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)
12/1998
12/15/1998US5850444 Method and apparatus for encrypting radio traffic in a telecommunications network
12/15/1998US5850443 Key management system for mixed-trust environments
12/15/1998US5850441 System and method for key distribution using quantum cryptography
12/13/1998CA2239994A1 Method for the secure display during transmission of data or data files between users
12/10/1998WO1998056180A1 Global conditional access system for broadcast services
12/10/1998WO1998056179A1 Conditional access system for set-top boxes
12/10/1998WO1998056139A1 A process for transmitting confidential communications by telephone and electronic devices for carrying out said transmission
12/10/1998WO1998056129A1 System and method for processing transaction messages
12/10/1998WO1998055930A1 Authentication system
12/10/1998WO1998055717A1 Improved secure self learning system
12/10/1998WO1998047259A3 File encryption method and system
12/10/1998WO1998045989A3 Arrangement for extending service support in a communication system
12/10/1998WO1998045988A3 Arrangement for improving availability of services in a communication system
12/10/1998WO1998045982A3 Arrangement for improving security in a communication system supporting user mobility
12/10/1998WO1998034202A3 Data card verification system
12/10/1998DE19724072A1 Vorrichtung zur Durchführung eines Blockchiffrierverfahrens Device for implementing a Blockchiffrierverfahrens
12/10/1998CA2331339A1 Electronic transaction system and method therefor
12/10/1998CA2290991A1 System and method for processing transaction messages
12/09/1998EP0883318A1 User authentication for roaming between mobile telecommunications networks
12/09/1998EP0882340A1 Use of an encryption server for encrypting messages
12/09/1998EP0882339A1 Electronic casino gaming system with improved play capacity, authentication and security
12/09/1998EP0719369B1 Apparatus for remote implementation of a command
12/09/1998CN1201573A Secured gateway interface
12/09/1998CN1201570A Encryption key management
12/09/1998CN1201301A Radio data-transmission equipment
12/08/1998US5848162 Data acquiring apparatus
12/08/1998US5848159 Public key cryptographic apparatus and method
12/08/1998US5848158 Data copyright management system
12/08/1998US5848156 Communication method and apparatus for carrying out cipher communications telephonically
12/03/1998WO1998054869A2 Method and apparatus for providing security in a star network connection using public key cryptography
12/03/1998WO1998054864A2 Auto-recoverable auto-certifiable cryptosystems
12/03/1998WO1998054687A1 Cipher processor, ic card and cipher processing method
12/03/1998WO1998054634A1 Method and apparatus for providing secure time stamps for documents and computer files
12/03/1998WO1998054633A1 Method and apparatus for signing and sealing objects
12/03/1998CA2291760A1 Method and apparatus for providing security in a star network connection using public key cryptography
12/03/1998CA2290952A1 Auto-recoverable auto-certifiable cryptosystems
12/03/1998CA2290365A1 Method and apparatus for providing secure time stamps for documents and computer files
12/02/1998EP0881824A2 Electronic mail-capable communication terminal device and password changing method
12/02/1998EP0881600A2 Synchronization of cryptographic keys between two modules of a distributed system
12/02/1998EP0881559A1 Computer system for protecting software and a method for protecting software
12/02/1998EP0881558A1 Computer system for protecting software and a method for protecting software
12/02/1998EP0881557A1 Computer system for protecting software and a method for protecting software
12/02/1998EP0880841A1 Reception apparatus for authenticated access to coded broadcast signals
12/02/1998EP0880840A1 System for controlling access and distribution of digital property
12/02/1998EP0880839A1 System for authenticating the location of remote users
12/02/1998EP0880759A1 Method for server-authorised service access from portable electronic microcircuit devices such as smart cards
12/02/1998CN1200853A Apparatus and method for authenticating the dispatch and contents of documents
12/02/1998CN1200852A Method for adaptively switching between PCS authentication schemes
12/02/1998CN1200511A Means for protecting digital works' copy-right information by selecting suitable program from multiple secret code tech. utilization program
12/01/1998US5845068 Multilevel security port methods, apparatuses, and computer program products
12/01/1998US5844988 Method and apparatus for scrambling and descrambling of video signal with edge fill
12/01/1998US5844925 For transforming an n-bit value into a transformed n-bit output value
