Botan 2.19.3
Crypto and TLS for C&
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
15namespace 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 output_length() const override
Definition keccak.h:33
size_t hash_block_size() const override
Definition keccak.h:32
std::string name
int(* final)(unsigned char *, CTX *)
#define BOTAN_PUBLIC_API(maj, min)
Definition compiler.h:31
#define BOTAN_FUTURE_INTERNAL_HEADER(hdr)
Definition compiler.h:136
std::vector< T, secure_allocator< T > > secure_vector
Definition secmem.h:65