ecrit-2----Page:7
1 2 3 4 5 6 7 8 9 10 11 12 13 14
|
Authentication Classical requirement: “must be able to place call without authentication” Really? ? anonymity! Probably really want place call without being a paying customer of IAP thus, may still be known to service provider former customer third-party cert (e.g., some government authority) device cert (“payphone on corner of Third and Main”) |