crypto/evp/m_blake2s.c

   1 /*
   2  * BLAKE2 reference source code package - reference C implementations
   3  *
   4  * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>.
   5  * You may use this under the terms of the CC0, the OpenSSL Licence, or the
   6  * Apache Public License 2.0, at your option.  The terms of these licenses can
   7  * be found at:
   8  *
   9  * - OpenSSL license   : https://www.openssl.org/source/license.html
  10  * - Apache 2.0        : http://www.apache.org/licenses/LICENSE-2.0
  11  * - CC0 1.0 Universal : http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * More information about the BLAKE2 hash function can be found at
  14  * https://blake2.net.
  15  */
  16
  17 /* crypto/evp/m_blake2s.c */
  18
  19 #include <stdio.h>
  20 #include "internal/cryptlib.h"
  21
  22 #ifndef OPENSSL_NO_BLAKE2
  23
  24 # include <openssl/evp.h>
  25 # include <openssl/objects.h>
  26 # include "internal/blake2_locl.h"
  27 # include "internal/evp_int.h"
  28
  29 static int init(EVP_MD_CTX *ctx)
  30 {
  31     return BLAKE2s_Init(EVP_MD_CTX_md_data(ctx));
  32 }
  33
  34 static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
  35 {
  36     return BLAKE2s_Update(EVP_MD_CTX_md_data(ctx), data, count);
  37 }
  38
  39 static int final(EVP_MD_CTX *ctx, unsigned char *md)
  40 {
  41     return BLAKE2s_Final(md, EVP_MD_CTX_md_data(ctx));
  42 }
  43
  44 static const EVP_MD blake2s_md = {
  45     NID_blake2s,
  46     0,
  47     BLAKE2S_DIGEST_LENGTH,
  48     0,
  49     init,
  50     update,
  51     final,
  52     NULL,
  53     NULL,
  54     0,
  55     sizeof(EVP_MD *) + sizeof(BLAKE2S_CTX),
  56 };
  57
  58 const EVP_MD *EVP_blake2s(void)
  59 {
  60     return (&blake2s_md);
  61 }
  62 #endif