Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpl-opus!hpnmdla!darrylo From: darrylo@hpnmdla.HP.COM (Darryl Okahata) Newsgroups: sci.electronics Subject: Re: Re^2: Electronic sweeping and debugging equiptments Message-ID: <2120002@hpnmdla.HP.COM> Date: 28 Aug 89 17:00:40 GMT References: Organization: HP Network Measurements Div, Santa Rosa, CA Lines: 17 In sci.electronics, honig@ics.uci.edu (David A. Honig) writes: > If you use a method of coding your messages where: > You use ordinary phrases to mean other things, > And you use a shared, trusted codebook ( translation lookup-table), > Then you could use unsecure channels to communicate securely. [ ... ] > If done right, this will not attract the attention that a scrambled or > otherwise coded signal would. In practice, it is extremely difficult to have a codebook that produces a conversation that makes sense and flows smoothly, and, if you do not have a coded message that makes sense and flows smoothly, it will stand out a like a sore thumb to trained eyes. -- Darryl Okahata darrylo%hpnmd@hpcea.HP.COM