S/Key - OTP Generator for J2ME architecture. An RFC2289 compliant One-Time Password generator for mobile phone supporting Java language. It uses MD4 and MD5 hash algorithms.
Cryptographically secure your files with asymmetric and symmetric keys, as well as password based encryptions and file/text checksums. Use upto 6 different keys to encrypt/decrypt and get checksums using MD2, MD5, SHA1, CRC32, etc..
A GUI Java utility to split a file into multiple chunks. A typical application is to copy a large file onto several floppies. It generates MD5 for each chunk.
dupliFinder is a app that searches your computer for duplicate files by compairing the MD5 sum of each file. You then have the option of deleting any duplicate files found. Great for collections of MP3s, images etc.. Runs on Windows & Linux with Java 1.5
Synclair is a tool for diff'ing and synchronizing directories. It also includes a utility to find duplicate files (by name, or md5 hash). It is a command line tool, written in Java.
A similar to Tripwire, file system integrity checking tool but develop in java and cross platform.
This tools checking and source control using check sum algorithm like MD5, SHA and CRC.