I am currently building a site with extremely secure information and would like to add form encryption like jCryption http://www.jcryption.org/ . I was wondering if Kirby had encryption integrated and if not how I should securely add a RSA key(public and private) to my site. Would I add it to a .ssh folder or create a datebase? Thanks!
Yes, there is built-in encryption: TLS. 
Basically a standard TLS connection should do exactly what jCryption does, but it’s most definitely more secure and reliable. You can use stuff like jCryption additionally if your use-case actually depends on this kind of encryption, but I don’t think you do.
If you really want to, the jCryption reference can be applied 1:1 to your Kirby site.