File encryption / decription in CodeIgniter

[eluser]Birger Eelen[/eluser]
Hi,

I'm fairly new to CodeIgniter but I like the flexibility which allows me to code faster and better!

I am building an application where users can upload their files to the server and download them when they want. I'd like to add some security so I encrypted the filename and the reference to the database.

However, a full textsearch on the server will still reveal the file, so I want the files to be encrypted when uploading and decrypted when downloading. Is this possible with CodeIgniter? I've seen the Encryption Class but that's limited to strings.

Thanks,

Birger