man ost_Digest (Fonctions bibliothèques) - The digest base class is used for implementing and deriving one way hashing functions.base class for hashing services.
NAME
ost::Digest - The digest base class is used for implementing and deriving one way hashing functions.base class for hashing services.
SYNOPSIS
#include <digest.h>
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.
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.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.
Implemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, 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.
Implemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, and ost::MD5Digest.
virtual void ost::Digest::initDigest (void) [pure virtual]
Reset the digest table to an initial default value.
Implemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, and ost::MD5Digest.
virtual void ost::Digest::putDigest (const 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.
Implemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, 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.
Implemented in ost::ChecksumDigest, ost::CRC16Digest, ost::CRC32Digest, and ost::MD5Digest.
Friends And Related Function Documentation
std::ostream& operator<< (std::ostream & os, Digest & ia) [friend]
Author
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