Subscriber terminal with plug in expansion card

Subscription control for television programming

Subscription television picture scrambling and descrambling syst

Substitution-box for symmetric-key ciphers

Symmetric cryptographic system for data encryption

Symmetric cryptographic system for data encryption

Symmetric cryptosystem using cascaded chaotic maps

Synchronized chaotic system and communication system using synch

Synchronous system for parallel data scrambling

System and apparatus for controlled production of a secure ident

System and apparatus for monitoring secure information in a comp

System and individual device for participation in a broadcast pr

System and method for a fast hardware implementation of RC4

System and method for a multi-application smart card which can f

System and method for access data control

System and method for access field verification

System and method for access field verification

System and method for authenticating cellular telephonic communi

System and method for authenticating transmission and receipt of

System and method for authentication of goods