Crypto++ 8.7
Free C++ class library of cryptographic schemes
Public Member Functions | Static Public Member Functions | Static Public Attributes | List of all members
Keccak_Final< T_DigestSize > Class Template Reference

Keccak message digest template. More...

#include <keccak.h>

+ Inheritance diagram for Keccak_Final< T_DigestSize >:

Public Member Functions

 Keccak_Final ()
 Construct a Keccak-X message digest. More...
 
unsigned int BlockSize () const
 Provides the block size of the compression function. More...
 
std::string AlgorithmName () const
 Provides the name of this algorithm. More...
 
- Public Member Functions inherited from Keccak
unsigned int DigestSize () const
 Provides the digest size of the hash. More...
 
unsigned int OptimalDataAlignment () const
 Provides input and output data alignment for optimal performance. More...
 
void Update (const byte *input, size_t length)
 Updates a hash with additional input. More...
 
void Restart ()
 Restart the hash. More...
 
void TruncatedFinal (byte *hash, size_t size)
 Computes the hash of the current message. More...
 
- Public Member Functions inherited from HashTransformation
HashTransformationRef ()
 Provides a reference to this object. More...
 
virtual void Update (const byte *input, size_t length)=0
 Updates a hash with additional input. More...
 
virtual byteCreateUpdateSpace (size_t &size)
 Request space which can be written into by the caller. More...
 
virtual void Final (byte *digest)
 Computes the hash of the current message. More...
 
virtual void Restart ()
 Restart the hash. More...
 
virtual unsigned int DigestSize () const =0
 Provides the digest size of the hash. More...
 
unsigned int TagSize () const
 Provides the tag size of the hash. More...
 
virtual unsigned int BlockSize () const
 Provides the block size of the compression function. More...
 
virtual unsigned int OptimalBlockSize () const
 Provides the input block size most efficient for this hash. More...
 
virtual unsigned int OptimalDataAlignment () const
 Provides input and output data alignment for optimal performance. More...
 
virtual void CalculateDigest (byte *digest, const byte *input, size_t length)
 Updates the hash with additional input and computes the hash of the current message. More...
 
virtual bool Verify (const byte *digest)
 Verifies the hash of the current message. More...
 
virtual bool VerifyDigest (const byte *digest, const byte *input, size_t length)
 Updates the hash with additional input and verifies the hash of the current message. More...
 
virtual void TruncatedFinal (byte *digest, size_t digestSize)=0
 Computes the hash of the current message. More...
 
virtual void CalculateTruncatedDigest (byte *digest, size_t digestSize, const byte *input, size_t length)
 Updates the hash with additional input and computes the hash of the current message. More...
 
virtual bool TruncatedVerify (const byte *digest, size_t digestLength)
 Verifies the hash of the current message. More...
 
virtual bool VerifyTruncatedDigest (const byte *digest, size_t digestLength, const byte *input, size_t length)
 Updates the hash with additional input and verifies the hash of the current message. More...
 
- Public Member Functions inherited from Algorithm
 Algorithm (bool checkSelfTestStatus=true)
 Interface for all crypto algorithms. More...
 
virtual std::string AlgorithmName () const
 Provides the name of this algorithm. More...
 
virtual std::string AlgorithmProvider () const
 Retrieve the provider of this algorithm. More...
 
- Public Member Functions inherited from Clonable
virtual ClonableClone () const
 Copies this object. More...
 

Static Public Member Functions

static std::string StaticAlgorithmName ()
 

Static Public Attributes

static const int DIGESTSIZE = T_DigestSize
 
static const int BLOCKSIZE = 200 - 2 * DIGESTSIZE
 

Detailed Description

template<unsigned int T_DigestSize>
class Keccak_Final< T_DigestSize >

Keccak message digest template.

Template Parameters
T_DigestSizethe size of the digest, in bytes
Since
Crypto++ 6.0

Definition at line 72 of file keccak.h.

Constructor & Destructor Documentation

◆ Keccak_Final()

template<unsigned int T_DigestSize>
Keccak_Final< T_DigestSize >::Keccak_Final ( )
inline

Construct a Keccak-X message digest.

Definition at line 81 of file keccak.h.

Member Function Documentation

◆ StaticAlgorithmName()

template<unsigned int T_DigestSize>
static std::string Keccak_Final< T_DigestSize >::StaticAlgorithmName ( )
inlinestatic

Definition at line 77 of file keccak.h.

◆ BlockSize()

template<unsigned int T_DigestSize>
unsigned int Keccak_Final< T_DigestSize >::BlockSize ( ) const
inlinevirtual

Provides the block size of the compression function.

Returns
block size of the compression function, in bytes

BlockSize() will return 0 if the hash is not block based or does not have an equivalent block size. For example, Keccak and SHA-3 do not have a block size, but they do have an equivalent block size called rate expressed as r.

Reimplemented from HashTransformation.

Definition at line 89 of file keccak.h.

◆ AlgorithmName()

template<unsigned int T_DigestSize>
std::string Keccak_Final< T_DigestSize >::AlgorithmName ( ) const
inlinevirtual

Provides the name of this algorithm.

Returns
the standard algorithm name

The standard algorithm name can be a name like AES or AES/GCM. Some algorithms do not have standard names yet. For example, there is no standard algorithm name for Shoup's ECIES.

Note
AlgorithmName is not universally implemented yet.

Reimplemented from Algorithm.

Definition at line 91 of file keccak.h.

Member Data Documentation

◆ DIGESTSIZE

template<unsigned int T_DigestSize>
const int Keccak_Final< T_DigestSize >::DIGESTSIZE = T_DigestSize
static

Definition at line 75 of file keccak.h.

◆ BLOCKSIZE

template<unsigned int T_DigestSize>
const int Keccak_Final< T_DigestSize >::BLOCKSIZE = 200 - 2 * DIGESTSIZE
static

Definition at line 76 of file keccak.h.


The documentation for this class was generated from the following file: