| Patents for G09C 1 - Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system (12,544) |
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| 10/04/2001 | US20010027450 Method of detecting changed contents |
| 10/04/2001 | EP1139688A2 Providing location data about a mobil entity |
| 10/04/2001 | EP1139687A2 Providing location data about a mobile entity |
| 10/04/2001 | EP1139199A2 Detection of unauthorized data modification on a network |
| 10/04/2001 | EP1138143A1 A method for optimizing of data transmission |
| 10/03/2001 | CN1316147A Apparatus for securing user's information in mobile communication system connected to internet and method thereof |
| 10/02/2001 | US6298137 Ring-based public key cryptosystem method |
| 10/02/2001 | US6298136 Cryptographic method and apparatus for non-linearly merging a data block and a key |
| 09/27/2001 | WO2001071969A1 Device and method for increasing the operational reliability and the uniformity of a source of noise |
| 09/27/2001 | WO2001071961A1 System, method and computer program product for providing unified authentication services for online applications |
| 09/27/2001 | WO2001071554A2 Methods of accessing and using web-pages |
| 09/27/2001 | WO2001071460A2 Web site authentication using a digital hallmark |
| 09/27/2001 | WO2001024437A9 Systems and methods for authenticating an electronic message |
| 09/27/2001 | US20010024502 Encryption apparatus and method, and decryption apparatus and method based on block encryption |
| 09/27/2001 | US20010024501 Method and apparatus for shuffle with proof, method and apparatus for shuffle verification, method and apparatus for generating input message sequence and program for same |
| 09/26/2001 | EP1137286A2 Synchronization arrangement for a compressed video signal |
| 09/26/2001 | EP1137221A1 Method and apparatus for increasing the security and regularity of a noise source |
| 09/26/2001 | EP1136927A2 Anonymous participation authority management system |
| 09/26/2001 | EP1135887A1 Message identification with confidentiality, integrity, and source authentication |
| 09/26/2001 | EP0832542B1 Process and device for authenticating subscribers to digital exchanges |
| 09/26/2001 | CN2450735Y IC card computer lock capable of ciphering by user |
| 09/26/2001 | CN1314754A Method and system for completing custermer machine file by network intermediate body |
| 09/26/2001 | CN1314667A Anti-theft method with cipher program protective function for household electric appliances |
| 09/24/2001 | CA2341806A1 System and method for protection of digital works |
| 09/20/2001 | WO2001069845A1 Chaos cipher system |
| 09/20/2001 | WO2001069844A1 Contents storage device and contents reading device |
| 09/20/2001 | WO2001069556A2 Method and system for secure payments over a computer network |
| 09/20/2001 | US20010023417 System for controlling the distribution and use of digital works using digital tickets |
| 09/20/2001 | DE10063240A1 Verfahren und Vorrichtung zum Erzeugen von Zahlen Method and apparatus for generating numbers |
| 09/20/2001 | CA2403283A1 Method and system for secure payments over a computer network |
| 09/19/2001 | EP1134930A2 Information providing apparatus and method, information processing apparatus and method, and program storage medium |
| 09/19/2001 | EP1134708A1 Method for carrying out transactions and device for realising the same |
| 09/19/2001 | EP1134653A2 Information processing device, information processing method and smartcard |
| 09/19/2001 | EP1034517B1 Method for managing data in a smart card |
| 09/19/2001 | EP0916209B1 Cryptographic key recovery system |
| 09/19/2001 | EP0829069B1 Data-transmission device, consisting of a pulse generator and a monitoring unit, for use in vehicle, and pulse generator for use with the monitoring unit |
| 09/19/2001 | CN1314040A Public-key signature methods and systems |
| 09/19/2001 | CN1313688A Information supplying and processing device and method, and program storing medium |
| 09/19/2001 | CN1313550A Canceling information update method, device and recording medium |
| 09/14/2001 | CA2339571A1 Information providing apparatus and method, information processing apparatus and method, and program storage medium |
| 09/13/2001 | WO2001067712A1 Method and device for securing data for sending over an open network |
| 09/13/2001 | WO2001067425A1 Block encryption device using auxiliary conversion |
| 09/13/2001 | US20010021928 Method for inter-enterprise role-based authorization |
| 09/13/2001 | US20010021254 Method and apparatus for symmetric-key encryption |
| 09/13/2001 | US20010021253 Method and apparatus for symmetric-key encryption |
| 09/13/2001 | US20010021251 Image processing system and method, memory card, and storage medium |
| 09/12/2001 | EP1133100A2 Encryption apparatus and method, and decryption apparatus and method based on block encrytion |
| 09/12/2001 | EP1133099A2 Method and apparatus for symmetric-key encryption |
| 09/12/2001 | CN1312630A Encryption apparatus based on block encryption type, its method and decoding device and method thereof |
