LandOfFree - US Patents - Listing for Cryptography

Cryptography – Electric signal masking – By signal having discrete frequency component

Apparatus and methods for including codes in audio signals

Cryptography – Electric signal masking

Apparatus and methods for including codes in audio signals

Cryptography – Electric signal masking

Apparatus and methods for including codes in audio signals

Cryptography – Cryptanalysis

Apparatus and methods for including codes in audio signals and d

Cryptography – Cryptanalysis

Apparatus and methods for including codes in audio signals and d

Cryptography – Key management – Key distribution

Apparatus and methods for managing key material in...

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Apparatus and methods for verifying the identity of a party

Cryptography – Cryptanalysis

Apparatus and storage medium for decrypting information

Cryptography – Key management – Key distribution

Apparatus for and method of controlling propagation of...

Cryptography – Key management – Key distribution

Apparatus for and method of controlling propagation of...

Cryptography – Communication system using cryptography – Symmetric key cryptography

Apparatus for and method of detecting initialization vector...

Cryptography – Particular algorithmic function encoding

Apparatus for and method of overhead reduction in a block...

Cryptography – Communication system using cryptography – Wireless communication

Apparatus for and method of securely downloading and...

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Apparatus for avoiding complementarity in an encryption algorith

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Apparatus for communicating with data systems and a method of co

Cryptography – Particular algorithmic function encoding

Apparatus for computing streamcipher TSC-4

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Apparatus for data copyright management system

Cryptography – Key management – Having particular key generator

Apparatus for defeating radar speed detection signals

Cryptography – Video cryptography – Video electric signal modification

Apparatus for descrambling a data retrieved from an optical...