Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 9 - Arrangements for secret or secure communication
Patents for H04L 9 - Arrangements for secret or secure communication (111,914)
07/1997
07/23/1997EP0785517A2 Electronic-monetary system
07/23/1997EP0785516A2 Eelctronic-monetary system
07/23/1997EP0785515A2 Electronic-monetary system
07/23/1997EP0784905A1 Communications system
07/23/1997EP0784891A1 Data securing process in a telecommunications system
07/23/1997EP0750821A4 Data decryption apparatus in a subscription television signal receiving system
07/23/1997EP0639287B1 Secure entry system with radio communication
07/23/1997CN1155196A High-privacy data enciphering and unclassificating
07/22/1997US5651069 Software-efficient message authentication
07/22/1997US5651068 International cryptography framework
07/22/1997US5651066 Cipher key distribution system effectively preventing illegitimate use and charging of enciphered information
07/19/1997CA2195388A1 Rotocol for routing locally the incoming calls in a switched telephone network which is part of a cellular network
07/17/1997WO1997025801A1 Secure anonymous information exchange in a network
07/17/1997WO1997025800A1 Method for secure data transmission between remote stations
07/17/1997WO1997025799A1 Method and apparatus for inter-round mixing in iterated block substitution systems
07/17/1997WO1997025798A1 System for controlling access and distribution of digital property
07/17/1997DE19601390A1 Mikrochip mit einem diesen ganz oder teilweise umgebenden lichtundurchlässigen Ummantelungsabschnitt Microchip with a surrounding wholly or partially opaque shroud portion
07/16/1997EP0784392A2 Key distribution for communication network
07/16/1997EP0784282A2 Electronic-monetary system
07/16/1997EP0784256A1 Method and apparatus for public-key cryptography using a secure semiconductor device
07/16/1997EP0720796B1 System and method for changing the key or password in a secure distributed communications network
07/16/1997CN1154771A Method and apparatus for the verification of data sequences
07/16/1997CN1154516A Secure network protocol system and method
07/15/1997US5649014 Pseudorandom composition-based cryptographic authentication process
07/10/1997WO1997024833A2 Ideal electronic negotiations
07/10/1997WO1997024832A1 Method and apparatus for providing conditional access in connection-oriented, interactive networks with a multiplicity of service providers
07/10/1997WO1997024831A1 Multiple cryptographic key distribution
07/10/1997CA2237293A1 Method and apparatus for providing conditional access in connection-oriented, interactive networks with a multiplicity of service providers
07/09/1997EP0783215A1 Optical transmission system using encryption based on deterministic chaos
07/09/1997EP0782807A1 Smart-card based access control system with improved security
07/09/1997CN1153949A Process for loading protected storage zone of information processing device and associated device
07/08/1997US5647001 Nonlinear dynamic substitution devices and methods for block substitutions employing coset decompositions and direct geometric generation
07/08/1997US5647000 Failsafe key escrow system
07/08/1997US5646999 Data coypright management method
07/08/1997US5646998 Secure transaction system and method utilized therein
07/08/1997US5646997 Method and apparatus for embedding authentication information within digital data
07/08/1997US5646996 Automatic resynchronization of transmitter in the event of corrupted memory
07/08/1997US5646994 Method and apparatus for recording sensor data
07/03/1997WO1997023972A1 Application level security system and method
07/02/1997EP0782322A2 Method of and apparatus for embedding data into an electronic document
07/02/1997EP0782296A2 Securing transmission and receipt of electronic data
07/02/1997EP0782069A1 Pseudorandom number generator
07/02/1997EP0524253B1 System to prevent a scrambler from generating undesired symbols
07/02/1997CN1153582A Method for securely using digital signatures in commercial cryptographic system
07/02/1997CN1153581A Data decryption apparatus in subscription television signal receiving system
07/01/1997US5643086 Electronic casino gaming apparatus with improved play capacity, authentication and security
06/1997
06/26/1997WO1997023074A1 Tame automorphism public key system
06/26/1997WO1997019519A3 Telecommunications system
06/26/1997CA2193196A1 Pseudorandom number generator
