Stegdetect is an automated tool for detecting steganographic content in images. It is capable of detecting several different steganographic methods to embed hidden information in JPEG images. Currently, the detectable schemes are

• jsteg,
• jphide (unix and windows),
• invisible secrets,
• outguess 01.3b,
• F5 (header analysis),
• appendX and camouflage.

I2P is an anonymizing network, offering a simple layer that identity-sensitive applications can use to securely communicate. All data is wrapped with several layers of encryption, and the network is both distributed and dynamic, with no trusted parties.

md5deep is an MD5 program that can compute recursively, compare hashes with a database, and estimates the time to completion.

MD5summer is an application for Microsoft Windows 9x, NT, ME, 2000 and XP which generates and verifies md5 checksums. Its output file is compatible with the output of the Linux GNU MD5Sum and it will also read Linux generated files.