H04L 9 - Arrangements for secret or secure communication

Patents for H04L 9 - Arrangements for secret or secure communication (111,914)
11/1997
11/05/1997	EP0804839A1 Establishment of cryptographic keys in radio networks
11/05/1997	EP0804758A1 Elliptic curve encryption systems
11/05/1997	CN1164307A Method and apparatus for secure identification of mobile user in communication network
11/04/1997	US5684876 Communication system
10/1997
10/30/1997	WO1997040603A2 Process and device for recording/processing authentic audio data
10/30/1997	WO1997040496A1 Method and device for recording/ processing of authentic image and/or audio data
10/30/1997	WO1997028630A3 System and method for interfacing multiple electronic devices
10/30/1997	DE19716849A1 Secure data transmission method e.g. for remote control of vehicle door locks
10/29/1997	EP0804003A2 Digital signature method and communication system
10/29/1997	EP0803827A2 Electronic-monetary system
10/29/1997	EP0803790A1 Method of concealing a secret code in a computer authentication device
10/29/1997	EP0803153A1 Private signature and proof systems
10/29/1997	EP0803087A1 Method for secure data transfer on a multi-server network
10/28/1997	US5682430 Secure anonymous message transfer and voting scheme
10/28/1997	US5682425 Information signal transmission system
10/28/1997	US5682195 Digital cable headend for cable television delivery system
10/23/1997	WO1997039553A1 An authentication system based on periodic challenge/response protocol
10/23/1997	WO1997039552A1 An apparatus and method for re-encrypting data
10/23/1997	WO1997039408A1 Data file authentication device
10/23/1997	WO1997039238A1 Engine start controlling apparatus
10/23/1997	DE19615302A1 Verfahren und Vorrichtung zum Aufzeichnen/Verarbeiten von authentischen Tondaten Method and apparatus for recording / processing sound data of authentic
10/23/1997	DE19615301A1 Verfahren und Vorrichtung zum Aufzeichnen/Verarbeiten von authentischen Bild- und/oder Tondaten Method and apparatus for recording / processing authentic image and / or sound data
10/22/1997	EP0802654A2 Enciphering method, deciphering method and certifying method
10/22/1997	EP0802653A2 Multi-cycle non-parallel data encryption engine
10/22/1997	EP0802652A2 Data encryptor having a scalable clock
10/22/1997	EP0802474A2 Accounting device, communicating apparatus, and communication system
10/22/1997	CN1163030A Digital radio with vocoding encrypting coder
10/21/1997	US5680462 Information encoder/decoder using chaotic systems
10/21/1997	US5680461 Computer network
10/21/1997	US5680460 Biometric controlled key generation
10/21/1997	US5680458 Root key compromise recovery
10/21/1997	US5680456 Method of manufacturing generic meters in a key management system
10/21/1997	US5680455 Digital signature generator /verifier/ recorder (DS-GVR) for analog transmissions
10/16/1997	WO1997038530A1 Method for providing a secure communication between two devices and application of this method
10/16/1997	WO1997038508A1 Method and apparatus for secure measurement certification
10/16/1997	CA2640992A1 Digital signatures on a smartcard
10/15/1997	EP0801480A1 Identification and/or signature method
10/15/1997	EP0801479A1 Data network security system and method
10/15/1997	EP0801478A2 Cryptographic key recovery system
10/15/1997	EP0801477A1 Method and apparatus for blockwise encryption with each encryption round controlled by an internal state
10/15/1997	EP0800745A1 Time-shifted conditional access
10/15/1997	EP0800691A1 Method for implementing a private key communication protocol between two processing devices
10/14/1997	US5677956 Method and apparatus for data encryption/decryption using cellular automata transform
10/14/1997	US5677955 Electronic funds transfer instruments
10/14/1997	US5677954 Cryptical control method for personal communication
10/14/1997	US5677953 System and method for access control for portable data storage media
10/14/1997	US5677952 Method to protect information on a computer storage device
10/09/1997	WO1997037461A1 Transmitting messages over a network
10/08/1997	EP0800327A2 A customer telecommunication interface device having a unique identifier
10/08/1997	EP0800293A2 Circuit and method for generating cryptographic keys
10/08/1997	EP0800209A1 Safety device for a semi-conductor chip
10/08/1997	EP0799543A2 Unified messaging and long distance communication system
10/08/1997	EP0799538A1 Scrambled information transmitting and receiving
