Store and verify MD5 checksums within file's extended attributes. Operational on individual files as well as entire directory trees of files. Using this routinely will detect if bit-rot or other unwanted modification of lowlevel file content has occurred.
Online Hierarchical Storage Manager (OHSM) is the first attempt towards an enterprise level open source data storage manager which automatically moves data between high-cost and low-cost storage media.
Software repository of the hack://src project. Includes security related software for crypto, vulnerability/patch notification & management, and ultra lowlevel system access for stealth forensics & intrusion detection or malware removal.