JavaScript ECDH Key Exchange

http://www-cs-students.stanford.edu/~tjw/jsbn/

Good Job Stanford University!

How to generate key pairs, encrypt and decrypt data with .NET (C#)

http://blogs.msdn.com/b/alejacma/archive/2008/10/23/how-to-generate-key-pairs-encrypt-and-decrypt-data-with-net-c.aspx

Delete files in Linux by date from Command Line

http://www.webhostingtalk.com/showthread.php?t=287454