Crypto++ 8.9 Free C++ class library of cryptographic schemes

adler32.h
Go to the documentation of this file.
1 // adler32.h - originally written and placed in the public domain by Wei Dai
2
3 /// \file adler32.h
4 /// \brief Class file for ADLER-32 checksum calculations
5
6 #ifndef CRYPTOPP_ADLER32_H
7 #define CRYPTOPP_ADLER32_H
8
9 #include "cryptlib.h"
10
11 NAMESPACE_BEGIN(CryptoPP)
12
13 /// ADLER-32 checksum calculations
14 class Adler32 : public HashTransformation
15 {
16 public:
17 CRYPTOPP_CONSTANT(DIGESTSIZE = 4);
18 Adler32() {Reset();}
19 void Update(const byte *input, size_t length);
20 void TruncatedFinal(byte *hash, size_t size);
21 unsigned int DigestSize() const {return DIGESTSIZE;}
22 CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Adler32";}
23 std::string AlgorithmName() const {return StaticAlgorithmName();}
24
25 private:
26 void Reset() {m_s1 = 1; m_s2 = 0;}
27
28 word16 m_s1, m_s2;
29 };
30
31 NAMESPACE_END
32
33 #endif
Adler32
ADLER-32 checksum calculations.
Definition: adler32.h:15
Adler32::DigestSize
unsigned int DigestSize() const
Provides the digest size of the hash.
Definition: adler32.h:21
Adler32::AlgorithmName
std::string AlgorithmName() const
Provides the name of this algorithm.
Definition: adler32.h:23
HashTransformation
Interface for hash functions and data processing part of MACs.
Definition: cryptlib.h:1118
word16
unsigned short word16
16-bit unsigned datatype
Definition: config_int.h:69
cryptlib.h
Abstract base classes that provide a uniform interface to this library.
CryptoPP
Crypto++ library namespace.