Method and apparatus for authenticating recorded media
Method and apparatus for authenticating the location of remote u
Method and apparatus for authenticating users of a communication
Method and apparatus for authentication in a communication syste
Method and apparatus for authentication in a communication syste
Method and apparatus for authentication in a communication syste
Method and apparatus for authentication of client server communi
Method and apparatus for authentication of client server...
Method and apparatus for authentication of postage accounting re
Method and apparatus for authorizing remote internet access
Method and apparatus for autokey rotor encryption
Method and apparatus for calculating message signatures in advan
Method and apparatus for changing the master key in a cryptograp
Method and apparatus for collaborative document control
Method and apparatus for communication of video, audio, teletext
Method and apparatus for continuously acknowledged link encrypti
Method and apparatus for continuously acknowledged link encrypti
Method and apparatus for controlling access to a communication s
Method and apparatus for controlling access to digital signals
Method and apparatus for controlling country specific frequency