Botan 2.19.1
Crypto and TLS for C&
blake2b.h
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1/*
2* BLAKE2b
3* (C) 2016 cynecx
4*
5* Botan is released under the Simplified BSD License (see license.txt)
6*/
7
8#ifndef BOTAN_BLAKE2B_H_
9#define BOTAN_BLAKE2B_H_
10
11#include <botan/hash.h>
12#include <string>
13#include <memory>
14
16
17namespace Botan {
18
19/**
20* BLAKE2B
21*/
23 {
24 public:
25 /**
26 * @param output_bits the output size of BLAKE2b in bits
27 */
28 explicit BLAKE2b(size_t output_bits = 512);
29
30 size_t hash_block_size() const override { return 128; }
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 std::unique_ptr<HashFunction> copy_state() const override;
38
39 private:
40 void add_data(const uint8_t input[], size_t length) override;
41 void final_result(uint8_t out[]) override;
42
43 void state_init();
44 void compress(const uint8_t* data, size_t blocks, uint64_t increment);
45
46 const size_t m_output_bits;
47
49 size_t m_bufpos;
50
52 uint64_t m_T[2];
53 uint64_t m_F[2];
54 };
55
57
58}
59
60#endif
size_t output_length() const override
Definition: blake2b.h:31
size_t hash_block_size() const override
Definition: blake2b.h:30
virtual HashFunction * clone() const =0
virtual std::unique_ptr< HashFunction > copy_state() const =0
virtual std::string name() const =0
virtual void clear()=0
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
Definition: alg_id.cpp:13
BLAKE2b Blake2b
Definition: blake2b.h:56
std::vector< T, secure_allocator< T > > secure_vector
Definition: secmem.h:65