Using Oracle 9i and PL/SQL, I need a way to encrypt a string, and pass the encrypted string to classic ASP within a querystring. Once received by ASP, I'll decrypt it and do what I need to do.
What encryption method should I use? I'm been contemplating RC4, but it seems easily cracked. The good news is RC4 is easily implemented within ASP, and is supported by Oracle 10g. For 9i, it seems I'll have to use a java based stored procedure to implement RC4. Please let me know if you have any better solutions for this as well.