Botan 2.1.0 Crypto and TLS for C++11

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siphash.h
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1 /*
2 * SipHash
3 * (C) 2014,2015 Jack Lloyd
4 *
5 * Botan is released under the Simplified BSD License (see license.txt)
6 */
7
8 #ifndef BOTAN_SIPHASH_H__
9 #define BOTAN_SIPHASH_H__
10
11 #include <botan/mac.h>
12
13 namespace Botan {
14
15 class BOTAN_DLL SipHash final : public MessageAuthenticationCode
16 {
17 public:
18 SipHash(size_t c = 2, size_t d = 4) : m_C(c), m_D(d) {}
19
20 void clear() override;
21 std::string name() const override;
22
23 MessageAuthenticationCode* clone() const override;
24
25 size_t output_length() const override { return 8; }
26
27 Key_Length_Specification key_spec() const override
28 {
29 return Key_Length_Specification(16);
30 }
31 private:
32 void add_data(const uint8_t[], size_t) override;
33 void final_result(uint8_t[]) override;
34 void key_schedule(const uint8_t[], size_t) override;
35
36 const size_t m_C, m_D;
37 secure_vector<uint64_t> m_V;
38 uint64_t m_mbuf = 0;
39 size_t m_mbuf_pos = 0;
40 uint8_t m_words = 0;
41 };
42
43 }
44
45 #endif
Botan::Key_Length_Specification
Definition: key_spec.h:18
Botan::MessageAuthenticationCode
Definition: mac.h:20
Botan::SipHash::key_spec
Key_Length_Specification key_spec() const override
Definition: siphash.h:27
Botan::secure_vector
std::vector< T, secure_allocator< T >> secure_vector
Definition: secmem.h:121
Botan::SipHash::SipHash
SipHash(size_t c=2, size_t d=4)
Definition: siphash.h:18
Botan::SipHash::output_length
size_t output_length() const override
Definition: siphash.h:25
Botan
Definition: alg_id.cpp:13
Botan::SipHash
Definition: siphash.h:15