSL Inc.
   *
   * This file is part of wolfSSL.
   *
   * wolfSSL is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * wolfSSL is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
   */
  
  /*!
      \file wolfssl/wolfcrypt/blake2.h
  */
  
  #ifndef WOLF_CRYPT_BLAKE2_H
  #define WOLF_CRYPT_BLAKE2_H
  
  #include <wolfssl/wolfcrypt/settings.h>
  
  #if defined(HAVE_BLAKE2) || defined(HAVE_BLAKE2S)
  
  #include <wolfssl/wolfcrypt/blake2-int.h>
  
  /* call old functions if using fips for the sake of hmac @wc_fips */
  #ifdef HAVE_FIPS
      /* Since hmac can call blake functions provide original calls */
      #define wc_InitBlake2b   InitBlake2b
      #define wc_Blake2bUpdate Blake2bUpdate
      #define wc_Blake2bFinal  Blake2bFinal
  #endif
  
  #ifdef __cplusplus
      extern "C" {
  #endif
  
  /* in bytes, variable digest size up to 512 bits (64 bytes) */
  enum {
  #ifdef HAVE_BLAKE2B
      BLAKE2B_ID  = WC_HASH_TYPE_BLAKE2B,
      BLAKE2B_256 = 32,  /* 256 bit type, SSL default */
  #endif
  #ifdef HAVE_BLAKE2S
      BLAKE2S_ID  = WC_HASH_TYPE_BLAKE2S,
      BLAKE2S_256 = 32   /* 256 bit type */
  #endif
  };
  
  
  #ifdef HAVE_BLAKE2B
  /* BLAKE2b digest */
  typedef struct Blake2b {
      blake2b_state S[1];         /* our state */
      word32        digestSz;     /* digest size used on init */
  } Blake2b;
  #endif
  
  #ifdef HAVE_BLAKE2S
  /* BLAKE2s digest */
  typedef struct Blake2s {
      blake2s_state S[1];         /* our state */
      word32        digestSz;     /* digest size used on init */
  } Blake2s;
  #endif
  
  
  #ifdef HAVE_BLAKE2B
  WOLFSSL_API int wc_InitBlake2b(Blake2b*, word32);
  WOLFSSL_API int wc_InitBlake2b_WithKey(Blake2b*, word32, const byte *, word32);
  WOLFSSL_API int wc_Blake2bUpdate(Blake2b*, const byte*, word32);
  WOLFSSL_API int wc_Blake2bFinal(Blake2b*, byte*, word32);
  #endif
  
  #ifdef HAVE_BLAKE2S
  WOLFSSL_API int wc_InitBlake2s(Blake2s*, word32);
  WOLFSSL_API int wc_InitBlake2s_WithKey(Blake2s*, word32, const byte *, word32);
  WOLFSSL_API int wc_Blake2sUpdate(Blake2s*, const byte*, word32);
  WOLFSSL_API int wc_Blake2sFinal(Blake2s*, byte*, word32);
  #endif
  
  
  #ifdef __cplusplus
      }
  #endif
  
  #endif  /* HAVE_BLAKE2 || HAVE_BLAKE2S */
  #endif  /* WOLF_CRYPT_BLAKE2_H */
  
  