LandOfFree - US Patents - Listing for Cryptography

Cryptography – Communication system using cryptography – Data stream/substitution enciphering

Data access and permute unit

Cryptography – Key management – Key escrow or recovery

Data access control system and method thereof

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data access verification system

Cryptography – Key management – Having particular key generator

Data acquiring apparatus

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data acquisition device

Cryptography – Video cryptography – Video electric signal modification

Data administration method

Cryptography – Key management – Having particular key generator

Data authentication and protection system

Cryptography – Key management – Having particular key generator

Data authentication circuit

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data authentication using modification detection codes based on

Cryptography – Cryptanalysis

Data broadcasting system

Cryptography – Equipment test or malfunction indication

Data carrier and write/read device therefor

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data carrier-controlled terminal in a data exchange system

Cryptography – Particular algorithmic function encoding

Data cipher processors

Cryptography – Electric signal modification – Having production of printed copy

Data ciphering device

Cryptography – Video cryptography – Video electric signal modification

Data coding

Cryptography – Communication system using cryptography

Data communication apparatus, control method therefor, and...

Cryptography – Communication system using cryptography – Wireless communication

Data communication equipment, data communication system, and...

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data communication method and apparatus using neural-networks

Cryptography – Communication system using cryptography – Fiber optic network

Data communication system