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
Method and apparatus for controlling country specific frequency
Method and apparatus for cooperative messaging
Method and apparatus for creating and using an encrypted digital
Method and apparatus for creating, supporting, and using travell
Method and apparatus for creating, supporting, and using travell
Method and apparatus for credit card verification
Method and apparatus for cryptographic authentication
Method and apparatus for crytographically protecting data
Method and apparatus for data authentication in a data communica
Method and apparatus for data authentication in a data communica
Method and apparatus for data encryption and transmission
Method and apparatus for designing cipher logic, and a...
Method and apparatus for detecting unauthorized distribution of
Method and apparatus for digitizing a scrambled analog video sig
Method and apparatus for document verification and tracking