Botan  2.13.0
Crypto and TLS for C++11
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 
18 
19 /**
20 * Keccak[1600], a SHA-3 candidate
21 */
23  {
24  public:
25 
26  /**
27  * @param output_bits the size of the hash output; must be one of
28  * 224, 256, 384, or 512
29  */
30  explicit Keccak_1600(size_t output_bits = 512);
31 
32  size_t hash_block_size() const override { return m_bitrate / 8; }
33  size_t output_length() const override { return m_output_bits / 8; }
34 
35  HashFunction* clone() const override;
36  std::unique_ptr<HashFunction> copy_state() const override;
37  std::string name() const override;
38  void clear() override;
39 
40  private:
41  void add_data(const uint8_t input[], size_t length) override;
42  void final_result(uint8_t out[]) override;
43 
44  size_t m_output_bits, m_bitrate;
46  size_t m_S_pos;
47  };
48 
49 }
50 
51 #endif
size_t hash_block_size() const override
Definition: keccak.h:32
int(* final)(unsigned char *, CTX *)
#define BOTAN_PUBLIC_API(maj, min)
Definition: compiler.h:31
std::string name
size_t output_length() const override
Definition: keccak.h:33
Definition: alg_id.cpp:13
std::vector< T, secure_allocator< T > > secure_vector
Definition: secmem.h:65
#define BOTAN_FUTURE_INTERNAL_HEADER(hdr)
Definition: compiler.h:139