Computer with password processing function and password processi
Computer-based training system with student verification
Computer-telephone security device
Computerized method for signing a message
Computerized payment system for purchasing goods and services on
Computerized purchasing system and method for mediating purchase
Computing and indicating device
Computing method for elliptic curve cryptography
Computing modular polynomials modulo large primes
Conditional access system
Conditional access system
Conditional access system using messages with multiple encryptio
Configuration stream encryption
Construction symmetric ciphers using the cast design procedure
Consumer oriented smart card system and authentication technique
Controlled acceptance mail payment and evidencing system
Controlled authorization of descrambling of scrambled programs b
Controlled dissemination of digital information
Controlled modular cryptography apparatus and method
Controlled use of cryptographic keys via generating station esta