In article ,
Mark wrote:

As for decrypting true digital encrypted transmissions, I don't believe there
is such an animal since you NEED the key. Without it, you're just guessing.
Perhaps this box rambles through keys in a trial and error mode until it picks
up a signal? Depending on the key size, this could take countless years to
accomplish.

One thing to remeber is that cracking an encryption key in these fixed
key type systems, can be done with bruteforce technequecs with some ease.
Once the key has been found it is unlikely that it would be changed
as any new key would need to be programed into ALL units on the system.
Most of these PRS Systems don't use a Rolling Key Codes, as keeping
evveryone in sync is a major headache, and PITA.
Just get 50 CPU's clunking along on the same sample bitstream, and
when you get the key, don't let on to the systems folks that the
key is out.


Me cracked a pile of fixed keys over the years......