Botan 3.9.0
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
13namespace Botan {
14
15/**
16* 32-bit cyclic redundancy check
17*/
18class CRC32 final : public HashFunction {
19 public:
20 std::string name() const override { return "CRC32"; }
21
22 size_t output_length() const override { return 4; }
23
24 std::unique_ptr<HashFunction> new_object() const override { return std::make_unique<CRC32>(); }
25
26 std::unique_ptr<HashFunction> copy_state() const override;
27
28 void clear() override { m_crc = 0xFFFFFFFF; }
29
30 private:
31 void add_data(std::span<const uint8_t> input) override;
32 void final_result(std::span<uint8_t> output) override;
33 uint32_t m_crc = 0xFFFFFFFF;
34};
35
36} // namespace Botan
37
38#endif
void final(uint8_t out[])
Definition buf_comp.h:69
void clear() override
Definition crc32.h:28
std::unique_ptr< HashFunction > copy_state() const override
Definition crc32.cpp:89
std::string name() const override
Definition crc32.h:20
std::unique_ptr< HashFunction > new_object() const override
Definition crc32.h:24
size_t output_length() const override
Definition crc32.h:22