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)
08/1999
08/24/1999US5943615 Method and apparatus for providing authentication security in a wireless communication system
08/24/1999US5943426 Method and apparatus for relaying digitally signed messages
08/24/1999US5943248 w-bit non-linear combiner for pseudo-random number generation
08/24/1999CA2120678C Method for protecting a volatile file using a single hash
08/19/1999WO1999041910A1 Digital av data transmitting unit, digital av data receiving unit, digital av data transmitting/receiving unit, and medium
08/19/1999WO1999041900A1 Secure distribution of digital representations
08/19/1999WO1999041877A2 Method and arrangement for ciphering information transfer
08/19/1999WO1999041876A1 System, method and apparatus for secure transmission of confidential information
08/19/1999WO1999041874A1 Recording of scrambled digital data
08/19/1999DE19736954A1 Computer-aided number sequence mixing method
08/19/1999CA2318879A1 Recording of scrambled digital data
08/18/1999EP0936805A1 Document transfer systems
08/18/1999EP0936776A2 A network system using a threshold secret sharing method
08/18/1999EP0936775A1 Secure data transmission method between two users of two respective transmission devices connected by a data transmission network
08/18/1999EP0936774A1 Recording of scrambled digital data
08/18/1999EP0936765A2 Network management device and method for setting up a logical link in a synchronous digital transmission system
08/18/1999EP0936610A2 Recording apparatus recording medium, playback apparatus, recording method and playback method
08/18/1999EP0935860A1 Signal transmission process
08/18/1999EP0935859A2 Methods and apparatus for enhanced security expansion of a secret key into a lookup table for improved security for wireless telephone messages
08/18/1999EP0935858A1 Method for data decorrelation
08/18/1999CN1226122A Copy management method
08/18/1999CN1226109A Digital multi-changeable enciphering method and device while three control-state combination
08/18/1999CN1226037A Electronic watermark system, electronic information distribution system, and image filing apparatus
08/17/1999US5940799 System and method for securing speech transactions
08/17/1999US5940513 Computer-readable medium
08/17/1999US5940512 Mobile communication system
08/17/1999US5940509 Method and apparatus for controlling country specific frequency allocation
08/17/1999US5940508 Method and apparatus for seamless crypto rekey system
08/17/1999US5940505 Information recording method and apparatus, function recording method and apparatus, and information reproducing method and apparatus
08/17/1999US5940007 Remote control system for motor vehicle related devices
08/17/1999US5940002 Security system with random number remote communication
08/13/1999CA2260354A1 Network controller and method of establishing a logical connection in a synchronous digital communications network
08/12/1999WO1999040719A1 Configuring method and device
08/12/1999WO1999040702A1 Method and apparatus for efficient authentication and integrity checking using hierarchical hashing
08/12/1999WO1999040546A1 Protocol between an electronic key and an lock
08/12/1999WO1999027678A3 Security of data connections
08/12/1999CA2318247A1 Configuring method and device
08/11/1999EP0935393A2 Set top terminal for cable television delivery systems
08/11/1999EP0935382A1 Configuring method and device
08/11/1999EP0935365A1 Procedure to implement security in the CMIP protocol
08/11/1999EP0935221A2 Remote authentication system
08/11/1999EP0673583B1 Advanced set top terminal for cable television delivery systems
08/11/1999CN1225769A Sprial scrambling
08/10/1999US5937069 Communication controller
08/10/1999US5937068 System and method for user authentication employing dynamic encryption variables
08/10/1999US5937067 Apparatus and method for local encryption control of a global transport data stream
08/10/1999US5937066 Two-phase cryptographic key recovery system
08/10/1999US5936541 Method for securing information relevant to a transaction
08/10/1999US5936149 Personal date/time notary device
08/10/1999US5935248 Security level control apparatus and method for a network securing communications between parties without presetting the security level
08/10/1999US5935243 Licensee notification system
