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Re: [Discuss-gnuradio] "A scanner with a digital output" address@hidden:

From: John Gilmore
Subject: Re: [Discuss-gnuradio] "A scanner with a digital output" address@hidden: @stake wows the wireless rubes...]
Date: Thu, 21 Mar 2002 04:27:47 -0800

> For what it's worth, the vast majority of Blackberry traffic is 
> triple-des encrypted end-to-end with quite long keys.

One of the great things about GNU Radio is that we are building and
spreading the tools for raw spectrum access, such that anyone who
cares can easily check whether statements like this are true.  Or
can examine the radio traffic from their OWN blackberry to see whether
it's encrypted or not.


PS:  Mere use of long keys doesn't end the security inquiry.  If it's
easy for an attack to discover what those keys are, it doesn't matter
how long they are.  Like, if every Blackberry uses the same key :-),
or if they send it to new units over the air when initializing them,
or if, like in GSM phones, some of the key bits somehow end up as zeroes,
via sub rosa intervention from government wiretap representatives.

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