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)
11/1999
11/23/1999US5991400 Time-shifted conditional access
11/23/1999US5990927 Advanced set top terminal for cable television delivery systems
11/18/1999WO1999059361A1 Method and apparatus for supporting expanded electronic serial number (eesn) format
11/18/1999WO1999059287A1 Method for secure distribution of data
11/18/1999WO1999059286A1 Private key validity and validation
11/18/1999WO1999059108A1 Method for carrying out a secure transaction using a smart card via a telecommunication network
11/18/1999WO1999059092A1 Apparatus for data distribution, and terminal for data distribution
11/18/1999WO1999058987A1 Method for transmitting and storing value and value store electric power meter using the same
11/18/1999CA2332436A1 Method for carrying out a secure transaction using a smart card via a telecommunication network
11/18/1999CA2332113A1 Method for transmitting and storing value and value store electric power meter using the same
11/18/1999CA2331821A1 Method and apparatus for supporting expanded electronic serial number (eesn) format
11/17/1999EP0957606A2 Encrypted data transmission over satellite links
11/17/1999EP0956728A2 Method and apparatus for providing authentication security in a wireless communication system
11/17/1999EP0956678A1 Method and device for introducing a service key into a terminal
11/17/1999EP0956677A1 Method and apparatus for secure measurement certification
11/17/1999EP0956673A1 Method and system for processing electronic documents
11/17/1999EP0824815A4 Positive identification system and method
11/17/1999EP0676109A4 Method of extending the validity of a cryptographic certificate.
11/17/1999EP0541727B1 Method for secure time-stamping of digital documents
11/17/1999CN1235743A System for preventing electronic memory tampering
11/17/1999CN1235453A Network controller and method of establishing logical connection in synchronous digital communications network
11/17/1999CN1235448A Centralized certificate management system for two-way interactive communication devices in data networks
11/17/1999CN1235446A Elliptical curve converting device and device and system for use thereof
11/16/1999US5987609 System for remotely securing/locking a stolen wireless device via an Email message
11/16/1999US5987572 Method and apparatus employing a dynamic encryption interface between a processor and a memory
11/16/1999US5987140 System, method and article of manufacture for secure network electronic payment and credit collection
11/16/1999US5987139 Method for encryption of information
11/16/1999US5987138 Identification and/or signature process
11/16/1999US5987137 Method for the encryption of data transfer
11/16/1999US5987134 Device and method for authenticating user's access rights to resources
11/16/1999US5987133 Electronic authentication system
11/16/1999US5987131 Cryptographic key exchange using pre-computation
11/16/1999US5987130 Simiplified secure swift cryptographic key exchange
11/16/1999US5987129 Method of sharing cryptokey
11/16/1999US5987128 Method of effecting communications using common cryptokey
11/16/1999US5987125 Method for communicating seismic data
11/16/1999US5987124 Method and apparatus for encrypting long blocks using a short-block encryption procedure
11/16/1999US5987123 Secure file system
11/16/1999CA2169746C Method for key distribution using quantum cryptography
11/11/1999WO1999057847A1 System and method for electronic transmission, storage and retrieval of authenticated documents
11/11/1999WO1999057846A1 User authentication using a virtual private key
11/11/1999WO1999057845A1 Randomization-encryption system
11/11/1999WO1999057844A1 Authenticated key agreement protocol
11/11/1999WO1999057843A1 A method and apparatus for preventing the fraudulent use of a cellular telephone
11/11/1999WO1999057835A1 A cryptographic system and method for electronic transactions
11/11/1999WO1999057689A1 Method for authenticating a chip card in a message transmission network
11/11/1999DE19820605A1 Method for secure distribution of software
11/11/1999DE19820422A1 Verfahren zur Authentisierung einer Chipkarte innerhalb eines Nachrichtenübertragungs-Netzwerks A method of authenticating a smart card within a message transmission network
11/11/1999CA2330958A1 User authentication using a virtual private key
