1/*
2 * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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/* TODO(3.0) Move this header into provider when dependencies are removed */
11#ifndef OSSL_PROVIDERS_DEFAULT_INCLUDE_INTERNAL_BLAKE2_H
12# define OSSL_PROVIDERS_DEFAULT_INCLUDE_INTERNAL_BLAKE2_H
13
14# include <openssl/opensslconf.h>
15
16# include <openssl/e_os2.h>
17# include <stddef.h>
18
19# define BLAKE2S_BLOCKBYTES 64
20# define BLAKE2S_OUTBYTES 32
21# define BLAKE2S_KEYBYTES 32
22# define BLAKE2S_SALTBYTES 8
23# define BLAKE2S_PERSONALBYTES 8
24
25# define BLAKE2B_BLOCKBYTES 128
26# define BLAKE2B_OUTBYTES 64
27# define BLAKE2B_KEYBYTES 64
28# define BLAKE2B_SALTBYTES 16
29# define BLAKE2B_PERSONALBYTES 16
30
31struct blake2s_param_st {
32 uint8_t digest_length; /* 1 */
33 uint8_t key_length; /* 2 */
34 uint8_t fanout; /* 3 */
35 uint8_t depth; /* 4 */
36 uint8_t leaf_length[4];/* 8 */
37 uint8_t node_offset[6];/* 14 */
38 uint8_t node_depth; /* 15 */
39 uint8_t inner_length; /* 16 */
40 uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */
41 uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */
42};
43
44typedef struct blake2s_param_st BLAKE2S_PARAM;
45
46struct blake2s_ctx_st {
47 uint32_t h[8];
48 uint32_t t[2];
49 uint32_t f[2];
50 uint8_t buf[BLAKE2S_BLOCKBYTES];
51 size_t buflen;
52 size_t outlen;
53};
54
55struct blake2b_param_st {
56 uint8_t digest_length; /* 1 */
57 uint8_t key_length; /* 2 */
58 uint8_t fanout; /* 3 */
59 uint8_t depth; /* 4 */
60 uint8_t leaf_length[4];/* 8 */
61 uint8_t node_offset[8];/* 16 */
62 uint8_t node_depth; /* 17 */
63 uint8_t inner_length; /* 18 */
64 uint8_t reserved[14]; /* 32 */
65 uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
66 uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
67};
68
69typedef struct blake2b_param_st BLAKE2B_PARAM;
70
71struct blake2b_ctx_st {
72 uint64_t h[8];
73 uint64_t t[2];
74 uint64_t f[2];
75 uint8_t buf[BLAKE2B_BLOCKBYTES];
76 size_t buflen;
77 size_t outlen;
78};
79
80#define BLAKE2B_DIGEST_LENGTH 64
81#define BLAKE2S_DIGEST_LENGTH 32
82
83typedef struct blake2s_ctx_st BLAKE2S_CTX;
84typedef struct blake2b_ctx_st BLAKE2B_CTX;
85
86int blake2s256_init(void *ctx);
87int blake2b512_init(void *ctx);
88
89int blake2b_init(BLAKE2B_CTX *c, const BLAKE2B_PARAM *P);
90int blake2b_init_key(BLAKE2B_CTX *c, const BLAKE2B_PARAM *P, const void *key);
91int blake2b_update(BLAKE2B_CTX *c, const void *data, size_t datalen);
92int blake2b_final(unsigned char *md, BLAKE2B_CTX *c);
93
94/*
95 * These setters are internal and do not check the validity of their parameters.
96 * See blake2b_mac_ctrl for validation logic.
97 */
98
99void blake2b_param_init(BLAKE2B_PARAM *P);
100void blake2b_param_set_digest_length(BLAKE2B_PARAM *P, uint8_t outlen);
101void blake2b_param_set_key_length(BLAKE2B_PARAM *P, uint8_t keylen);
102void blake2b_param_set_personal(BLAKE2B_PARAM *P, const uint8_t *personal, size_t length);
103void blake2b_param_set_salt(BLAKE2B_PARAM *P, const uint8_t *salt, size_t length);
104
105int blake2s_init(BLAKE2S_CTX *c, const BLAKE2S_PARAM *P);
106int blake2s_init_key(BLAKE2S_CTX *c, const BLAKE2S_PARAM *P, const void *key);
107int blake2s_update(BLAKE2S_CTX *c, const void *data, size_t datalen);
108int blake2s_final(unsigned char *md, BLAKE2S_CTX *c);
109
110void blake2s_param_init(BLAKE2S_PARAM *P);
111void blake2s_param_set_digest_length(BLAKE2S_PARAM *P, uint8_t outlen);
112void blake2s_param_set_key_length(BLAKE2S_PARAM *P, uint8_t keylen);
113void blake2s_param_set_personal(BLAKE2S_PARAM *P, const uint8_t *personal, size_t length);
114void blake2s_param_set_salt(BLAKE2S_PARAM *P, const uint8_t *salt, size_t length);
115
116#endif /* OSSL_PROVIDERS_DEFAULT_INCLUDE_INTERNAL_BLAKE2_H */
117