Crypto++  5.6.4
Free C++ class library of cryptographic schemes
Public Member Functions | Static Public Member Functions | List of all members
Whirlpool Class Reference

Whirlpool More...

+ Inheritance diagram for Whirlpool:

Public Member Functions

void TruncatedFinal (byte *hash, size_t size)
 Computes the hash of the current message. More...
 
- Public Member Functions inherited from IteratedHashWithStaticTransform< word64, BigEndian, 64, 64, Whirlpool >
unsigned int DigestSize () const
 Provides the digest size of the hash. More...
 
- Public Member Functions inherited from ClonableImpl< Whirlpool, AlgorithmImpl< IteratedHash< word64, BigEndian, T_BlockSize >, Whirlpool > >
ClonableClone () const
 
- Public Member Functions inherited from AlgorithmImpl< IteratedHash< word64, BigEndian, T_BlockSize >, Whirlpool >
std::string AlgorithmName () const
 
- Public Member Functions inherited from IteratedHash< word64, BigEndian, T_BlockSize >
unsigned int BlockSize () const
 Provides the block size of the hash. More...
 
ByteOrder GetByteOrder () const
 Provides the byte order of the hash. More...
 
void CorrectEndianess (HashWordType *out, const HashWordType *in, size_t byteCount)
 Adjusts the byte ordering of the hash. More...
 
- Public Member Functions inherited from IteratedHashBase< word64, HashTransformation >
 IteratedHashBase ()
 Construct an IteratedHashBase.
 
unsigned int OptimalBlockSize () const
 Provides the input block size most efficient for this cipher. 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...
 
byte * CreateUpdateSpace (size_t &size)
 Requests space which can be written into by the caller. More...
 
void Restart ()
 Restart the hash. More...
 
void TruncatedFinal (byte *digest, size_t digestSize)
 Computes the hash of the current message. More...
 
- Public Member Functions inherited from HashTransformation
HashTransformationRef ()
 Provides a reference to this object. 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 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...
 

Static Public Member Functions

static void InitState (HashWordType *state)
 The Whirlpool hashing function. More...
 
static void Transform (word64 *digest, const word64 *data)
 
static const char * StaticAlgorithmName ()
 
- Static Public Member Functions inherited from AlgorithmImpl< IteratedHash< word64, BigEndian, T_BlockSize >, Whirlpool >
static std::string StaticAlgorithmName ()
 

Additional Inherited Members

- Public Types inherited from IteratedHash< word64, BigEndian, T_BlockSize >
typedef BigEndian ByteOrderClass
 
typedef word64 HashWordType
 
- Public Types inherited from IteratedHashBase< word64, HashTransformation >
typedef word64 HashWordType
 
- Static Public Attributes inherited from IteratedHashWithStaticTransform< word64, BigEndian, 64, 64, Whirlpool >
static const int DIGESTSIZE
 
- Static Public Attributes inherited from IteratedHash< word64, BigEndian, T_BlockSize >
static const int BLOCKSIZE
 

Detailed Description

Whirlpool

Definition at line 10 of file whrlpool.h.

Member Function Documentation

void Whirlpool::InitState ( HashWordType *  state)
static

The Whirlpool hashing function.

References

The Whirlpool algorithm was developed by Paulo S. L. M. Barreto and Vincent Rijmen.

See P.S.L.M. Barreto, V. Rijmen, ``The Whirlpool hashing function,'' NESSIE submission, 2000 (tweaked version, 2001), https://www.cosic.esat.kuleuven.ac.be/nessie/workshop/submissions/whirlpool.zip

Author
Paulo S.L.M. Barreto
Vincent Rijmen.
Version
3.0 (2003.03.12)

=============================================================================

Differences from version 2.1:

  • Suboptimal diffusion matrix replaced by cir(1, 1, 4, 1, 8, 5, 2, 9).

=============================================================================

Differences from version 2.0:

  • Generation of ISO/IEC 10118-3 test vectors.
  • Bug fix: nonzero carry was ignored when tallying the data length (this bug apparently only manifested itself when feeding data in pieces rather than in a single chunk at once).
  • Support for MS Visual C++ 64-bit integer arithmetic.

Differences from version 1.0:

  • Original S-box replaced by the tweaked, hardware-efficient version.

=============================================================================

THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition at line 95 of file whrlpool.cpp.

void Whirlpool::TruncatedFinal ( byte *  digest,
size_t  digestSize 
)
virtual

Computes the hash of the current message.

Parameters
digesta pointer to the buffer to receive the hash
digestSizethe size of the truncated digest, in bytes

TruncatedFinal() call Final() and then copies digestSize bytes to digest. The hash is restarted the hash for the next message.

Implements HashTransformation.

Definition at line 100 of file whrlpool.cpp.


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