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SHA384 Class Reference

#include <sha.h>

Inheritance diagram for SHA384:

IteratedHashWithStaticTransform< word64, BigEndian, 128, 64, SHA384, 48 > ClonableImpl< SHA384, AlgorithmImpl< IteratedHash< word64, BigEndian, T_BlockSize >, SHA384 > > AlgorithmImpl< IteratedHash< word64, BigEndian, T_BlockSize >, SHA384 > IteratedHash< word64, BigEndian, T_BlockSize > IteratedHashBase2< word64, BigEndian, HashTransformation > IteratedHashBase< word64, HashTransformation > HashTransformation Algorithm Clonable List of all members.

Detailed Description

implements the SHA-384 standard

Definition at line 46 of file sha.h.

Public Types

typedef BigEndian ByteOrderClass
typedef IteratedHashBase<
word64, HashTransformation
>::HashWordType 
HashWordType

Public Member Functions

unsigned int DigestSize () const
 size of the hash returned by Final()
ClonableClone () const
 this is not implemented by most classes yet
std::string AlgorithmName () const
 returns name of this algorithm, not universally implemented yet
void TruncatedFinal (byte *digest, unsigned int size)
 truncated version of Final()
unsigned int BlockSize () const
 block size of underlying compression function, or 0 if not block based
unsigned int OptimalBlockSize () const
 input to Update() should have length a multiple of this for optimal speed
unsigned int OptimalDataAlignment () const
 returns how input should be aligned for optimal performance
void Update (const byte *input, unsigned int length)
 process more input
byte * CreateUpdateSpace (unsigned int &size)
 request space to write input into
void Restart ()
 discard the current state, and restart with a new message
virtual void Final (byte *digest)
 compute hash for current message, then restart for a new message
virtual void CalculateDigest (byte *digest, const byte *input, unsigned int length)
 use this if your input is in one piece and you don't want to call Update() and Final() separately
virtual bool Verify (const byte *digest)
 verify that digest is a valid digest for the current message, then reinitialize the object
virtual bool VerifyDigest (const byte *digest, const byte *input, unsigned int length)
 use this if your input is in one piece and you don't want to call Update() and Verify() separately
virtual void CalculateTruncatedDigest (byte *digest, unsigned int digestSize, const byte *input, unsigned int length)
 truncated version of CalculateDigest()
virtual bool TruncatedVerify (const byte *digest, unsigned int digestLength)
 truncated version of Verify()
virtual bool VerifyTruncatedDigest (const byte *digest, unsigned int digestLength, const byte *input, unsigned int length)
 truncated version of VerifyDigest()

Static Public Member Functions

void InitState (HashWordType *state)
void Transform (word64 *digest, const word64 *data)
const char * StaticAlgorithmName ()
void CorrectEndianess (HashWordType *out, const HashWordType *in, unsigned int byteCount)

Static Public Attributes

CompileAssert<((BLOCKSIZE
&(BLOCKSIZE-1))==0) 
cryptopp_assert___LINE__ )

Protected Member Functions

void HashEndianCorrectedBlock (const word64 *data)
virtual void HashEndianCorrectedBlock (const HashWordType *data)=0
void Init ()
void HashBlock (const HashWordType *input)
virtual void HashBlock (const word64 *input)=0
void SetBlockSize (unsigned int blockSize)
void SetStateSize (unsigned int stateSize)
word64 GetBitCountHi () const
word64 GetBitCountLo () const
virtual unsigned int HashMultipleBlocks (const word64 *input, unsigned int length)
void PadLastBlock (unsigned int lastBlockSize, byte padFirst=0x80)
void ThrowIfInvalidTruncatedSize (unsigned int size) const

Protected Attributes

SecBlock< word64 > m_data
SecBlock< word64 > m_digest


Member Function Documentation

virtual void HashTransformation::Final byte *  digest  )  [inline, virtual, inherited]
 

compute hash for current message, then restart for a new message

Precondition:
size of digest == DigestSize().
Definition at line 532 of file cryptlib.h.

Referenced by PKCS5_PBKDF2_HMAC< T >::DeriveKey(), HashFilter::Put2(), and HMAC_Base::TruncatedFinal().

virtual bool HashTransformation::Verify const byte *  digest  )  [inline, virtual, inherited]
 

verify that digest is a valid digest for the current message, then reinitialize the object

Default implementation is to call Final() and do a bitwise comparison between its output and digest. Definition at line 558 of file cryptlib.h.


The documentation for this class was generated from the following files:
Generated on Wed Jul 21 19:16:08 2004 for Crypto++ by doxygen 1.3.7-20040704