Botan 2.19.3
Crypto and TLS for C&
adler32.h
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1/*
2* Adler32
3* (C) 1999-2007 Jack Lloyd
4*
5* Botan is released under the Simplified BSD License (see license.txt)
6*/
7
8#ifndef BOTAN_ADLER32_H_
9#define BOTAN_ADLER32_H_
10
11#include <botan/hash.h>
12
14
15namespace Botan {
16
17/**
18* The Adler32 checksum, used in zlib
19*/
21 {
22 public:
23 std::string name() const override { return "Adler32"; }
24 size_t output_length() const override { return 4; }
25 HashFunction* clone() const override { return new Adler32; }
26 std::unique_ptr<HashFunction> copy_state() const override;
27
28 void clear() override { m_S1 = 1; m_S2 = 0; }
29
30 Adler32() { clear(); }
31 ~Adler32() { clear(); }
32 private:
33 void add_data(const uint8_t[], size_t) override;
34 void final_result(uint8_t[]) override;
35 uint16_t m_S1, m_S2;
36 };
37
38}
39
40#endif
size_t output_length() const override
Definition adler32.h:24
void clear() override
Definition adler32.h:28
std::string name() const override
Definition adler32.h:23
HashFunction * clone() const override
Definition adler32.h:25
virtual std::unique_ptr< HashFunction > copy_state() 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