06/25/1997EP0781069A1 Apparatus for encryption and decryption of data transported by ATM cells
06/25/1997EP0781065A2 Method for securing the usage of a terminal of a cellular radio communication system, terminal and user-card therefor
06/25/1997EP0781004A2 Message authorization system for authorizing message for electronic document
06/25/1997EP0781003A2 Generation of cryptographic signatures using hash keys
06/25/1997EP0780040A2 Biometric controlled key generation
06/25/1997EP0780039A1 Roving software license for a hardware agent
06/25/1997EP0779991A2 Wireless telephone distribution system with time and space diversity transmission
06/25/1997CN1152968A Authentication technique
06/24/1997US5642420 Cryptoinformation repeater, subscriber terminal connected thereto, and cryptocommunication method
06/24/1997US5642401 System and method of authenticating a service request in a mobile communication system
06/23/1997CA2184946A1 Generation of cryptographic signatures using hash keys
06/22/1997CA2193712A1 Process to allow secure use of a cellular radio system terminal and the corresponding user terminal and card
06/19/1997WO1997022192A1 Constructing symmetric ciphers using the cast design procedure
06/19/1997WO1997022191A1 Electronic transfer system and method
06/19/1997WO1996027155A3 Systems and methods for secure transaction management and electronic rights protection
06/19/1997DE19652294A1 Elektronisches Übertragungssystem und Verfahren Electronic transmission system and method
06/19/1997CA2193249A1 Encryption device and device for decrypting informations carried by asynchronous transfer mode cells
06/18/1997EP0779738A2 Communication apparatus and communication method
06/18/1997EP0779003A1 User authentication in a communications network
06/17/1997US5640455 Secret-key enciphering method and arrangement therefor capable of preventing unfair acquirement of information
06/17/1997US5640454 System and method for access field verification
06/17/1997US5640393 Multiple address security architecture
06/11/1997EP0778706A2 Scrambling and descrambling of data with improved security
06/11/1997EP0778512A2 System and method for managing try-and-buy usage of application programs
06/11/1997EP0777890A1 Method and apparatus for providing identification
06/11/1997EP0711480B1 Method and system for authenticated secure key distribution in a communication system
06/10/1997US5638512 Ring network security system with encoding of data entering a subnetwork and decoding of data leaving the subnet work
06/10/1997US5638447 Compact digital signatures
06/10/1997US5638446 Method for the secure distribution of electronic files in a distributed environment
06/10/1997US5638445 Blind encryption
06/10/1997US5638444 Secure computer communication method and system
06/10/1997US5638443 System for controlling the distribution and use of composite digital works
06/05/1997WO1997020411A1 Certificate revocation system
06/05/1997WO1997020266A1 An improved pseudo-random generator
06/05/1997DE19618098C1 Random bit sequence generation circuit
06/04/1997EP0777356A2 Arrangement for encryptyed data transmission between two different systems
06/04/1997EP0776558A1 Quantum cryptography
06/04/1997EP0776555A1 Multiple access coding using bent sequences for mobile radio communications
06/04/1997EP0636259B1 Cryptographic data security in a secured computer system
06/03/1997US5636280 Dual key reflexive encryption security system
05/1997
05/29/1997WO1997019537A1 Remote-auditing of computer generated outcomes using cryptographic and other protocols
05/29/1997WO1997019519A2 Telecommunications system
05/28/1997EP0776112A2 Secure network protocol system and method
05/28/1997EP0775918A2 Transmission-reception system
05/28/1997EP0775401A1 System and method for key escrow and data escrow encryption
05/28/1997EP0775398A2 Digital radio with vocoding encrypting codec
05/28/1997EP0672273A4 Method and apparatus for encryption having a feedback register with selectable taps.
05/28/1997CN1150737A Copy prevention method and apparatus for digital video system
05/28/1997CN1150726A Process for pledging data for secure data exchange protocol
05/27/1997US5634012 System for controlling the distribution and use of digital works having a fee reporting mechanism
05/27/1997US5633933 Method and apparatus for a key-management scheme for internet protocols
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