Method and apparatus for preventing unauthorized transmissions

Method and apparatus for privacy and authentication in wireless

Method and apparatus for privacy of traffic behavior on a shared

Method and apparatus for protecting cordless telephone account a

Method and apparatus for protecting flash memory

Method and apparatus for protecting material on storage media

Method and apparatus for protecting material on storage media an

Method and apparatus for protecting the confidentiality of passw

Method and apparatus for protecting the confidentiality of passw

Method and apparatus for providing access control in a secure op

Method and apparatus for providing conditional access in connect

Method and apparatus for providing interactive electronic progra

Method and apparatus for providing optional service functions in

Method and apparatus for providing secure access to a limited ac

Method and apparatus for providing secure communications for a r

Method and apparatus for purchasing and delivering digital goods

Method and apparatus for relaying digitally signed messages

Method and apparatus for restrospectively identifying an individ

Method and apparatus for retrieving X.509 certificates from an X

Method and apparatus for scramble type broadcast receiving with