Digest Class Reference

The digest base class is used for implementing and deriving one way hashing functions. More...

#include <digest.h>

Inheritance diagram for Digest:

Collaboration diagram for Digest:

Public Member Functions
virtual void	initDigest (void)=0
	Reset the digest table to an initial default value. More...
virtual	~Digest ()

Protected Member Functions
	Digest ()
virtual unsigned	getSize (void)=0
	Get the size of a digest in octets. More...
virtual unsigned	getDigest (unsigned char *buffer)=0
	Copy the binary digest buffer to user memory. More...
virtual void	putDigest (const unsigned char *buffer, unsigned length)=0
	Put data into the digest bypassing the stream subsystem. More...
virtual std::ostream &	strDigest (std::ostream &os)=0
	print a digest string for export. More...

Friends
std::ostream &	operator<< (std::ostream &os, Digest &ia)

Detailed Description

The digest base class is used for implementing and deriving one way hashing functions.

Author

David Sugar dyfet.nosp@m.@ost.nosp@m.el.co.nosp@m.m base class for hashing services.

Definition at line 70 of file digest.h.

Constructor & Destructor Documentation

Digest::Digest ( )

protected

virtual Digest::~Digest ( )

virtual

Member Function Documentation

virtual unsigned Digest::getDigest ( unsigned char *  buffer )

protectedpure virtual

Copy the binary digest buffer to user memory.

Returns

number of bytes in digest.

Parameters

buffer

to write into.

Implemented in MD5Digest, CRC32Digest, CRC16Digest, and ChecksumDigest.

virtual unsigned Digest::getSize ( void  )

protectedpure virtual

Get the size of a digest in octets.

Returns

number of bytes in digest.

Implemented in MD5Digest, CRC32Digest, CRC16Digest, and ChecksumDigest.

virtual void Digest::initDigest ( void  )

pure virtual

Reset the digest table to an initial default value.

Implemented in MD5Digest, CRC32Digest, CRC16Digest, and ChecksumDigest.

virtual void Digest::putDigest ( const unsigned char *  buffer, unsigned  length  )

protectedpure virtual

Put data into the digest bypassing the stream subsystem.

Parameters

buffer	to read from.
length	of data.

Implemented in MD5Digest, CRC32Digest, CRC16Digest, and ChecksumDigest.

virtual std::ostream& Digest::strDigest ( std::ostream &  os )

protectedpure virtual

print a digest string for export.

Returns

string representation of digest.

Implemented in MD5Digest, CRC32Digest, CRC16Digest, and ChecksumDigest.

Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  os, Digest &  ia  )

friend

Definition at line 105 of file digest.h.

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

• digest.h