Following the links from a /. story about a secure(?) mobile phone VectroTel in Switzerland is selling, I came across the fact that this firm sells a full line of encrypted phones.
http://www.vectrotel.ch/ The devices apparently use D-H key exchange to produce a 128 bit AES key which is then used as a stream cipher (presumably in OFB or a similar mode). Authentication appears to be via a 4 digit pin, certainly not the best of mechanisms. Does anyone out there know much about these products and their security properties (or lack thereof)? Perry --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]
