Botan 2.1.0 Crypto and TLS for C++11

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keccak.h
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1 /*
2 * Keccak
3 * (C) 2010 Jack Lloyd
4 *
5 * Botan is released under the Simplified BSD License (see license.txt)
6 */
7
8 #ifndef BOTAN_KECCAK_H__
9 #define BOTAN_KECCAK_H__
10
11 #include <botan/hash.h>
12 #include <botan/secmem.h>
13 #include <string>
14
15 namespace Botan {
16
17 /**
18 * Keccak[1600], a SHA-3 candidate
19 */
20 class BOTAN_DLL Keccak_1600 final : public HashFunction
21 {
22 public:
23
24 /**
25 * @param output_bits the size of the hash output; must be one of
26 * 224, 256, 384, or 512
27 */
28 explicit Keccak_1600(size_t output_bits = 512);
29
30 size_t hash_block_size() const override { return m_bitrate / 8; }
31 size_t output_length() const override { return m_output_bits / 8; }
32
33 HashFunction* clone() const override;
34 std::string name() const override;
35 void clear() override;
36
37 private:
38 void add_data(const uint8_t input[], size_t length) override;
39 void final_result(uint8_t out[]) override;
40
41 size_t m_output_bits, m_bitrate;
42 secure_vector<uint64_t> m_S;
43 size_t m_S_pos;
44 };
45
46 }
47
48 #endif
Botan::Keccak_1600::hash_block_size
size_t hash_block_size() const override
Definition: keccak.h:30
Botan::secure_vector
std::vector< T, secure_allocator< T >> secure_vector
Definition: secmem.h:121
Botan::Keccak_1600::output_length
size_t output_length() const override
Definition: keccak.h:31
Botan
Definition: alg_id.cpp:13
Botan::HashFunction
Definition: hash.h:19
Botan::Keccak_1600
Definition: keccak.h:20