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)
08/2003
08/14/2003CA2475489A1 Secure electronic messaging system requiring key retrieval for deriving decryption keys
08/14/2003CA2475150A1 System and method for providing key management protocol with client verification of authorization
08/13/2003EP1335595A1 Method and apparatus for controlling copying of a video or audio signal using watermarks
08/13/2003EP1335574A1 Information transmitting/receiving system, information transmitting/receiving method, and handwritten information compressing method used for them
08/13/2003EP1335563A2 Method for securing communication over a network medium
08/13/2003EP1335513A1 Method for transferring encrypted information
08/13/2003EP1335363A2 Valid medium management system
08/13/2003EP1335266A1 Distribution and management process and system for mobile terminals for use rights associated with a purchased content.
08/13/2003EP1335264A1 System for controlling the distribution and use of digital works utilizing a usage rights grammar
08/13/2003EP1335263A1 System for controlling the distribution and use of composite digital works
08/13/2003EP1335262A1 System for controlling the distribution and use of composite digital works
08/13/2003EP1335261A1 System for controlling the distribution and use of composite digital works
08/13/2003EP1335260A1 System for controlling the distribution and use of composite digital works
08/13/2003EP1334601A2 Data scrambling system for a shared transmission medium
08/13/2003EP1334583A2 Enforcement of content rights and conditions for multimedia content
08/13/2003EP1334578A2 Wireless clock synchronization
08/13/2003EP1224636B1 Method for secure electronic transaction and corresponding system
08/13/2003EP1151608B1 Method and apparatus for encrypted transmission
08/13/2003EP1121780A4 Apparatus and methods for managing key material in heterogeneous cryptographic assets
08/13/2003EP1119942B1 Method for establishing a common cryptographic key for n subscribers
08/13/2003EP0968465B1 Television or radio control system development for mpeg
08/13/2003EP0923825A4 Method and system for establishing and maintaining user-controlled anonymous communications
08/13/2003EP0917781A4 Simultaneous electronic transactions with visible trusted parties
08/13/2003EP0829150B1 Cdma transmission employing clipping function
08/13/2003CN2566363Y Intelligent card module multiplier structure for VLSI
08/13/2003CN1436057A Method for identifying person among population by sesing his fingerprints
08/13/2003CN1436007A Method and system for inquiry of user identification in mobile communication system
08/13/2003CN1435985A Dynamic cipher safety system and dynamic cipher generating method
08/13/2003CN1435762A Device and method for preventing digital medium for infringing and pirating
08/13/2003CN1118197C Method for selecting and merging digilized program, merger and digital cable headend
08/13/2003CN1118171C Random selection system and method for access repeater of virtual private network
08/13/2003CN1118162C Method and system for protecting information term transferred from secret unit to decoder
08/12/2003US6606708 Secure server architecture for Web based data management
08/12/2003US6606707 Semiconductor memory card
08/12/2003US6606663 Method and apparatus for caching credentials in proxy servers for wireless user agents
08/12/2003US6606386 Cryptographic key split combiner
08/12/2003US6606385 Data encrypting/decrypting conversion methods and apparatuses and data communication system adopting the same
08/12/2003US6606024 Electronic authentication method and system therefor
08/07/2003WO2003065724A1 Decoding and decryption of partially encrypted information
08/07/2003WO2003065723A2 Watermark-based access control method and device
08/07/2003WO2003065643A2 Method and apparatus for secure key management using multi-threshold secret sharing
08/07/2003WO2003065642A1 Streaming system for delivering encrypted data, and streaming method thereof
08/07/2003WO2003065641A1 System and method for performing mutual authentications between security tokens
08/07/2003WO2003065640A1 Single sign-on over the internet using public-key cryptography
08/07/2003WO2003065639A2 System and method of hiding cryptographic private keys
08/07/2003WO2003065629A2 Super des
08/07/2003WO2003065365A1 Reproduction control method, program, and recording medium
08/07/2003WO2003065363A1 Recording medium, recording method and apparatus, reproduction method and apparatus, data transmission method, and data demodulation method
08/07/2003WO2003065319A1 Update management for encoded data in memory
08/07/2003WO2003065226A1 Document authentication and verification
08/07/2003WO2003065172A2 Framework for maintaining information security in computer networks
