[FedCom] Troops Deploy to Border Areas

[gary]

With encrypted traffic, all you can do is "traffic analysis." Lucky for 
me somebody wrote a wiki:
http://en.wikipedia.org/wiki/Traffic_analysis

Not spelled out in the wiki, but with trunked radio system, you have the 
radio ID and group. For systems with multiple sites, you can watch 
individual radios travel from site to site.

Good comsec requires messages to be sent even if nothing is happening. 
Otherwise if there is heavy encrypted traffic all of a sudeen, you know 
something is up, but not exactly what is going down. For the scanner 
enthusiast, this generally isn't very useful. For a criminal, say drug 
dealer, if you hear a lot of encrypted traffic, you might decide to stay 
home that night.

Occasionally, the encryption is dropped. It could be training, or 
perhaps one radio in the team can't decrypt so they go in the clear.






On 8/6/2010 8:16 PM, JER1538A at aol.com wrote:
>
>
>> You will be suprised what can be determined from even Encrypted Traffic.
>
>
>     WHATS THE BIG SURPRISE ?
>
>
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