12/01/1998US5844885 Method and apparatus of providing bit count integrity and synchronous data transfer over a channel which does not preserve synchronization
11/1998
11/26/1998WO1998053635A2 Device for monitoring a connection setup
11/26/1998WO1998053628A1 Remote clearing of access to telecommunication service
11/26/1998WO1998053385A1 System and method for using a second resource to store a data element from a first resource in a first-in last-out stack
11/26/1998WO1998032306A3 Method and apparatus for providing authentication security in a wireless communication system
11/25/1998EP0880134A2 Information adding/extracting method, information adding/extracting system, information signal processor and information signal recording medium
11/25/1998EP0880115A2 Encryption communication system for generating passwords on the basis of start information on both parties of communications
11/25/1998EP0722640B1 Cryptographic receiver
11/25/1998EP0717895B1 Key distribution in a multiple access network using quantum cryptography
11/25/1998CN1199969A Data code secret system and method
11/25/1998CN1199892A Encryption communication system for generating passwords on basis of start information on both parties of communication
11/24/1998US5841873 In a data communications system
11/24/1998US5841872 Encryption enhancement system
11/24/1998US5841870 Dynamic classes of service for an international cryptography framework
11/24/1998US5841869 Method and apparatus for trusted processing
11/24/1998US5841865 Enhanced cryptographic system and method with key escrow feature
11/24/1998US5841864 Apparatus and method for authentication and session key exchange in a communication system
11/24/1998US5841863 Method and apparatus for scrambling and descrambling of video signals with edge fill
11/24/1998CA2140803C Method of authenticating a terminal in a transaction execution system
11/24/1998CA2134410C Symmetric cryptographic system for data encryption
11/22/1998CA2237975A1 Information adding/extracting method, information adding/extracting system, information signal processor and information signal recording medium
11/21/1998CA2235796A1 Process for allowing direct encrypted communication between two terminals of a mobile radio network and groupings of stations and terminals involved
11/19/1998WO1998052319A1 Improved method and apparatus for protecting public key schemes from timing and fault attacks
11/19/1998WO1998052317A1 Identification and security using biometric measurements
11/19/1998WO1998052316A1 Initial secret key establishment including facilities for verification of identity
11/19/1998WO1998052163A2 Ic card transportation key set
11/19/1998WO1998052162A2 Secure multiple application card system and process
11/19/1998WO1998052161A2 Key transformation unit for an ic card
11/19/1998WO1998052115A1 Generalized user identification and authentication system
11/19/1998DE19720719A1 Verbindungsaufbau-Überwachungsvorrichtung Connection monitoring apparatus
11/19/1998DE19718827A1 Verfahren und Vorrichtung zum Authentisieren von Mobilfunkteilnehmern Method and apparatus for authentication of mobile subscribers
11/19/1998DE19716861A1 Verschlüsselungsverfahren und -vorrichtung Encryption method and apparatus
11/18/1998EP0878934A1 Public key identification method using two hash functions
11/18/1998EP0878796A2 Information recording apparatus, information reproducing apparatus, and information distribution system
11/18/1998EP0878753A2 Data content dealing system
11/18/1998EP0878088A2 System for processing a video signal via series-connected high speed signal processing smart cards
11/18/1998EP0878082A2 System and method for interfacing multiple electronic devices
11/18/1998CN1199294A Electronic post system
11/18/1998CN1199210A High safety secret key transmission mode
11/17/1998US5838913 Control message transmission in telecommunications systems
11/17/1998US5838797 Secure communication by encryption/decryption of vector at PSK modulation/detection stage
11/17/1998US5838796 Method of encryption to be performed by a computer
11/17/1998US5838795 Method and apparatus for statistical diffusion in iterated block substitution
11/17/1998US5838794 Method of encryption to be performed by a computer
11/17/1998US5838792 Computer system for centralized session key distribution, privacy enhanced messaging and information distribution using a split private key public cryptosystem
11/17/1998US5838791 Encoder and decoder
11/17/1998US5838254 Transmission-reception time correction system
11/17/1998CA2148105C Method and apparatus for authentication of client server communication
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