Botan 2.13.0 Crypto and TLS for C++11

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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
13 BOTAN_FUTURE_INTERNAL_HEADER(crc32.h)
14
15 namespace Botan {
16
17 /**
18 * 32-bit cyclic redundancy check
19 */
20 class BOTAN_PUBLIC_API(2,0) CRC32 final : public HashFunction
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
Botan::CRC32::clear
void clear() override
Definition: crc32.h:28
final
int(* final)(unsigned char *, CTX *)
Definition: commoncrypto_hash.cpp:28
Botan::CRC32::output_length
size_t output_length() const override
Definition: crc32.h:24
BOTAN_PUBLIC_API
#define BOTAN_PUBLIC_API(maj, min)
Definition: compiler.h:31
Botan::CRC32::~CRC32
~CRC32()
Definition: crc32.h:31
Botan::CRC32::CRC32
CRC32()
Definition: crc32.h:30
Botan::CRC32
Definition: crc32.h:20
Botan::CRC32::name
std::string name() const override
Definition: crc32.h:23
Botan
Definition: alg_id.cpp:13
Botan::HashFunction
Definition: hash.h:20
Botan::CRC32::clone
HashFunction * clone() const override
Definition: crc32.h:25
Botan::HashFunction::clear
virtual void clear()=0
Botan::HashFunction::copy_state
virtual std::unique_ptr< HashFunction > copy_state() const =0
BOTAN_FUTURE_INTERNAL_HEADER
#define BOTAN_FUTURE_INTERNAL_HEADER(hdr)
Definition: compiler.h:139