Andrey.Rusyaev 

A pure managed C# implementation of well-known cryptographic hash functions such as SHA-family (SHA0, SHA1, SHA2, SHA256, SHA384, SHA512), MD-family (MD2, MD4, MD5), RIPEMD, Tiger, Haval, Snefru and others.

Implements shell notifications watcher (SHChangeNotify & SHCNE_ events).