LandOfFree - US Patents - Listing for Cryptography

Cryptography – Video cryptography – Video electric signal modification

Seamless switching between multiple pre-encrypted video files

Cryptography – Video cryptography – Video electric signal modification

Seamless switching between multiple pre-encrypted video files

Cryptography – Cryptanalysis

Searching for patterns in encrypted data

Cryptography – Equipment test or malfunction indication

Secrecy device for wiretapping prevention and detection

Cryptography – Particular algorithmic function encoding – Public key

Secret communication and authentication scheme based on...

Cryptography – Cryptanalysis

Secret communication apparatus

Cryptography – Key management – Having particular key generator

Secret communication control apparatus

Cryptography – Key management – Key distribution

Secret communications system and channel control method

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Secret identification number checking system

Cryptography – Key management – Key distribution

Secret information management apparatus and secret...

Cryptography – Key management – Key escrow or recovery

Secret information management scheme based on secret sharing...

Cryptography – Cryptanalysis

Secret information service system and method

Cryptography – Particular algorithmic function encoding

Secret key cryptosystem and method utilizing factorizations of p

Cryptography – Key management – Key distribution

Secret key distribution method and secret key distribution...

Cryptography – Key management – Having particular key generator

Secret key generation method, encryption method,...

Cryptography – Communication system using cryptography – Symmetric key cryptography

Secret key messaging

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Secret key transfer method which is highly secure and can restri

Cryptography – Key management

Secret key transfer method which is highly secure and can restri

Cryptography – Particular algorithmic function encoding

Secret sharing apparatus, method, and program