08/07/2003WO2003065169A2 Access system utilizing multiple factor identification and authentication
08/07/2003WO2003065117A1 Entanglement photon pair generator
08/07/2003WO2002027631A8 A universal and interoperable system and method utilizing a universal cardholder authentication field (ucaf) for authentication data collection and validation
08/07/2003WO2001093002A3 Method of decrypting data stored on a storage device using an embedded encryption/decryption means
08/07/2003US20030149899 System and method for network address translation integration with IP security
08/07/2003US20030149890 Content distribution/protecting method and apparatus
08/07/2003US20030149886 Digital content management device and digital content management program
08/07/2003US20030149881 Apparatus and method for securing information transmitted on computer networks
08/07/2003US20030149880 Method and system for providing third party authentication of authorization
08/07/2003US20030149876 Method and system for performing perfectly secure key exchange and authenticated messaging
08/07/2003US20030149874 Systems and methods for authenticating communications in a network medium
08/07/2003US20030149872 Digital certificate verification
08/07/2003US20030149871 System and method for providing key management protocol with client verification of authorization
08/07/2003US20030149869 Method and system for securely storing and trasmitting data by applying a one-time pad
08/07/2003US20030149863 Microprocessor with random number generator and instruction for storing random data
08/07/2003US20030149854 Memory access control system and mangement method using access control ticket
08/07/2003US20030149667 Data management apparatus, storage medium having stored therein data management program, storage medium having stored therein usage certificate data, and method of using data
08/07/2003US20030147536 Secure electronic messaging system requiring key retrieval for deriving decryption keys
08/07/2003US20030147535 Method and apparatus for secure key management using multi-threshold secret sharing
08/07/2003US20030147534 Method and apparatus for in-vehicle device authentication and secure data delivery in a distributed vehicle network
08/07/2003US20030147532 Hybrid network encrypt/decrypt scheme
08/07/2003US20030147267 Method and apparatus for encrypting data
08/06/2003EP1333674A2 Digital content management device and digital content management program
08/06/2003EP1333642A2 Method and system for integrating performance enhancing functions in a virtual private network (VPN)
08/06/2003EP1333353A2 Information recording/reproducing system being able to limit access to data
08/06/2003EP1332618A2 Method and apparatus for determining digital a/v content distribution terms based on detected piracy levels
08/06/2003EP1332599A2 System and method for securing a non-secure communication channel
08/06/2003EP1332428A1 Method and system for establishing a trusted and decentralized peer-to-peer network
08/06/2003EP1224528A4 Method and system for distributing documents
08/06/2003EP1192751A4 Distributed group key management scheme for secure many-to-many communication
08/06/2003EP0983541B1 Method and apparatus for signing and sealing objects
08/06/2003EP0733239B1 Database system with local information remotely supported with dynamic information
08/06/2003CN1435026A Generation of keyed integer permutations for message authentication codes
08/06/2003CN1434656A Method for system identifying mobile telephone set
08/06/2003CN1434598A Safety All-in-one-card system realized by intelligent card
08/06/2003CN1434597A Method for locking network equipment
08/06/2003CN1434388A Method for information encryption
08/06/2003CN1117463C Method and device for transmitting information data from sender to receiver via transcoder
08/06/2003CN1117362C Method and device for making watermark without clear print
08/05/2003US6604027 Electronic control apparatus for vehicle
08/05/2003US6603857 Method and apparatus for controlling release of time sensitive information
08/05/2003US6603445 Method and apparatus for factoring large numbers with optoelectronic devices
08/05/2003CA2371014A1 Easy and practical mechanism for secure group communication
08/05/2003CA2300023C Automated bill payment system
07/2003
07/31/2003WO2003063413A1 Method for generating and verifying electronic signatures
07/31/2003WO2003063411A1 Two-factor authentication method with a one-time password
07/31/2003WO2003063410A1 Cryptosystem
07/31/2003WO2003063409A2 Method for securing data traffic in a mobile network environment
07/31/2003WO2003063408A1 Device and method for generating a command code for a cryptogram
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