Cryptography in .NET

Cryptography is a very important thing for information security. Information security is composed of 4 parts: Integrity: ensure a document is not altered Confidentiality: ensure only authorized people can read a document Authentication: ensure the document was written by an identified person Non-Repudiation: prove who/where a document came from as well as the authenticity of that message, so the sender cannot deny they have sent it Let's see what .NET provides for each part!