ost_Digest (3)

#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)

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

Author:

David Sugar [email protected] base class for hashing services.

ost::Digest::Digest ()\fC [protected]\fP

virtual ost::Digest::~Digest ()\fC [virtual]\fP

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

Copy the binary digest buffer to user memory.

Returns:

number of bytes in digest.

Parameters:

buffer to write into.

Implemented in ost::MD5Digest, ost::CRC32Digest, ost::CRC16Digest, and ost::ChecksumDigest.

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

Get the size of a digest in octets.

Returns:

number of bytes in digest.

Implemented in ost::MD5Digest, ost::CRC32Digest, ost::CRC16Digest, and ost::ChecksumDigest.

virtual void ost::Digest::initDigest (void)\fC [pure virtual]\fP

Reset the digest table to an initial default value.

Implemented in ost::MD5Digest, ost::CRC32Digest, ost::CRC16Digest, and ost::ChecksumDigest.

virtual void ost::Digest::putDigest (const unsigned char *buffer, unsignedlength)\fC [protected]\fP, \fC [pure virtual]\fP

Put data into the digest bypassing the stream subsystem.

Parameters:

buffer to read from.

length of data.

Implemented in ost::MD5Digest, ost::CRC32Digest, ost::CRC16Digest, and ost::ChecksumDigest.

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

print a digest string for export.

Returns:

string representation of digest.

Implemented in ost::MD5Digest, ost::CRC32Digest, ost::CRC16Digest, and ost::ChecksumDigest.

std::ostream& operator<< (std::ostream &os, \fBDigest\fP &ia)\fC [friend]\fP

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