I'm trying to write application with cryptography (DES and RCA) using Bouncy Castle crypto. As i read some posts here, some people use it. But I have a problem with size of application. A simple application that just generate DES key, encrypt and decrypt message have size 280k after obfuscation with retroguard v1.1. It works on my SonyEricsson, but as i know Nokia mobile phones with MIDP 1.0 support application up to 64K only.
How did you solve this problem on Nokia phones?