Bitcoin ABC  0.26.3
P2P Digital Currency
aes.h
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1 // Copyright (c) 2015-2016 The Bitcoin Core developers
2 // Distributed under the MIT software license, see the accompanying
3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 //
5 // C++ wrapper around ctaes, a constant-time AES implementation
6 
7 #ifndef BITCOIN_CRYPTO_AES_H
8 #define BITCOIN_CRYPTO_AES_H
9 
10 extern "C" {
11 #include <crypto/ctaes/ctaes.h>
12 }
13 
14 static const int AES_BLOCKSIZE = 16;
15 static const int AES128_KEYSIZE = 16;
16 static const int AES256_KEYSIZE = 32;
17 
20 private:
22 
23 public:
24  explicit AES128Encrypt(const uint8_t key[16]);
26  void Encrypt(uint8_t ciphertext[16], const uint8_t plaintext[16]) const;
27 };
28 
31 private:
33 
34 public:
35  explicit AES128Decrypt(const uint8_t key[16]);
37  void Decrypt(uint8_t plaintext[16], const uint8_t ciphertext[16]) const;
38 };
39 
42 private:
44 
45 public:
46  explicit AES256Encrypt(const uint8_t key[32]);
48  void Encrypt(uint8_t ciphertext[16], const uint8_t plaintext[16]) const;
49 };
50 
53 private:
55 
56 public:
57  explicit AES256Decrypt(const uint8_t key[32]);
59  void Decrypt(uint8_t plaintext[16], const uint8_t ciphertext[16]) const;
60 };
61 
63 public:
64  explicit AES256CBCEncrypt(const uint8_t key[AES256_KEYSIZE],
65  const uint8_t ivIn[AES_BLOCKSIZE], bool padIn);
67  int Encrypt(const uint8_t *data, int size, uint8_t *out) const;
68 
69 private:
71  const bool pad;
72  uint8_t iv[AES_BLOCKSIZE];
73 };
74 
76 public:
77  explicit AES256CBCDecrypt(const uint8_t key[AES256_KEYSIZE],
78  const uint8_t ivIn[AES_BLOCKSIZE], bool padIn);
80  int Decrypt(const uint8_t *data, int size, uint8_t *out) const;
81 
82 private:
84  const bool pad;
85  uint8_t iv[AES_BLOCKSIZE];
86 };
87 
89 public:
90  explicit AES128CBCEncrypt(const uint8_t key[AES128_KEYSIZE],
91  const uint8_t ivIn[AES_BLOCKSIZE], bool padIn);
93  int Encrypt(const uint8_t *data, int size, uint8_t *out) const;
94 
95 private:
97  const bool pad;
98  uint8_t iv[AES_BLOCKSIZE];
99 };
100 
102 public:
103  explicit AES128CBCDecrypt(const uint8_t key[AES128_KEYSIZE],
104  const uint8_t ivIn[AES_BLOCKSIZE], bool padIn);
106  int Decrypt(const uint8_t *data, int size, uint8_t *out) const;
107 
108 private:
110  const bool pad;
111  uint8_t iv[AES_BLOCKSIZE];
112 };
113 
114 #endif // BITCOIN_CRYPTO_AES_H
static const int AES128_KEYSIZE
Definition: aes.h:15
static const int AES256_KEYSIZE
Definition: aes.h:16
static const int AES_BLOCKSIZE
Definition: aes.h:14
~AES128CBCDecrypt()
Definition: aes.cpp:206
uint8_t iv[AES_BLOCKSIZE]
Definition: aes.h:111
const bool pad
Definition: aes.h:110
int Decrypt(const uint8_t *data, int size, uint8_t *out) const
Definition: aes.cpp:210
AES128CBCDecrypt(const uint8_t key[AES128_KEYSIZE], const uint8_t ivIn[AES_BLOCKSIZE], bool padIn)
Definition: aes.cpp:199
const AES128Decrypt dec
Definition: aes.h:109
int Encrypt(const uint8_t *data, int size, uint8_t *out) const
Definition: aes.cpp:194
AES128CBCEncrypt(const uint8_t key[AES128_KEYSIZE], const uint8_t ivIn[AES_BLOCKSIZE], bool padIn)
Definition: aes.cpp:183
uint8_t iv[AES_BLOCKSIZE]
Definition: aes.h:98
const AES128Encrypt enc
Definition: aes.h:96
~AES128CBCEncrypt()
Definition: aes.cpp:190
const bool pad
Definition: aes.h:97
A decryption class for AES-128.
Definition: aes.h:30
AES128Decrypt(const uint8_t key[16])
Definition: aes.cpp:26
AES128_ctx ctx
Definition: aes.h:32
~AES128Decrypt()
Definition: aes.cpp:30
void Decrypt(uint8_t plaintext[16], const uint8_t ciphertext[16]) const
Definition: aes.cpp:34
An encryption class for AES-128.
Definition: aes.h:19
AES128Encrypt(const uint8_t key[16])
Definition: aes.cpp:13
void Encrypt(uint8_t ciphertext[16], const uint8_t plaintext[16]) const
Definition: aes.cpp:21
~AES128Encrypt()
Definition: aes.cpp:17
AES128_ctx ctx
Definition: aes.h:21
const bool pad
Definition: aes.h:84
const AES256Decrypt dec
Definition: aes.h:83
AES256CBCDecrypt(const uint8_t key[AES256_KEYSIZE], const uint8_t ivIn[AES_BLOCKSIZE], bool padIn)
Definition: aes.cpp:167
uint8_t iv[AES_BLOCKSIZE]
Definition: aes.h:85
int Decrypt(const uint8_t *data, int size, uint8_t *out) const
Definition: aes.cpp:174
~AES256CBCDecrypt()
Definition: aes.cpp:179
uint8_t iv[AES_BLOCKSIZE]
Definition: aes.h:72
AES256CBCEncrypt(const uint8_t key[AES256_KEYSIZE], const uint8_t ivIn[AES_BLOCKSIZE], bool padIn)
Definition: aes.cpp:151
const bool pad
Definition: aes.h:71
int Encrypt(const uint8_t *data, int size, uint8_t *out) const
Definition: aes.cpp:158
~AES256CBCEncrypt()
Definition: aes.cpp:163
const AES256Encrypt enc
Definition: aes.h:70
A decryption class for AES-256.
Definition: aes.h:52
AES256Decrypt(const uint8_t key[32])
Definition: aes.cpp:52
~AES256Decrypt()
Definition: aes.cpp:56
void Decrypt(uint8_t plaintext[16], const uint8_t ciphertext[16]) const
Definition: aes.cpp:60
AES256_ctx ctx
Definition: aes.h:54
An encryption class for AES-256.
Definition: aes.h:41
void Encrypt(uint8_t ciphertext[16], const uint8_t plaintext[16]) const
Definition: aes.cpp:47
~AES256Encrypt()
Definition: aes.cpp:43
AES256Encrypt(const uint8_t key[32])
Definition: aes.cpp:39
AES256_ctx ctx
Definition: aes.h:43