Patents for H04L 9 - Arrangements for secret or secure communication (111,914) |
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02/23/1999 | US5875247 System for decrypting encrypted software |
02/23/1999 | CA2153879C Method for providing mutual authentication of a user and a server on a network |
02/23/1999 | CA2124891C Process for authentifying a portable object by an off-line terminal and portable object and terminal using said process |
02/18/1999 | WO1999008418A1 Digital certificates containing multimedia data extensions |
02/18/1999 | WO1999008415A2 System for generating electronic signatures in absolute security |
02/18/1999 | WO1999008411A2 New operation for key insertion with folding |
02/18/1999 | WO1999008230A2 Method for verifying the authenticity of a data medium |
02/17/1999 | EP0897226A2 Digital audio data transmitting apparatus and method |
02/17/1999 | EP0674824B1 Television program delivery system |
02/17/1999 | EP0673580B1 An operation center for a television program packaging and delivery system |
02/17/1999 | CN1208296A Equipment authenticator for authenticating equipment by means of bundle of plurality of secret keys |
02/17/1999 | CN1208294A Data transmitting apparatus and data transmitting method |
02/17/1999 | CN1208198A Method and apparatus for remotely controlling and monitoring the use of computer software |
02/16/1999 | US5872849 Method for secure communication in a system |
02/16/1999 | US5872848 Method and apparatus for witnessed authentication of electronic documents |
02/16/1999 | US5872846 System and method for providing security in data communication systems |
02/16/1999 | CA2137065C Method of protecting electronically published materials using cryptographic protocols |
02/11/1999 | WO1999007151A1 Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system |
02/11/1999 | WO1999007150A1 Encryption devices for use in a conditional access system |
02/11/1999 | WO1999007149A1 Source authentication of download information in a conditional access system |
02/11/1999 | WO1999007148A1 Authorization of services in a conditional access system |
02/11/1999 | WO1999007147A1 Method and apparatus for geographically limiting service in a conditional access system |
02/11/1999 | WO1999007146A1 Representing entitlements to service in a conditional access system |
02/11/1999 | WO1999007145A1 Verification of the source of program of information in a conditional access system |
02/11/1999 | WO1999007104A1 Data security in multipoint publish/subscribe communications |
02/11/1999 | WO1999007103A1 Methods and apparatus for enhanced cmea employing enhanced transformations |
02/11/1999 | WO1998050875A3 Biometric certificates |
02/11/1999 | WO1998048538A3 Method for secure key management using a biometric |
02/11/1999 | DE19835399A1 ATM cell descrambling circuit |
02/11/1999 | DE19734507A1 Verfahren zur Echtheitsprüfung eines Datenträgers A method for validating a data carrier |
02/11/1999 | CA2616759A1 System and method for globally and securely accessing unified information in a computer network |
02/11/1999 | CA2299505A1 Data security in multipoint publish/subscribe communications |
02/11/1999 | CA2266665A1 Methods and apparatus for enhanced cmea employing enhanced transformations |
02/10/1999 | EP0896453A2 Method for encrypting or decrypting a data stream |
02/10/1999 | EP0896452A2 Data encrypting/decrypting conversion methods and apparatuses and data communication system adopting the same |
02/10/1999 | EP0896451A2 Encryption apparatus and computer-readable recording medium containing program for realizing the same |
02/10/1999 | CN1207533A Method of authorization in data communication systems |
02/10/1999 | CN1207530A Computer system for protecting software and method for protecting software |
02/09/1999 | US5870477 Enciphering/deciphering device and method, and encryption/decryption communication system |
02/09/1999 | US5870476 Process for pledging data for a secure data exchange protocol |
02/09/1999 | US5870475 Facilitating secure communications in a distribution network |
02/09/1999 | US5870473 Electronic transfer system and method |
02/09/1999 | US5870470 Method and apparatus for encrypting long blocks using a short-block encryption procedure |
02/09/1999 | US5870468 Enhanced data privacy for portable computers |
02/09/1999 | US5870354 Data recording and reproducing apparatus capable of detecting an input for controlling an output |
02/09/1999 | US5869821 Credit inquiry service system and method |
02/09/1999 | CA2186368C Methods for providing conditional access information to decoders in a packet-based multiplexed communications system |
02/09/1999 | CA2118644C Personal identification encryptor and method |
02/04/1999 | WO1999005819A1 Document or message security arrangements using a numerical hash function |
02/04/1999 | WO1999005818A1 Split-key cryptographic system and method |
