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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::

std::streambuf std::ostream ost::ChecksumDigest ost::CRC16Digest ost::MD5Digest 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::ostreamstrDigest (std::ostream &os)=0
 print a digest string for export. More...


Friends

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

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>


Constructor & Destructor Documentation

ost::Digest::Digest   [protected]
 


Member Function Documentation

virtual 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, and ost::MD5Digest.

virtual 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, and ost::MD5Digest.

virtual void ost::Digest::initDigest void   [protected, pure virtual]
 

Reset the digest table to an initial default value.

Reimplemented in ost::ChecksumDigest, ost::CRC16Digest, and ost::MD5Digest.

virtual void ost::Digest::putDigest 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, and ost::MD5Digest.

virtual 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, and ost::MD5Digest.


Friends And Related Function Documentation

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


The documentation for this class was generated from the following file:
Generated at Fri Dec 21 08:31:33 2001 for CommonC++ by doxygen1.2.10 written by Dimitri van Heesch, © 1997-2001