> Demonstrating the insecurity of a 512 bit key is easy to do without cracking a real life key someone else owns; just generate your own to show it can be done

> Demonstrating the insecurity of a 512 bit key is easy to do without cracking a real life key someone else owns; just generate your own to show it can be done As I said in my post, no company will listen to your hypothetical exploit. Show them youve hacked their system and they listen.