Crypto++ 7.0 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...

Inheritance diagram for Keccak_Final< T_DigestSize >:

## Public Member Functions
| Keccak_Final ()
| Construct a Keccak-X message digest.
unsigned int | BlockSize () const
| Provides the block size of the compression function. More...
Public Member Functions inherited from Keccak
| Keccak (unsigned int digestSize)
| Construct a Keccak. More...
unsigned int | DigestSize () const
| Provides the digest size of the hash. More...
std::string | AlgorithmName () const
| Provides the name of this algorithm. 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
HashTransformation & | Ref ()
| Provides a reference to this object. More...
virtual byte * | CreateUpdateSpace (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...
unsigned int | TagSize () const
| Provides the tag size of the hash. More...
virtual unsigned int | OptimalBlockSize () const
| Provides the input block size most efficient for this hash. 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 | 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 | AlgorithmProvider () const
| Retrieve the provider of this algorithm. More...
Public Member Functions inherited from Clonable
virtual Clonable * | Clone () const
| Copies this object. More...

## Static Public Member Functions
static std::string | StaticAlgorithmName ()
Static Public Member Functions inherited from Keccak
static const char * | 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_DigestSize | the size of the digest, in bytes

Since
  Crypto++ 6.0

Definition at line 72 of file keccak.h.

## Member Function Documentation

## ◆ BlockSize()

template<unsigned int T_DigestSize>

unsigned int Keccak_Final< T_DigestSize >::BlockSize | ( |  | ) | const
| inline virtual

Provides the block size of the compression function.

Returns
  the block size of the compression function, in bytes

BlockSize() will return 0 if the hash is not block based. For example, SHA3 is a recursive hash (not an iterative hash), and it does not have a block size.

Reimplemented from HashTransformation.

Definition at line 81 of file keccak.h.

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

- keccak.h