11/10/1999EP0955783A2 Method and apparatus for performing authentication for roaming between different mobile communication systems
11/10/1999EP0955755A2 Layer 2 integrated access scheme
11/10/1999EP0955745A2 Fair exchange of digital signatures in communications network
11/10/1999EP0954822A1 Method of checking the authenticity of an electric circuit arrangement
11/10/1999EP0954809A1 A digital trust center for medical image authentication
11/10/1999EP0954666A1 Control device for an authorization system
11/10/1999CN1234662A Enciphered ignition treatment method and apparatus thereof
11/10/1999CN1234574A Integrated circuit and smart card comprising such circuit
11/09/1999US5983252 Pseudo-random number generator capable of efficiently exploiting processors having instruction-level parallelism and the use thereof for encryption
11/09/1999US5982898 Certification process
11/09/1999US5982893 System and method for processing transaction messages
11/09/1999US5982892 System and method for remote authorization for unlocking electronic data
11/09/1999US5982891 Systems and methods for secure transaction management and electronic rights protection
11/09/1999US5982889 Method and apparatus for distributing information products
11/09/1999US5982506 Method and system for electronic document certification
11/09/1999US5982292 Method of and system for entering identification codes into vehicle antitheft system
11/04/1999WO1999056494A1 Management of authentication and encryption user information in digital user terminals
11/04/1999WO1999056430A1 Efficient, secure multicasting with minimal knowledge
11/04/1999WO1999056429A1 Personal identification system and method
11/04/1999WO1999056428A1 Apparatus and method of reading a program into a processor
11/04/1999WO1999055991A2 Authentication method
11/03/1999EP0954135A2 Cryptographic Processing apparatus, cryptographic processing method and storage medium storing cryptographic processing program for realizing high-speed cryptographic processing without impairing security
11/03/1999EP0953244A1 Constructing symmetric ciphers using the cast design procedure
11/03/1999EP0953243A2 A method and apparatus for a robust high-speed cryptosystem
11/03/1999CN1233899A Simplified data link
11/02/1999US5978959 Method and devices for the transmission of data with transmission error checking
11/02/1999US5978668 Radio communication apparatus
11/02/1999US5978483 Securely encrypted remote keyless entry system
11/02/1999US5978482 Method and system for protection of digital information
11/02/1999US5978479 Descrambler
11/02/1999US5978478 Terminal adapter
11/02/1999CA2168851C System and method for quantum cryptography
10/1999
10/29/1999CA2270694A1 Method and apparatus for securing data transmissions
10/28/1999WO1999055089A1 Multimedia adaptive scrambling system (mass)
10/28/1999WO1999055039A1 Cryptographic technique for providing fast encryption and decryption and for producing a message authentication code
10/28/1999WO1999055037A1 Process for transmitting, receiving and/or storing information
10/28/1999WO1999034552A9 Cryptographic system and method with fast decryption
10/28/1999WO1999025086A3 Generation of a seed number
10/28/1999WO1999015988A3 Secure server architecture for web based data management
10/28/1999CA2329315A1 Multimedia adaptive scrambling system (mass)
10/28/1999CA2329179A1 Process for transmitting, receiving and/or storing information
10/27/1999EP0952728A2 Method and apparatus for watermarking data sets
10/27/1999EP0952718A2 Efficient, secure multicasting with minimal knowledge
10/27/1999EP0952697A2 Elliptic curve encryption method and system
10/27/1999EP0952562A2 System and method for commercial payments using trusted agents
10/27/1999EP0952511A2 Method and system for providing data security and protection against unauthorised telephonic access
10/27/1999EP0951767A2 Improved network security device
10/27/1999CN1233120A Method of transferring information between subscriber identification module and radiocommunication mobile terminal, and corresponding subscriber identification module and mobile terminal
10/26/1999US5974550 Method for strongly authenticating another process in a different address space
10/26/1999US5974250 System and method for secure information transmission over a network
10/26/1999US5974151 Public key cryptographic system having differential security levels
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