LandOfFree - US Patents - Listing for Cryptography

Cryptography – Key management – Having particular key generator

Data communication system

Cryptography – Communication system using cryptography – Time segment interchange

Data communication system

Cryptography – Electric signal modification – Having production of printed copy

Data communication system and method with data scrambling

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data communication system and method with data scrambling

Cryptography – Key management – Having particular key generator

Data communication system using encrypted data packets

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data communication systems and methods

Cryptography – Communication system using cryptography

Data communications

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data communications equipment security device using calling part

Cryptography – Key management

Data communications system using public key cryptography in...

Cryptography – Video cryptography – Video electric signal modification

Data compression/encryption method and system

Cryptography – Communication system using cryptography – Time segment interchange

Data conversion device and data conversion method

Cryptography – Key management – Key distribution

Data copyright management method

Cryptography – Cryptanalysis

Data copyright management system

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data copyright management system

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data coypright management method

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data cryptography operations using control vectors

Cryptography – Communication system using cryptography – Having compression

Data decompression/decryption method and system

Cryptography – Communication system using cryptography – Symmetric key cryptography

Data decryption apparatus and data encryption apparatus

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

Data decryption methodology