1/*
2 * Copyright 2002-2020 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#ifndef OPENSSL_AES_H
11# define OPENSSL_AES_H
12# pragma once
13
14# include <openssl/macros.h>
15# ifndef OPENSSL_NO_DEPRECATED_3_0
16#  define HEADER_AES_H
17# endif
18
19# include <openssl/opensslconf.h>
20
21# include <stddef.h>
22# ifdef  __cplusplus
23extern "C" {
24# endif
25
26# define AES_BLOCK_SIZE 16
27
28# ifndef OPENSSL_NO_DEPRECATED_3_0
29
30#  define AES_ENCRYPT     1
31#  define AES_DECRYPT     0
32
33#  define AES_MAXNR 14
34
35
36/* This should be a hidden type, but EVP requires that the size be known */
37struct aes_key_st {
38#  ifdef AES_LONG
39    unsigned long rd_key[4 * (AES_MAXNR + 1)];
40#  else
41    unsigned int rd_key[4 * (AES_MAXNR + 1)];
42#  endif
43    int rounds;
44};
45typedef struct aes_key_st AES_KEY;
46
47# endif
48# ifndef OPENSSL_NO_DEPRECATED_3_0
49OSSL_DEPRECATEDIN_3_0 const char *AES_options(void);
50OSSL_DEPRECATEDIN_3_0
51int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
52                        AES_KEY *key);
53OSSL_DEPRECATEDIN_3_0
54int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
55                        AES_KEY *key);
56OSSL_DEPRECATEDIN_3_0
57void AES_encrypt(const unsigned char *in, unsigned char *out,
58                 const AES_KEY *key);
59OSSL_DEPRECATEDIN_3_0
60void AES_decrypt(const unsigned char *in, unsigned char *out,
61                 const AES_KEY *key);
62OSSL_DEPRECATEDIN_3_0
63void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
64                     const AES_KEY *key, const int enc);
65OSSL_DEPRECATEDIN_3_0
66void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
67                     size_t length, const AES_KEY *key,
68                     unsigned char *ivec, const int enc);
69OSSL_DEPRECATEDIN_3_0
70void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
71                        size_t length, const AES_KEY *key,
72                        unsigned char *ivec, int *num, const int enc);
73OSSL_DEPRECATEDIN_3_0
74void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
75                      size_t length, const AES_KEY *key,
76                      unsigned char *ivec, int *num, const int enc);
77OSSL_DEPRECATEDIN_3_0
78void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
79                      size_t length, const AES_KEY *key,
80                      unsigned char *ivec, int *num, const int enc);
81OSSL_DEPRECATEDIN_3_0
82void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
83                        size_t length, const AES_KEY *key,
84                        unsigned char *ivec, int *num);
85
86/* NB: the IV is _two_ blocks long */
87OSSL_DEPRECATEDIN_3_0
88void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
89                     size_t length, const AES_KEY *key,
90                     unsigned char *ivec, const int enc);
91/* NB: the IV is _four_ blocks long */
92OSSL_DEPRECATEDIN_3_0
93void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out,
94                        size_t length, const AES_KEY *key, const AES_KEY *key2,
95                        const unsigned char *ivec, const int enc);
96OSSL_DEPRECATEDIN_3_0
97int AES_wrap_key(AES_KEY *key, const unsigned char *iv,
98                 unsigned char *out, const unsigned char *in,
99                 unsigned int inlen);
100OSSL_DEPRECATEDIN_3_0
101int AES_unwrap_key(AES_KEY *key, const unsigned char *iv,
102                   unsigned char *out, const unsigned char *in,
103                   unsigned int inlen);
104# endif
105
106
107# ifdef  __cplusplus
108}
109# endif
110
111#endif
112