System and methods for efficient authentication of medical...

System and scheme of cipher communication

System for an encryption key path diagnostic

System for bitstream generation

System for broadband descrambling of sync suppressed television

System for broadcasting data signals in a secure manner

System for communicating television signals or a plurality of di

System for controlling access to broadcast transmissions

System for controlling the distribution and use of digital works

System for data encryption and decryption of digital data...

System for delaying the activation of inactivity security mechan

System for detecting improper rewrites of data system for using

System for determination of the equivalence of two objects witho

System for determining a truth of software in an information pro

System for determining direct and indirect user access privilege

System for determining successful reception of a message

System for enabling information marketplace

System for enabling lazy-revocation through recursive key...

System for encoding data presented with a first coding device an

System for encrypted file storage optimization via...