1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* AES using SSSE3
* (C) 2010 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_AES_SSSE3_H__
#define BOTAN_AES_SSSE3_H__
#include <botan/block_cipher.h>
namespace Botan {
/**
* AES-128 using SSSE3
*/
class BOTAN_DLL AES_128_SSSE3 : public BlockCipher_Fixed_Block_Size<16>
{
public:
void encrypt_n(const byte in[], byte out[], size_t blocks) const;
void decrypt_n(const byte in[], byte out[], size_t blocks) const;
void clear() { zeroise(EK); zeroise(DK); }
std::string name() const { return "AES-128"; }
BlockCipher* clone() const { return new AES_128_SSSE3; }
AES_128_SSSE3() : BlockCipher_Fixed_Block_Size(16),
EK(44), DK(44) {}
private:
void key_schedule(const byte[], size_t);
SecureVector<u32bit> EK, DK;
};
/**
* AES-192 using SSSE3
*/
class BOTAN_DLL AES_192_SSSE3 : public BlockCipher_Fixed_Block_Size<16>
{
public:
void encrypt_n(const byte in[], byte out[], size_t blocks) const;
void decrypt_n(const byte in[], byte out[], size_t blocks) const;
void clear() { zeroise(EK); zeroise(DK); }
std::string name() const { return "AES-192"; }
BlockCipher* clone() const { return new AES_192_SSSE3; }
AES_192_SSSE3() : BlockCipher_Fixed_Block_Size(24),
EK(52), DK(52) {}
private:
void key_schedule(const byte[], size_t);
SecureVector<u32bit> EK, DK;
};
/**
* AES-256 using SSSE3
*/
class BOTAN_DLL AES_256_SSSE3 : public BlockCipher_Fixed_Block_Size<16>
{
public:
void encrypt_n(const byte in[], byte out[], size_t blocks) const;
void decrypt_n(const byte in[], byte out[], size_t blocks) const;
void clear() { zeroise(EK); zeroise(DK); }
std::string name() const { return "AES-256"; }
BlockCipher* clone() const { return new AES_256_SSSE3; }
AES_256_SSSE3() : BlockCipher_Fixed_Block_Size(32),
EK(60), DK(60) {}
private:
void key_schedule(const byte[], size_t);
SecureVector<u32bit> EK, DK;
};
}
#endif
|
