[331] | 1 | /*
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| 2 | * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #ifndef HEADER_AES_H
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| 11 | # define HEADER_AES_H
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| 12 |
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| 13 | # include <openssl/opensslconf.h>
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| 14 |
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| 15 | # include <stddef.h>
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| 16 | # ifdef __cplusplus
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| 17 | extern "C" {
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| 18 | # endif
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| 19 |
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| 20 | # define AES_ENCRYPT 1
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| 21 | # define AES_DECRYPT 0
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| 22 |
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| 23 | /*
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| 24 | * Because array size can't be a const in C, the following two are macros.
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| 25 | * Both sizes are in bytes.
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| 26 | */
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| 27 | # define AES_MAXNR 14
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| 28 | # define AES_BLOCK_SIZE 16
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| 29 |
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| 30 | /* This should be a hidden type, but EVP requires that the size be known */
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| 31 | struct aes_key_st {
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| 32 | # ifdef AES_LONG
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| 33 | unsigned long rd_key[4 * (AES_MAXNR + 1)];
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| 34 | # else
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| 35 | unsigned int rd_key[4 * (AES_MAXNR + 1)];
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| 36 | # endif
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| 37 | int rounds;
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| 38 | };
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| 39 | typedef struct aes_key_st AES_KEY;
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| 40 |
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| 41 | const char *AES_options(void);
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| 42 |
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| 43 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
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| 44 | AES_KEY *key);
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| 45 | int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
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| 46 | AES_KEY *key);
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| 47 |
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| 48 | void AES_encrypt(const unsigned char *in, unsigned char *out,
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| 49 | const AES_KEY *key);
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| 50 | void AES_decrypt(const unsigned char *in, unsigned char *out,
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| 51 | const AES_KEY *key);
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| 52 |
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| 53 | void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
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| 54 | const AES_KEY *key, const int enc);
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| 55 | void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
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| 56 | size_t length, const AES_KEY *key,
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| 57 | unsigned char *ivec, const int enc);
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| 58 | void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
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| 59 | size_t length, const AES_KEY *key,
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| 60 | unsigned char *ivec, int *num, const int enc);
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| 61 | void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
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| 62 | size_t length, const AES_KEY *key,
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| 63 | unsigned char *ivec, int *num, const int enc);
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| 64 | void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
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| 65 | size_t length, const AES_KEY *key,
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| 66 | unsigned char *ivec, int *num, const int enc);
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| 67 | void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
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| 68 | size_t length, const AES_KEY *key,
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| 69 | unsigned char *ivec, int *num);
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| 70 | /* NB: the IV is _two_ blocks long */
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| 71 | void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
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| 72 | size_t length, const AES_KEY *key,
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| 73 | unsigned char *ivec, const int enc);
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| 74 | /* NB: the IV is _four_ blocks long */
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| 75 | void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out,
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| 76 | size_t length, const AES_KEY *key,
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| 77 | const AES_KEY *key2, const unsigned char *ivec,
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| 78 | const int enc);
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| 79 |
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| 80 | int AES_wrap_key(AES_KEY *key, const unsigned char *iv,
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| 81 | unsigned char *out,
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| 82 | const unsigned char *in, unsigned int inlen);
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| 83 | int AES_unwrap_key(AES_KEY *key, const unsigned char *iv,
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| 84 | unsigned char *out,
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| 85 | const unsigned char *in, unsigned int inlen);
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| 86 |
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| 87 |
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| 88 | # ifdef __cplusplus
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| 89 | }
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| 90 | # endif
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| 91 |
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| 92 | #endif
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