1 /*
2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 /*
11 * Derived from the BLAKE2 reference implementation written by Samuel Neves.
12 * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>
13 * More information about the BLAKE2 hash function and its implementations
14 * can be found at https://blake2.net.
15 */
16
17 #include "internal/cryptlib.h"
18
19 #ifndef OPENSSL_NO_BLAKE2
20
21 # include <openssl/evp.h>
22 # include <openssl/objects.h>
23 # include "blake2_local.h"
24 # include "crypto/evp.h"
25
init(EVP_MD_CTX * ctx)26 static int init(EVP_MD_CTX *ctx)
27 {
28 return BLAKE2b_Init(EVP_MD_CTX_md_data(ctx));
29 }
30
update(EVP_MD_CTX * ctx,const void * data,size_t count)31 static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
32 {
33 return BLAKE2b_Update(EVP_MD_CTX_md_data(ctx), data, count);
34 }
35
final(EVP_MD_CTX * ctx,unsigned char * md)36 static int final(EVP_MD_CTX *ctx, unsigned char *md)
37 {
38 return BLAKE2b_Final(md, EVP_MD_CTX_md_data(ctx));
39 }
40
41 static const EVP_MD blake2b_md = {
42 NID_blake2b512,
43 0,
44 BLAKE2B_DIGEST_LENGTH,
45 0,
46 init,
47 update,
48 final,
49 NULL,
50 NULL,
51 BLAKE2B_BLOCKBYTES,
52 sizeof(EVP_MD *) + sizeof(BLAKE2B_CTX),
53 };
54
EVP_blake2b512(void)55 const EVP_MD *EVP_blake2b512(void)
56 {
57 return &blake2b_md;
58 }
59 #endif
60