Encypt Signature Image Before Saving on the Server

Hi,

Last days, I was trying to ENCRYPT an image before saving it on the server for security reasons. The image is a signature.

A code in a page where it will be uploaded will encrypt it and save it. another page where the user can download a document SIGNED with the uploaded signature it must be DECRYPTED.

Since encyption and decryption are done in 2 different pages then we need to use the same KEY.

I am using framework 2 with vb.net. please help me with the code!

Thank you