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ost::Digest Class Reference

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

#include <digest.h>

Inheritance diagram for ost::Digest::

List of all members.

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

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Detailed Description

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

Author:

David Sugar <dyfet@ostel.com>

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Constructor & Destructor Documentation

ost::Digest::Digest ( ) [protected]

ost::Digest::~Digest ( ) [virtual]

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Member Function Documentation

unsigned ost::Digest::getDigest ( unsigned char * buffer ) [protected, pure virtual]

Copy the binary digest buffer to user memory. Returns: number of bytes in digest. Parameters: buffer   to write into. Reimplemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, and ost::MD5Digest.

unsigned ost::Digest::getSize ( void ) [protected, pure virtual]

Get the size of a digest in octets. Returns: number of bytes in digest. Reimplemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, and ost::MD5Digest.

void ost::Digest::initDigest ( void ) [pure virtual]

Reset the digest table to an initial default value. Reimplemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, and ost::MD5Digest.

void ost::Digest::putDigest ( const unsigned char * buffer, unsigned len ) [protected, pure virtual]

Put data into the digest bypassing the stream subsystem. Parameters: buffer   to read from. length   of data. Reimplemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, and ost::MD5Digest.

std::ostream & ost::Digest::strDigest ( std::ostream & os ) [protected, pure virtual]

print a digest string for export. Returns: string representation of digest. Reimplemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, and ost::MD5Digest.

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Friends And Related Function Documentation

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

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

• digest.h

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