02/04/1999 | WO1999005817A1 Methods and apparatus for enhanced cmea including a cmea iteration preceded and followed by transformations and employing an involuntary lookup |
02/04/1999 | WO1999005816A1 System and method for authenticating signatures |
02/04/1999 | WO1999005814A2 E-mail firewall with stored key encryption/decryption |
02/04/1999 | WO1999005813A2 User authentication applet in a computer network |
02/04/1999 | WO1999005663A1 Method of sharing key |
02/04/1999 | WO1999005628A1 Electronic bill presentment and payment system which deters cheating by employing hashes and digital signatures |
02/04/1999 | WO1998051112A3 Method and device to authenticate subscribers in a mobile radiotelephone systems |
02/04/1999 | CA2266683A1 Methods and apparatus for enhanced cmea including a cmea iteration preceded and followed by transformations and employing an involuntary lookup |
02/03/1999 | EP0894973A1 Engine start controlling apparatus |
02/03/1999 | EP0894379A1 Method and system for hierarchical key access and recovery |
02/03/1999 | EP0894322A1 Method and device for recording/ processing of authentic image and/or audio data |
02/03/1999 | CN1206907A Information reproducing device,identifying device and information process system |
02/02/1999 | US5867776 Receiver for receiving text-based multiplex broadcasts |
02/02/1999 | US5867578 Adaptive multi-step digital signature system and method of operation thereof |
02/02/1999 | US5867577 Method and apparatus for authenticating a data carrier intended to enable a transaction or access to a service or a location, and corresponding carrier |
02/02/1999 | CA2152628C System and method for key distribution using quantum cryptography |
02/02/1999 | CA2139081C Unified messaging system and method |
02/02/1999 | CA2087615C Resynchronization of encryption systems upon handoff |
01/28/1999 | WO1999004587A1 Subscriber system with user station with removable data store |
01/28/1999 | WO1999004583A1 Encrypted broadcast messages in a cellular communications system |
01/28/1999 | WO1999004531A1 Method and apparatus for fast elliptical encryption with direct embedding |
01/28/1999 | WO1999004530A1 File encryption with key recovery |
01/28/1999 | WO1998048389A3 Method for mutual authentication between two units |
01/28/1999 | WO1998047250A3 Apparatus and method for communicating between an intelligent agent and client computer process using disguised messages |
01/28/1999 | CA2297059A1 Method and apparatus for fast elliptical encryption with direct embedding |
01/27/1999 | EP0893895A2 Method for transmitting encrypted signals as well as transmitting and receiving apparatus therefore |
01/27/1999 | EP0893796A2 Information reproducing apparatus, authenticating apparatus, and information processing system |
01/27/1999 | CN1206296A Integrated circuit and method for secure data processing by means of this integrated circuit |
01/27/1999 | CN1206272A Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method |
01/27/1999 | CN1206151A Computer system for protecting software and method for protecting software |
01/26/1999 | US5864829 Network charge method and system |
01/26/1999 | US5864667 Method for safe communications |
01/26/1999 | US5864625 Methods and apparatus for secure optical communications links |
01/26/1999 | US5864491 Apparatus and associated method for generating a pseudo random number |
01/26/1999 | CA2135631C A method for loading and utilizing a key in a secure transmission device |
01/26/1999 | CA2134974C A method for loading encryption keys into secure transmission devices |
01/21/1999 | WO1999003285A2 Method and device for the mutual authentication of components in a network using the challenge-response method |
01/21/1999 | WO1999003246A2 Methods and apparatus for enhanced security expansion of a secret key into a lookup table for improved security for wireless telephone messages |
01/21/1999 | WO1999003079A1 Symmetrically-secured electronic communication system |
01/21/1999 | WO1998047258A3 Bilateral authentication and encryption system |
01/21/1999 | WO1998045980A3 Secure deterministic encryption key generator system and method |
01/21/1999 | CA2258750A1 Methods and apparatus for enhanced security expansion of a secret key into a lookup table for improved security for wireless telephone messages |
01/20/1999 | EP0892521A2 Method and apparatus for long term verification of digital signatures |
01/20/1999 | EP0892520A2 Elliptic curve calculation apparatus capable of calculating multiples at high speed |
01/20/1999 | EP0892519A2 System and method for secure data transmission |
01/20/1999 | EP0891670A1 Method for providing a secure communication between two devices and application of this method |
01/20/1999 | EP0891663A1 Transmitting messages over a network |
01/20/1999 | EP0891661A1 Method and apparatus for data processing |
01/20/1999 | EP0891611A1 Function access control system with encryption using a plurality of dynamic variables |
01/20/1999 | EP0891610A1 Function access control system comprising a clock synchronisation device |