2 * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>.
3 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
5 * Licensed under the OpenSSL licenses, (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 * https://www.openssl.org/source/license.html
9 * or in the file LICENSE in the source distribution.
13 * Derived from the BLAKE2 reference implementation written by Samuel Neves.
14 * More information about the BLAKE2 hash function and its implementations
15 * can be found at https://blake2.net.
21 #define BLAKE2S_BLOCKBYTES 64
22 #define BLAKE2S_OUTBYTES 32
23 #define BLAKE2S_KEYBYTES 32
24 #define BLAKE2S_SALTBYTES 8
25 #define BLAKE2S_PERSONALBYTES 8
27 #define BLAKE2B_BLOCKBYTES 128
28 #define BLAKE2B_OUTBYTES 64
29 #define BLAKE2B_KEYBYTES 64
30 #define BLAKE2B_SALTBYTES 16
31 #define BLAKE2B_PERSONALBYTES 16
33 struct blake2s_param_st {
34 uint8_t digest_length; /* 1 */
35 uint8_t key_length; /* 2 */
36 uint8_t fanout; /* 3 */
37 uint8_t depth; /* 4 */
38 uint8_t leaf_length[4];/* 8 */
39 uint8_t node_offset[6];/* 14 */
40 uint8_t node_depth; /* 15 */
41 uint8_t inner_length; /* 16 */
42 uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */
43 uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */
46 typedef struct blake2s_param_st BLAKE2S_PARAM;
48 struct blake2s_ctx_st {
52 uint8_t buf[BLAKE2S_BLOCKBYTES];
56 struct blake2b_param_st {
57 uint8_t digest_length; /* 1 */
58 uint8_t key_length; /* 2 */
59 uint8_t fanout; /* 3 */
60 uint8_t depth; /* 4 */
61 uint8_t leaf_length[4];/* 8 */
62 uint8_t node_offset[8];/* 16 */
63 uint8_t node_depth; /* 17 */
64 uint8_t inner_length; /* 18 */
65 uint8_t reserved[14]; /* 32 */
66 uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
67 uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
70 typedef struct blake2b_param_st BLAKE2B_PARAM;
72 struct blake2b_ctx_st {
76 uint8_t buf[BLAKE2B_BLOCKBYTES];
80 #define BLAKE2B_DIGEST_LENGTH 64
81 #define BLAKE2S_DIGEST_LENGTH 32
83 typedef struct blake2s_ctx_st BLAKE2S_CTX;
84 typedef struct blake2b_ctx_st BLAKE2B_CTX;
86 int BLAKE2b_Init(BLAKE2B_CTX *c);
87 int BLAKE2b_Update(BLAKE2B_CTX *c, const void *data, size_t datalen);
88 int BLAKE2b_Final(unsigned char *md, BLAKE2B_CTX *c);
90 int BLAKE2s_Init(BLAKE2S_CTX *c);
91 int BLAKE2s_Update(BLAKE2S_CTX *c, const void *data, size_t datalen);
92 int BLAKE2s_Final(unsigned char *md, BLAKE2S_CTX *c);