-----BEGIN PGP SIGNED MESSAGE----- I just sent the following P.S. to newsday.com ---------------------- There is another reason to have cellular phones which encrypt only the over-the-air portion of a call, besides the fact that we can leave normal wiretap access procedures in place and not surrender civilian crypto keys to the government. If I have a cellular phone which encrypts over the air (between the phone and the base station) and I call you, while you have a normal wired phone, our call is protected by cryptography from interception off the air. If I use an AT&T Clipper-style cellular phone, as David suggested, and I call you on a normal wired phone, we can't encrypt the conversation and it is vulnerable to interception. The protection works *only* if both parties have encrypting phones while interoperate. - Carl -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMubl6lQXJENzYr45AQEYagQAmVL47KGCHUyee8246VjGqr7+uubTBhHA s/TtgFiMW7a9W5jbni5ov+kjTDeGpRULfrbyEwYR2fd1E1laNeu+EAQkE56KuU9g iiB0S7TBd290MSHJZ6wQUWsDVgCzOi9gHbCQwY+GMQMXKfphuC4kDavwdSxjAXAM MeZsitFRM1w= =TzsP -----END PGP SIGNATURE----- +------------------------------------------------------------------+ |Carl M. Ellison cme@acm.org http://www.clark.net/pub/cme | | PGP 2.6.2: 61 E2 DE 7F CB 9D 79 84 E9 C8 04 8B A6 32 21 A2 | +-Officer, officer, arrest that man. He's whistling a dirty song.--+