LandOfFree - US Patents - Listing for Cryptography

Cryptography – Key management – Having particular key generator

Secure software rental system using continuous asynchronous pass

Secure software rental system using distributed software

Cryptography – By modifying optical image

Secure spread spectrum watermarking for multimedia data

Cryptography – By modifying optical image

Secure spread spectrum watermarking for multimedia data

Cryptography – Key management – Key escrow or recovery

Secure storage of private keys

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Secure system and method for providing personal identifier

Secure system for activating personal computer software at remot

Secure system for activating personal computer software at remot

Cryptography – Key management – Having particular key generator

Secure telecommunications

Secure telecommunications

Secure telecommunications

Cryptography – Key management – Having particular key generator

Secure telecommunications

Cryptography – Communication system using cryptography – Wireless communication

Secure telecommunications

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Secure telecommunications data transmission

Cryptography – Particular algorithmic function encoding

Secure telecommunications system for wireless local area...

Cryptography – Communication system using cryptography – Wireless communication

Secure teleconferencing

Cryptography – Key management – Having particular key generator

Secure teleconferencing system

Cryptography – Communication system using cryptography – Wireless communication

Secure telemetric link

Cryptography – Communication system using cryptography – Wireless communication

Secure telephone terminal