ost::digest(3)
NAME
ost::Digest - The digest base class is used for implementing and
deriving one way hashing functions.
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. 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::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 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 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.
- 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.
Friends And Related Function Documentation
std::ostream& operator<< (std::ostream & os, Digest & ia) [friend]
Author
- Generated automatically by Doxygen for GNU CommonC++ from the source
code.