Cryptography system

Cryptography system and method for providing cryptographic servi

Cryptoinformation repeater, subscriber terminal connected theret

Cryptosystem employing worst-case difficult-to solve lattice pro

Cryptosystem for optical storage

Cryptosystems using commuting pairs in a monoid

Crytographic system and process and its application

Cyclotomic polynomial construction of discrete logarithm...

Data access verification system

Data acquisition device

Data authentication using modification detection codes based on

Data carrier-controlled terminal in a data exchange system

Data cipher processors

Data communication method and apparatus using neural-networks

Data communication system

Data communication system and method with data scrambling

Data communication systems and methods

Data communications equipment security device using calling part

Data copyright management system

Data coypright management method