LandOfFree - US Patents - Listing for Cryptography

Cryptography – Electric signal modification – Having production of printed copy

Postage meter system and verification of postage charges

Cryptography – Electric signal modification – Having production of printed copy

Postage metering system with dedicated and non-dedicated postage

Cryptography – Electric signal modification – Having production of printed copy

Postage payment system employing encryption techniques and accou

Cryptography – Electric signal modification – Having production of printed copy

Postal rating system with verifiable integrity

Cryptography – Communication system using cryptography – Symmetric key cryptography

Power line communication device and method of using the same

Cryptography – Particular algorithmic function encoding

Power signature attack resistant cryptography

Cryptography – Equipment test or malfunction indication

Power supply arrangement for fault-tolerant operation in a micro

Cryptography – Key management – Having particular key generator

Power supply control circuit in subscriber's terminal for contro

Cryptography – Cryptanalysis

Power-on password functions for computer system

Cryptography – Key management – Having particular key generator

Practical non-malleable public-key cryptosystem

Cryptography – Particular algorithmic function encoding – Public key

Practical non-malleable public-key cryptosystem

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Practical S box design

Cryptography – Particular algorithmic function encoding

Pre-computation and dual-pass modular arithmetic operation...

Cryptography – Cellular telephone cryptographic authentication

Pre-expiration purging of authentication key contexts

Cryptography – Key management – Having particular key generator

Pre-payment television system using a memory card associated wit

Cryptography – Cryptanalysis

Pre-scramble encoding method and apparatus for digital communica

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Preboot protection for a data security system with anti-intrusio

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Preboot protection of unauthorized use of programs and data with

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Preboot protection of unauthorized use of programs and data with