| 09/11/2001 | US6289451 System and method for efficiently implementing an authenticated communications channel that facilitates tamper detection |
| 09/11/2001 | US6289108 Methods for detecting alteration of audio and images |
| 09/11/2001 | US6289105 Method and apparatus for encrypting and transferring electronic mails |
| 09/11/2001 | CA2234982C Apparatus and method for encrypting mpeg packets |
| 09/07/2001 | WO2001024437A3 Systems and methods for authenticating an electronic message |
| 09/06/2001 | US20010020273 Method of virtual private network communication in security gateway apparatus and security gateway apparatus using the same |
| 09/06/2001 | US20010019615 Method and apparatus of enciphering and deciphering data using multiple keys |
| 09/06/2001 | US20010019609 Encryption evaluation support system that can largely reduce evaluation time of encryption algorithm, and record medium recording its program |
| 09/06/2001 | DE19782169C2 Kryptographisch geschütztes Seitenwechsel-Subsystem Cryptographically protected paging subsystem |
| 09/06/2001 | DE10008974A1 Signaturverfahren Signature schemes |
| 09/06/2001 | DE10008973A1 Autorisierungsverfahren mit Zertifikat Authorization procedures with certificate |
| 09/05/2001 | EP1130917A2 Copyright protected signal transmission apparatus and signal transmission method |
| 09/05/2001 | EP1130844A2 Public-key-encryption data-communication system and data-communication-system forming method |
| 09/05/2001 | EP1130843A2 System and method for transferring the right to decode messages in a symmetric encoding scheme |
| 09/05/2001 | EP1130508A2 Pseudo-random number generator, radio transmitter and radio receiver |
| 09/05/2001 | EP1130500A2 System and method for distribution and monitoring of copyrighted data |
| 09/05/2001 | EP1129542A1 Method and apparatus for secure digital chaotic communication |
| 09/05/2001 | EP1129541A1 Method and system for authenticating and utilizing secure resources in a computer system |
| 09/05/2001 | EP1129438A1 Authenticating method between a smart card and a terminal |
| 09/05/2001 | CN1311582A Signalling device and signalling method |
| 09/04/2001 | US6286008 Electronic information distribution method and recording medium |
| 09/04/2001 | US6285761 Method for generating pseudo-random numbers |
| 09/04/2001 | US6283369 IC card system and method for securing the system |
| 08/30/2001 | WO2001063385A1 Controlling access to a resource by a program using a digital signature |
| 08/30/2001 | WO2000052866A9 Portable electronic charge and authorization devices and methods therefor |
| 08/30/2001 | US20010018744 Electronic data management system and method |
| 08/30/2001 | US20010018742 Content distribution system, content distribution method, content distribution status monitoring apparatus and method, and content using apparatus and method |
| 08/30/2001 | US20010018741 Method and apparatus for performing data encryption and error code correction |
| 08/30/2001 | US20010018740 Method and apparatus for secure data transmission via network |
| 08/30/2001 | US20010018739 Method and system for processing electronic documents |
| 08/30/2001 | US20010018635 Radio data communication apparatus |
| 08/30/2001 | US20010017885 Method and apparatus for distributing contents |
| 08/30/2001 | DE19963408A1 Tragbarer Datenträger mit Zugriffsschutz durch Schlüsselteilung A portable data carrier with access protection by key division |
| 08/29/2001 | EP1128250A2 System, method and apparatus for playback of digital content |
| 08/29/2001 | EP1128242A2 Process of signature |
| 08/29/2001 | EP1127756A2 Authorisation method with certificate |
| 08/29/2001 | CN1310816A Circuit and method of modulo multiplication |
| 08/29/2001 | CN1310702A Nitric ester and nitrate salts of specific drugs |
| 08/28/2001 | US6282654 Information signal recording/reproducing system, information signal recording device, information signal reproducing device and information signal recording/reproducing process |
| 08/28/2001 | US6282290 High speed modular exponentiator |
| 08/23/2001 | WO2001061961A2 Method for securing the authenticity of hardware and software in a network |
| 08/23/2001 | WO2001061911A1 Information trading system |
| 08/23/2001 | US20010016911 Signature calculation system by use of mobile agent |
| 08/22/2001 | EP1126705A2 Receiving controlled - access broadcast signals |
| 08/22/2001 | EP1126655A1 Method of hardware and software authentication in a network system |
| 08/22/2001 | EP1126643A2 A method and receiver for accessing data carried by a broadcast signal |
| 08/22/2001 | EP1125419A2 An agile network protocol for secure communications with assured system availability |
| 08/22/2001 | EP1125414A2 Network protocol for secure communications |
| 08/22/2001 | EP1125396A2 Incorporating shared randomness into distributed cryptography |
| 08/22/2001 | EP1125395A1 Method and array for authenticating a first instance and a second instance |
| 08/22/2001 | EP1125394A1 Countermeasure method in an electronic component using a secret key cryptographic algorithm |