NAME¶

ost::Digest - The digest base class is used for implementing and deriving one way hashing functions.

SYNOPSIS¶

#include <digest.h>

Inherits streambuf, and ostream.

Inherited by ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, and ost::MD5Digest.

Public Member Functions¶

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

Protected Member Functions¶

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

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@ostel.com base class for hashing services.

Constructor & Destructor Documentation¶

ost::Digest::Digest () [protected]¶

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

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.