Iside - Iside is a message digest, hash code computing tool. It can be used for file integrity checking. It also compares files and folders by computing their hash code (MD5,SHA1,CRC32,...).
NCrypt TX - NCrypt TX is a text based cryptographic tool with Steganography capabilities. Supports DES, Rijndael-AES, SHA, and MD5 algorithms. Convert your e-mail or other messages into a sequence of encrypted hexadecimal or Base64 characters.
NShred - With NShred you can eliminate confidential data from PC drives. Name, size, contents of erased file or folder can never be recovered, by any software or hardware means. Follows standard recommendations, such as US Department of Defense (DOD).
LLCryptoLib - LLCryptoLib provides properties and methods for object-oriented cryptography software tools for .NET on Windows systems. It offers both text and stream encryption classes and hashing functions for text and binary files plus shredding functions.
LLMd5Sum - LittleLite LLMd5Sum is a simple md5sum generator with SHA1 and MD5 support.