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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 Digest::

List of all members.

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

Digest::Digest (    )  [protected]

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Member Function Documentation

virtual unsigned 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 ChecksumDigest, and CRC16Digest.

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

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

virtual void Digest::initDigest (  void   )  [protected, pure virtual]

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

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

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

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

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

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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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