Destiney Scripts DBSessions provides database connection code to assist PHP applications developers in handling secure, efficient, database-driven PHP sessions within a larger PHP application. It is a drop-in replacement for the default PHP session handling and does not require editing php.ini.
Saswire is a Perl program which generates a database in SDBM format containing the modification time, MD5 checksum, size, and creation time for a list of files specified in a input file. It is designed to check for unwanted modifications of Unix system binaries if security is compromised.
I/O Fender provides a simple and efficient binary buffer interface that is independent of the backstore used. The interface is much like the traditional file access interface; iofender buffers expand as needed, and an offset is kept for determining where in the buffer operations are applied.