Botan 2.19.2
Crypto and TLS for C&
tiger.h
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1/*
2* Tiger
3* (C) 1999-2007 Jack Lloyd
4*
5* Botan is released under the Simplified BSD License (see license.txt)
6*/
7
8#ifndef BOTAN_TIGER_H_
9#define BOTAN_TIGER_H_
10
11#include <botan/mdx_hash.h>
12
14
15namespace Botan {
16
17/**
18* Tiger
19*/
21 {
22 public:
23 std::string name() const override;
24 size_t output_length() const override { return m_hash_len; }
25
26 HashFunction* clone() const override
27 {
28 return new Tiger(output_length(), m_passes);
29 }
30
31 std::unique_ptr<HashFunction> copy_state() const override;
32
33 void clear() override;
34
35 /**
36 * @param out_size specifies the output length; can be 16, 20, or 24
37 * @param passes to make in the algorithm
38 */
39 Tiger(size_t out_size = 24, size_t passes = 3);
40 private:
41 void compress_n(const uint8_t[], size_t block) override;
42 void copy_out(uint8_t[]) override;
43
44 static void pass(uint64_t& A, uint64_t& B, uint64_t& C,
46 uint8_t mul);
47
48 static const uint64_t SBOX1[256];
49 static const uint64_t SBOX2[256];
50 static const uint64_t SBOX3[256];
51 static const uint64_t SBOX4[256];
52
53 secure_vector<uint64_t> m_X, m_digest;
54 const size_t m_hash_len, m_passes;
55 };
56
57}
58
59#endif
virtual size_t output_length() const =0
virtual std::unique_ptr< HashFunction > copy_state() const =0
virtual std::string name() const =0
void clear() override
Definition: mdx_hash.cpp:41
virtual void compress_n(const uint8_t blocks[], size_t block_n)=0
virtual void copy_out(uint8_t buffer[])=0
size_t output_length() const override
Definition: tiger.h:24
HashFunction * clone() const override
Definition: tiger.h:26
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
std::vector< T, secure_allocator< T > > secure_vector
Definition: secmem.h:65