Clipper and Traffic Analysis
Eric Hughes
hughes at ah.com
Tue Feb 15 07:11:42 PST 1994
>Does anyone here have any thoughts as to whether Clipper enables traffic
>analysis or tracing more easy than it normally is under Switching System
>7?
SS7 uses out-of-band signalling. The clipper LEAF is an in-band
signal. Therefore a tap for clipper yields two kinds of information,
content and identities.
Tapping an SS7 signalling network is more expensive and more difficult
to justify. More expensive because it runs packet-switched, more
difficult because it's not the conversation of any particular party
except the phone company.
Eric
More information about the cypherpunks-legacy
mailing list