Jacksum

Jacksum is a platform-independent utility for computing and verifying checksums, CRCs, and message digests, as well as timestamps of files. It supports most common checksum algorithms. The format of the output is fully customizable. The program is large-file-aware, and recursive file processing as well as platform-independent file verification are supported.

[License]		OSI Approved :: GNU General Public License (GPL)
[Operating System]		MacOS X, Microsoft, Microsoft :: Windows, Microsoft :: Windows :: Windows 95/98/ME, Microsoft :: Windows :: Windows NT/2000/XP, OS Independent, OS/2, POSIX :: Linux, POSIX :: SunOS/Solaris, Unix
[Programming Language]		Java
[Topic]		Education, Security, Utilities