Botan 2.1.0 Crypto and TLS for C++11

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blowfish.h
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1 /*
2 * Blowfish
3 * (C) 1999-2011 Jack Lloyd
4 *
5 * Botan is released under the Simplified BSD License (see license.txt)
6 */
7
8 #ifndef BOTAN_BLOWFISH_H__
9 #define BOTAN_BLOWFISH_H__
10
11 #include <botan/block_cipher.h>
12
13 namespace Botan {
14
15 /**
16 * Blowfish
17 */
18 class BOTAN_DLL Blowfish final : public Block_Cipher_Fixed_Params<8, 1, 56>
19 {
20 public:
21 void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
22 void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
23
24 /**
25 * Modified EKSBlowfish key schedule, used for bcrypt password hashing
26 */
27 void eks_key_schedule(const uint8_t key[], size_t key_length,
28 const uint8_t salt[16], size_t workfactor);
29
30 void clear() override;
31 std::string name() const override { return "Blowfish"; }
32 BlockCipher* clone() const override { return new Blowfish; }
33 private:
34 void key_schedule(const uint8_t key[], size_t length) override;
35
36 void key_expansion(const uint8_t key[],
37 size_t key_length,
38 const uint8_t salt[16]);
39
40 void generate_sbox(secure_vector<uint32_t>& box,
41 uint32_t& L, uint32_t& R,
42 const uint8_t salt[16],
43 size_t salt_off) const;
44
45 secure_vector<uint32_t> m_S, m_P;
46 };
47
48 }
49
50 #endif
Botan::Blowfish::name
std::string name() const override
Definition: blowfish.h:31
Botan::secure_vector
std::vector< T, secure_allocator< T >> secure_vector
Definition: secmem.h:121
Botan
Definition: alg_id.cpp:13
Botan::Blowfish::clone
BlockCipher * clone() const override
Definition: blowfish.h:32
Botan::Blowfish
Definition: blowfish.h:18
Botan::Block_Cipher_Fixed_Params
Definition: block_cipher.h:183
Botan::BlockCipher
Definition: block_cipher.h:19