10/07/1997	US5675653 Cryptographic communications system
10/07/1997	US5675652 Computer readable device implementing a software-efficient pseudorandom function encryption
10/07/1997	US5675649 Process for cryptographic key generation and safekeeping
10/07/1997	US5675648 System and method for key distribution using quantum cryptography
10/07/1997	US5675622 Method and apparatus for electronic encoding and decoding
10/02/1997	WO1997036426A1 Method and apparatus for in-camera encryption
10/02/1997	WO1997036264A1 Function access control system with encryption using a plurality of dynamic variables
10/02/1997	WO1997036263A1 Function access control system comprising a clock synchronisation device
10/02/1997	DE19632239A1 Communications network intruder identification method
10/02/1997	CA2249463A1 System for controlling access to a function, using a plurality of dynamic encryption variables
10/02/1997	CA2249462A1 System for controlling access to a function having clock synchronization
10/01/1997	EP0798892A2 Creation and distribution of digital documents
10/01/1997	EP0798891A2 Identification number issuing device and identification number verification device
10/01/1997	EP0798657A2 Virtual shop computer network system which displays member shops and member shop certification method
10/01/1997	CN1160956A Identification number issuing device and identification number verification device
09/1997
09/30/1997	US5673373 Image forming system with security function
09/30/1997	US5673319 Block cipher mode of operation for secure, length-preserving encryption
09/30/1997	US5673318 Method and apparatus for data authentication in a data communication environment
09/30/1997	US5673316 Creation and distribution of cryptographic envelope
09/25/1997	WO1997035431A1 Secure data broadcasting
09/25/1997	WO1997035403A2 Method and apparatus for secure document timestamping
09/25/1997	WO1997035388A1 Controlling correlated quantum state probability distributions
09/25/1997	WO1997035282A1 Data-transmission device, consisting of a pulse generator and a monitoring unit, for use in vehicle, and pulse generator for use with the monitoring unit
09/25/1997	CA2258754A1 Controlling correlated quantum state probability distributions
09/25/1997	CA2243214A1 Secure data broadcasting
09/24/1997	EP0797329A1 Method for establishing secure communications, and corresponding encrypting/decrypting system
09/24/1997	CN1160317A Communication device and method
09/23/1997	US5671285 Secure communication system
09/23/1997	US5671284 Data encryptor having a scalable clock
09/23/1997	US5671283 Secure communication system with cross linked cryptographic codes
09/23/1997	US5671280 System and method for commercial payments using trusted agents
09/23/1997	US5671276 Method and apparatus for impulse purchasing of packaged information services
09/23/1997	CA2087841C Secure over-the-air registration of cordless telephones
09/23/1997	CA2073784C Secret communication apparatus
09/18/1997	WO1997034279A1 Data transmitter, data transmission method, data receiver, data receiving method, data transfer device, and data transfer method
09/18/1997	WO1997026727A3 Microchip partly or entirely surrounded by opaque sheathing
09/18/1997	DE19610161A1 Datenübertragungsvorrichtung in einem Fahrzeug, bestehend aus einem Impulsgeber und einem Kontrollgerät, sowie Impulsgeber für das Kontrollgerät Data transmission device in a vehicle consisting of a pulse generator and a control device, as well as inspiration for the recording equipment
09/17/1997	EP0795979A2 Method and system for indicating the moment of performing a cryptographic process
09/17/1997	EP0795241A1 Public key cryptography process based on the discrete logarithm
09/17/1997	EP0795240A1 Message protection system and method
09/17/1997	CN1159872A Multiple access coding using bent sequences for mobile radio communication
09/17/1997	CN1159711A Method and equipment for video signal ciphering and deciphering
09/17/1997	CN1159710A Method and equipment for video signal ciphering and deciphering
09/17/1997	CN1159709A Method and equipment for video signal ciphering and deciphering
09/17/1997	CN1159708A Method and equipment for video signal ciphering and deciphering
09/17/1997	CN1159707A Method and equipment for video signal ciphering and deciphering
09/17/1997	CN1159706A Method and apparatus for scrambling and descrambling of video signals

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