NAME
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 ChecksumDigest, CRC16Digest, CRC32Digest, MD5Digest, SHADigest< uint_type, blockSizeInBytes >, and SHADigest< uint64, 64 >.
Protected Methods
Digest ()
virtual void initDigest (void)=0
Reset the digest table to an initial default value. 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 <[email protected]>
CONSTRUCTOR & DESTRUCTOR DOCUMENTATION
Digest::Digest () [protected]
MEMBER FUNCTION DOCUMENTATION
virtual unsigned 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 ChecksumDigest, CRC16Digest, CRC32Digest, MD5Digest, and SHA64DigestHelper.
virtual unsigned Digest::getSize (void) [protected, pure virtual]
Get the size of a digest in octets.
Returns: number of bytes in digest.
Implemented in ChecksumDigest, CRC16Digest, CRC32Digest, MD5Digest, SHADigest< uint_type, blockSizeInBytes >, SHA1Digest, SHA256Digest, and SHADigest< uint64, 64 >.
virtual void Digest::initDigest (void) [protected, pure virtual]
Reset the digest table to an initial default value.
Implemented in ChecksumDigest, CRC16Digest, CRC32Digest, MD5Digest, SHADigest< uint_type, blockSizeInBytes >, SHA1Digest, SHA256Digest, and SHADigest< uint64, 64 >.
virtual void 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 ChecksumDigest, CRC16Digest, CRC32Digest, MD5Digest, SHADigest< uint_type, blockSizeInBytes >, and SHADigest< uint64, 64 >.
virtual std::ostream& Digest::strDigest (std::ostream & os) [protected, pure virtual]
print a digest string for export.
Returns: string representation of digest.
Implemented in ChecksumDigest, CRC16Digest, CRC32Digest, MD5Digest, SHADigest< uint_type, blockSizeInBytes >, SHA64DigestHelper, and SHADigest< uint64, 64 >.
FRIENDS AND RELATED FUNCTION DOCUMENTATION
std::ostream& operator<< (std::ostream & os, Digest & ia) [friend]
AUTHOR
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