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Re: Possible [Best?] Scenario
Anonymous User scripsit
> Let's say I have a digital cellular phone. I also have Anonymous Remailers,
> PGP, and over 100 BBS numbers (structured for which day and which hour each
> would be used) so that I can contact and talk to my "Friend."
> Please tell me how the LEA's can find me and understand the transactions
> between us?
You don't give us enough information.
Are your attackers looking for known parties?
How secure is your cellular? Do you operate from a known or a guessable
location? Is your "Friend" known? Suspected? His location, guessable?
If your location were known it would be a simple matter to monitor
the area, say put a van just outside your site and wait for cellular
activity of a strength that suggests your presence. How likely would it
be that someone else is using a cellular phone in your presence? Given
this, it is probably not difficult to obtain the billing/ESN number for
your phone, and then obtain detailed traffic information about your
transmissions. Given that it is a simple matter to conduct a lower tech
attack, say tempest, and pick up the conversation as you compose it, end
running the encryption so to speak. You think in too shallow a fashion.
Security is about more than communications security.
Even if yours is perfect, how about your friends. A tempest attack on
his site while he is using Word for Windows is just as effective as one
Modify this tactic to use a phone which uses several different ESN's at
random or move your location often and at random.
> If I have several encryption programs, can I 'layer' each document [I PGP the
> file, the I DES the PGP file, then IDEA for the final layer.
Worthless given the above attack.
> Does the NSA have to crack it one layer at a time, or can they bombard it,
> crack the layers in whatever order the supercomputer finds?
Again, unimportant given the cheaper low tech solution.
> If I am missing something, please let me know what I have missed.
Been there, did that.
073BB885A786F666 nemo repente fuit turpissimus - potestas scientiae in usu est
6E6D4506F6EDBC17 quaere verum ad infinitum, loquitur sub rosa - wichtig!