jFileCrypt

jFileCrypt can encrypt your files fast and very secure with a password. It's written in Java 5 and runs under nearly every operating system. The encryption standards Blowfish, DES, 3DES, AES and RC4 are supported.

Version 0.3.0t:

• removed support for zip archives
• introduced a new archive type
• added automatic hash computation and verification functionality
• improved translation support
• added a confirmation window when clicking stop
• fixed bugs using RC4, DES, 3DES and AES encryption
• implemented use of CBC (cipher-block chaining) mode instead od the unsafe ECB (electronic codebook) mode
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Requirements

• Mac OS X 10.4 or later
• Java 5 or later