encrypted cellphones
Eric Blossom
eb at comsec.com
Wed Jan 31 18:54:33 PST 1996
> Cellphones, of course, can only (usefully) use encryption if the
> cellular service provider uses it (i.e. if the end that's listening
> to your radio transmission can decode it :-) American cell-phone
> providers don't. The GSM phones used in much of the world have encryption,
> but it's apparently not very strong.
Don't forget the more attractive option: End-to-end. Why leave the
plaintext available for the cellular provider?
Eric
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