LTKCPP-- LLRP Toolkit C Plus Plus Library
aes.h
1 /* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */
2 /* ====================================================================
3  * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
4  *
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6  * modification, are permitted provided that the following conditions
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51 
52 #ifndef HEADER_AES_H
53 # define HEADER_AES_H
54 
55 # include <openssl/opensslconf.h>
56 
57 # ifdef OPENSSL_NO_AES
58 # error AES is disabled.
59 # endif
60 
61 # include <stddef.h>
62 
63 # define AES_ENCRYPT 1
64 # define AES_DECRYPT 0
65 
66 /*
67  * Because array size can't be a const in C, the following two are macros.
68  * Both sizes are in bytes.
69  */
70 # define AES_MAXNR 14
71 # define AES_BLOCK_SIZE 16
72 
73 #ifdef __cplusplus
74 extern "C" {
75 #endif
76 
77 /* This should be a hidden type, but EVP requires that the size be known */
78 struct aes_key_st {
79 # ifdef AES_LONG
80  unsigned long rd_key[4 * (AES_MAXNR + 1)];
81 # else
82  unsigned int rd_key[4 * (AES_MAXNR + 1)];
83 # endif
84  int rounds;
85 };
86 typedef struct aes_key_st AES_KEY;
87 
88 const char *AES_options(void);
89 
90 int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
91  AES_KEY *key);
92 int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
93  AES_KEY *key);
94 
95 int private_AES_set_encrypt_key(const unsigned char *userKey, const int bits,
96  AES_KEY *key);
97 int private_AES_set_decrypt_key(const unsigned char *userKey, const int bits,
98  AES_KEY *key);
99 
100 void AES_encrypt(const unsigned char *in, unsigned char *out,
101  const AES_KEY *key);
102 void AES_decrypt(const unsigned char *in, unsigned char *out,
103  const AES_KEY *key);
104 
105 void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
106  const AES_KEY *key, const int enc);
107 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
108  size_t length, const AES_KEY *key,
109  unsigned char *ivec, const int enc);
110 void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
111  size_t length, const AES_KEY *key,
112  unsigned char *ivec, int *num, const int enc);
113 void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
114  size_t length, const AES_KEY *key,
115  unsigned char *ivec, int *num, const int enc);
116 void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
117  size_t length, const AES_KEY *key,
118  unsigned char *ivec, int *num, const int enc);
119 void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
120  size_t length, const AES_KEY *key,
121  unsigned char *ivec, int *num);
122 void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
123  size_t length, const AES_KEY *key,
124  unsigned char ivec[AES_BLOCK_SIZE],
125  unsigned char ecount_buf[AES_BLOCK_SIZE],
126  unsigned int *num);
127 /* NB: the IV is _two_ blocks long */
128 void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
129  size_t length, const AES_KEY *key,
130  unsigned char *ivec, const int enc);
131 /* NB: the IV is _four_ blocks long */
132 void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out,
133  size_t length, const AES_KEY *key,
134  const AES_KEY *key2, const unsigned char *ivec,
135  const int enc);
136 
137 int AES_wrap_key(AES_KEY *key, const unsigned char *iv,
138  unsigned char *out,
139  const unsigned char *in, unsigned int inlen);
140 int AES_unwrap_key(AES_KEY *key, const unsigned char *iv,
141  unsigned char *out,
142  const unsigned char *in, unsigned int inlen);
143 
144 
145 #ifdef __cplusplus
146 }
147 #endif
148 
149 #endif /* !HEADER_AES_H */