AspEncrypt is an Active Server component that brings security to your application through encryption. With AspEncrypt, you can encrypt data, send S/MIME-based secure mail, compute one-way hash values, generate and verify digital signatures, issue and manage X.509 digital certificates, and more.
Please see the following links for more information:
http://www.aspencrypt.com/tasks.html
http://www.aspencrypt.com/objectreference.html