08/10/1999CA2165075C A method for validating a communication link
08/10/1999CA2128115C Encryption apparatus, communication system using the same and method therefor
08/05/1999WO1999039537A1 Method and arrangement for establishing an encrypted connection
08/05/1999WO1999039525A1 Method of ciphering data transmission and a cellular radio system employing the method
08/05/1999WO1999039524A1 Procedure and system for the processing of messages in a telecommunication system
08/05/1999WO1999039504A1 Improved conditional access and content security method
08/05/1999WO1999039476A1 Secure one-way authentication communication system
08/05/1999WO1999039475A1 Cryptographic system
08/05/1999WO1999026182A3 Electric data authentication system
08/04/1999EP0933957A1 Effective use of dialed digits in call origination
08/04/1999EP0932956A1 Transfer of signed and encrypted information
08/04/1999EP0843929A4 Method for adaptively switching between pcs authentication schemes
08/04/1999CN1224962A Cryptograph key distribution system
08/04/1999CN1224961A Communication method and communication apparatus
08/04/1999CA2260719A1 System and method for ciphering data
08/03/1999US5933829 Method for a client computer to retrieve a computer file
08/03/1999US5933798 Detecting a watermark embedded in an information signal
08/03/1999US5933504 Strengthened public key protocol
08/03/1999US5933503 In a processor of a computer
08/03/1999US5933501 `Virtual` encryption scheme combining different encryption operators into compound-encryption mechanism
08/03/1999US5933498 System for controlling access and distribution of digital property
08/03/1999US5931905 TV mail system
07/1999
07/29/1999WO1999038325A2 Conditional access
07/29/1999WO1999038288A1 Method for dynamically updating cellular-phone-unique-encryption keys
07/29/1999WO1999038143A1 Data converter and recording medium on which program for executing data conversion is recorded
07/29/1999WO1999028887A3 Method for reducing storage space requirements for a first electronic key and coding/decoding arrangement
07/29/1999WO1999025093A3 Secure handshake protocol
07/29/1999DE19900848A1 Device for delivery and access of internet data
07/28/1999EP0932317A1 Method for crypted data transmission between a subscriber identification module and a mobile radio terminal
07/28/1999EP0932273A1 Executing permutations
07/28/1999EP0932272A2 Encryption strength evaluation support apparatus and recording medium recording encryption strength evaluation support program
07/28/1999EP0932124A1 Integrated circuit and smart card comprising such a circuit
07/28/1999EP0932109A2 A method for authentification item
07/28/1999EP0931395A1 Improved generation of encryption key
07/28/1999EP0931394A2 Method of exchanging cryptographic key material between a first computer unit and a second computer unit
07/28/1999CN1224555A Public key cryrography method
07/27/1999US5930704 Reconfigurable subscriber terminal for a wireless telecommunications system
07/27/1999US5930365 Digital data shuffling/de-shuffling system
07/27/1999US5930364 Synchronized chaotic system and communication system using synchronized chaotic system
07/27/1999US5930362 Generation of encryption key
07/27/1999CA2260483A1 System and method for establishing secure facsimile communication
07/27/1999CA2154970C Method for sharing secret information, generating a digital signature, and performing certification in a communication system that has a plurality of information procesing apparatuses and a communication system that employs such a method
07/26/1999CA2258221A1 Process to transfer information between a subscriber identity module and a mobile radiocommunication terminal, plus the corresponding subscriber identity module and mobile terminal
07/22/1999WO1999037103A1 An access control method for a mobile communications system
07/22/1999WO1999037094A1 Small-format subsystem for broadband communication services
07/22/1999WO1999037069A1 Method for transferring data from a head-end to a number of receivers
07/22/1999WO1999037053A1 Key management system
07/22/1999WO1999037052A1 Method and apparatus for conveying a private message to selected members
07/22/1999WO1999037048A1 Video program bearing transport stream remultiplexer
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