Botan 2.19.3
Crypto and TLS for C&
crc32.h
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1/*
2* CRC32
3* (C) 1999-2007 Jack Lloyd
4*
5* Botan is released under the Simplified BSD License (see license.txt)
6*/
7
8#ifndef BOTAN_CRC32_H_
9#define BOTAN_CRC32_H_
10
11#include <botan/hash.h>
12
14
15namespace Botan {
16
17/**
18* 32-bit cyclic redundancy check
19*/
21 {
22 public:
23 std::string name() const override { return "CRC32"; }
24 size_t output_length() const override { return 4; }
25 HashFunction* clone() const override { return new CRC32; }
26 std::unique_ptr<HashFunction> copy_state() const override;
27
28 void clear() override { m_crc = 0xFFFFFFFF; }
29
30 CRC32() { clear(); }
31 ~CRC32() { clear(); }
32 private:
33 void add_data(const uint8_t[], size_t) override;
34 void final_result(uint8_t[]) override;
35 uint32_t m_crc;
36 };
37
38}
39
40#endif
void clear() override
Definition crc32.h:28
std::string name() const override
Definition crc32.h:23
size_t output_length() const override
Definition crc32.h:24
HashFunction * clone() const override
Definition crc32.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