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| 1 | +/* |
| 2 | + * Copyright 2002-2016 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 | +#ifndef HEADER_AES_H |
| 11 | +# define HEADER_AES_H |
| 12 | + |
| 13 | +# include <openssl/opensslconf.h> |
| 14 | + |
| 15 | +# include <stddef.h> |
| 16 | +# ifdef __cplusplus |
| 17 | +extern "C" { |
| 18 | +# endif |
| 19 | + |
| 20 | +# define AES_ENCRYPT 1 |
| 21 | +# define AES_DECRYPT 0 |
| 22 | + |
| 23 | +/* |
| 24 | + * Because array size can't be a const in C, the following two are macros. |
| 25 | + * Both sizes are in bytes. |
| 26 | + */ |
| 27 | +# define AES_MAXNR 14 |
| 28 | +# define AES_BLOCK_SIZE 16 |
| 29 | + |
| 30 | +/* This should be a hidden type, but EVP requires that the size be known */ |
| 31 | +struct aes_key_st { |
| 32 | +# ifdef AES_LONG |
| 33 | + unsigned long rd_key[4 * (AES_MAXNR + 1)]; |
| 34 | +# else |
| 35 | + unsigned int rd_key[4 * (AES_MAXNR + 1)]; |
| 36 | +# endif |
| 37 | + int rounds; |
| 38 | +}; |
| 39 | +typedef struct aes_key_st AES_KEY; |
| 40 | + |
| 41 | +const char *AES_options(void); |
| 42 | + |
| 43 | +int AES_set_encrypt_key(const unsigned char *userKey, const int bits, |
| 44 | + AES_KEY *key); |
| 45 | +int AES_set_decrypt_key(const unsigned char *userKey, const int bits, |
| 46 | + AES_KEY *key); |
| 47 | + |
| 48 | +void AES_encrypt(const unsigned char *in, unsigned char *out, |
| 49 | + const AES_KEY *key); |
| 50 | +void AES_decrypt(const unsigned char *in, unsigned char *out, |
| 51 | + const AES_KEY *key); |
| 52 | + |
| 53 | +void AES_ecb_encrypt(const unsigned char *in, unsigned char *out, |
| 54 | + const AES_KEY *key, const int enc); |
| 55 | +void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, |
| 56 | + size_t length, const AES_KEY *key, |
| 57 | + unsigned char *ivec, const int enc); |
| 58 | +void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, |
| 59 | + size_t length, const AES_KEY *key, |
| 60 | + unsigned char *ivec, int *num, const int enc); |
| 61 | +void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, |
| 62 | + size_t length, const AES_KEY *key, |
| 63 | + unsigned char *ivec, int *num, const int enc); |
| 64 | +void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, |
| 65 | + size_t length, const AES_KEY *key, |
| 66 | + unsigned char *ivec, int *num, const int enc); |
| 67 | +void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, |
| 68 | + size_t length, const AES_KEY *key, |
| 69 | + unsigned char *ivec, int *num); |
| 70 | +/* NB: the IV is _two_ blocks long */ |
| 71 | +void AES_ige_encrypt(const unsigned char *in, unsigned char *out, |
| 72 | + size_t length, const AES_KEY *key, |
| 73 | + unsigned char *ivec, const int enc); |
| 74 | +/* NB: the IV is _four_ blocks long */ |
| 75 | +void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out, |
| 76 | + size_t length, const AES_KEY *key, |
| 77 | + const AES_KEY *key2, const unsigned char *ivec, |
| 78 | + const int enc); |
| 79 | + |
| 80 | +int AES_wrap_key(AES_KEY *key, const unsigned char *iv, |
| 81 | + unsigned char *out, |
| 82 | + const unsigned char *in, unsigned int inlen); |
| 83 | +int AES_unwrap_key(AES_KEY *key, const unsigned char *iv, |
| 84 | + unsigned char *out, |
| 85 | + const unsigned char *in, unsigned int inlen); |
| 86 | + |
| 87 | + |
| 88 | +# ifdef __cplusplus |
| 89 | +} |
| 90 | +# endif |
| 91 | + |
| 92 | +#endif |
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