For a newly release product PIX 501,

1)Are DES, 3DES, and AES activation keys all pre-installed with?

2) How can I find out which one of them is pre-installed on my PIX 501?

3) When I create a VPN server (on the PIX 501), I can see all three DES, 3DES and AES are available in the PDM configuration screen 's dropdown box. Does this mean my PIX 501 have all three of them (DES, 3DES, and AES)? --If answer is NO. Assume only the DES is pre-installed on PIX 501, then why/how can the 3DES and AES appear in the dropdown box?

Thanks to help.

Scott