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 23 extern "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 /* This should be a hidden type, but EVP requires that the size be known */ 36 struct aes_key_st { 37 #ifdef AES_LONG 38 unsigned long rd_key[4 * (AES_MAXNR + 1)]; 39 #else 40 unsigned int rd_key[4 * (AES_MAXNR + 1)]; 41 #endif 42 int rounds; 43 }; 44 typedef struct aes_key_st AES_KEY; 45 46 #endif 47 #ifndef OPENSSL_NO_DEPRECATED_3_0 48 OSSL_DEPRECATEDIN_3_0 const char *AES_options(void); 49 OSSL_DEPRECATEDIN_3_0 50 int AES_set_encrypt_key(const unsigned char *userKey, const int bits, 51 AES_KEY *key); 52 OSSL_DEPRECATEDIN_3_0 53 int AES_set_decrypt_key(const unsigned char *userKey, const int bits, 54 AES_KEY *key); 55 OSSL_DEPRECATEDIN_3_0 56 void AES_encrypt(const unsigned char *in, unsigned char *out, 57 const AES_KEY *key); 58 OSSL_DEPRECATEDIN_3_0 59 void AES_decrypt(const unsigned char *in, unsigned char *out, 60 const AES_KEY *key); 61 OSSL_DEPRECATEDIN_3_0 62 void AES_ecb_encrypt(const unsigned char *in, unsigned char *out, 63 const AES_KEY *key, const int enc); 64 OSSL_DEPRECATEDIN_3_0 65 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, 66 size_t length, const AES_KEY *key, 67 unsigned char *ivec, const int enc); 68 OSSL_DEPRECATEDIN_3_0 69 void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, 70 size_t length, const AES_KEY *key, 71 unsigned char *ivec, int *num, const int enc); 72 OSSL_DEPRECATEDIN_3_0 73 void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, 74 size_t length, const AES_KEY *key, 75 unsigned char *ivec, int *num, const int enc); 76 OSSL_DEPRECATEDIN_3_0 77 void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, 78 size_t length, const AES_KEY *key, 79 unsigned char *ivec, int *num, const int enc); 80 OSSL_DEPRECATEDIN_3_0 81 void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, 82 size_t length, const AES_KEY *key, 83 unsigned char *ivec, int *num); 84 85 /* NB: the IV is _two_ blocks long */ 86 OSSL_DEPRECATEDIN_3_0 87 void AES_ige_encrypt(const unsigned char *in, unsigned char *out, 88 size_t length, const AES_KEY *key, 89 unsigned char *ivec, const int enc); 90 /* NB: the IV is _four_ blocks long */ 91 OSSL_DEPRECATEDIN_3_0 92 void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out, 93 size_t length, const AES_KEY *key, const AES_KEY *key2, 94 const unsigned char *ivec, const int enc); 95 OSSL_DEPRECATEDIN_3_0 96 int AES_wrap_key(AES_KEY *key, const unsigned char *iv, 97 unsigned char *out, const unsigned char *in, 98 unsigned int inlen); 99 OSSL_DEPRECATEDIN_3_0 100 int AES_unwrap_key(AES_KEY *key, const unsigned char *iv, 101 unsigned char *out, const unsigned char *in, 102 unsigned int inlen); 103 #endif 104 105 #ifdef __cplusplus 106 } 107 #endif 108 109 #endif 110