| 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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| 06/28/2006 | CN1261895C Contents reproducing apparatus |
| 06/28/2006 | CN1261870C Data processing method and its apparatus |
| 06/28/2006 | CN1261841C Security system for preventing personal computer from being used by unauthorized people |
| 06/27/2006 | US7069440 Technique for obtaining a single sign-on certificate from a foreign PKI system using an existing strong authentication PKI system |
| 06/27/2006 | US7069439 Computing apparatus and methods using secure authentication arrangements |
| 06/27/2006 | US7069252 Electronic transaction server, client for seller, client for buyer and electronic transaction method |
| 06/27/2006 | US7069025 Methods and apparatus for identifying asset location in communication networks |
| 06/22/2006 | WO2006064768A1 Unauthorized deice detection device, unauthorized device detection system, unauthorized device detection method, program, recording medium, and device information update method |
| 06/22/2006 | WO2006064765A1 Unauthorized device detection device and unauthorized device detection system |
| 06/22/2006 | WO2006064763A1 Common key block encryption device, common key block encryption method, and common kay block encryption program |
| 06/22/2006 | US20060136723 Data processing apparatus and method |
| 06/22/2006 | US20060135124 Unitary management authentication device |
| 06/22/2006 | US20060133646 Video steganography |
| 06/21/2006 | EP1474925B1 Method for controlling the billing of a broadcast service by units of time |
| 06/21/2006 | EP1320956A4 Trusted authentication digital signature (tads) system |
| 06/21/2006 | CN1792063A Time-triggered communication system and method for the synchronized start of a dual-channel network |
| 06/21/2006 | CN1790360A Authentication system and method |
| 06/21/2006 | CN1260934C Method for preventing to destroy safety firewall |
| 06/21/2006 | CN1260627C Method and system for detecting and killing computer virus |
| 06/20/2006 | US7065788 Encryption operating apparatus and method having side-channel attack resistance |
| 06/20/2006 | US7065651 Secure video card methods and systems |
| 06/20/2006 | US7065505 Method for metering and pricing of digital works |
| 06/20/2006 | US7065215 Microprocessor with program and data protection function under multi-task environment |
| 06/15/2006 | WO2006061976A1 Information processing device, information recording medium, information processing method, and computer program |
| 06/15/2006 | US20060129828 Method which is able to centralize the administration of the user registered information across networks |
| 06/15/2006 | US20060129493 Usage rights grammar and digital works having usage rights created with the grammar |
| 06/15/2006 | US20060129492 Usage rights grammar and digital works having usage rights created with the grammar |
| 06/15/2006 | US20060129486 Quantum cash system and quantum cash apparatus |
| 06/15/2006 | US20060126849 Microprocessor with program and data protection function under multi-task environment |
| 06/15/2006 | US20060125690 Methods and apparatus for identifying asset location in communication networks |
| 06/14/2006 | EP1540905B1 Method for the transmission of data telegrammes in a switched cyclical communication system |
| 06/14/2006 | EP1193666B1 Method for securing safety of electronic information |
| 06/14/2006 | CN1259634C Encryption anti-forgery method based on substance characteristics |
| 06/13/2006 | US7059516 Person authentication system, person authentication method, information processing apparatus, and program providing medium |
| 06/13/2006 | CA2284154C Broadcast receiving system comprising a computer and a decoder |
| 06/13/2006 | CA2272921C Method of processing encrypted video data for generating decrypted program data |
| 06/08/2006 | WO2006059390A1 Encryption system |
| 06/08/2006 | US20060123134 Agile network protocol for secure communications with assured system availability |
| 06/08/2006 | US20060123072 Random number generation device |
| 06/08/2006 | US20060120530 Method of ciphering data transmission in a radio system |
| 06/08/2006 | US20060120528 Method of constructing hyperelliptic curves suitable for cryptographic purposes and cryptographic apparatus using such a method |
| 06/07/2006 | EP1667447A1 Data conversion system |
| 06/07/2006 | EP1667047A1 Method for managing digital rights using portable storage device |
| 06/07/2006 | EP1667046A1 Method for managing digital rights using portable storage device |
| 06/07/2006 | EP1667045A1 Method for managing digital rights using portable storage device |
| 06/07/2006 | EP1667029A1 Mutual authentication system between user and system |
| 06/07/2006 | EP1342153B1 Method and device for generating a pseudo random sequence using a discrete logarithm |
| 06/07/2006 | EP1317816A4 Linking public key of device to information during manufacture |
| 06/07/2006 | EP0923842B1 System for preventing electronic memory tampering |
| 06/07/2006 | CN2786685Y Certificating system |
| 06/07/2006 | CN1783949A Information equipment and portable information device |
| 06/07/2006 | CN1783779A Authentification of data in a digital transmission system |
| 06/07/2006 | CN1783139A Identification modes of content file producer and its method |
| 06/07/2006 | CN1783103A Method and system for transmitting electronic value information |
| 06/07/2006 | CN1783102A Method and device for copy protection |
| 06/07/2006 | CN1258916C Method and device for distributing content |
| 06/07/2006 | CN1258717C Method for information encryption |
| 06/06/2006 | US7058819 Data processing system, data processing method, and program providing medium |
| 06/06/2006 | US7058804 Data storing system, issuing apparatus, data providing apparatus and computer readable medium storing data storing program |
| 06/06/2006 | US7058674 Random number data generator |
| 06/06/2006 | US7058606 Method for loaning digital works |
| 06/06/2006 | US7058605 Document transfer systems |
| 06/06/2006 | US7058390 Mobile communication system using an encryption/decryption device |
| 06/06/2006 | CA2241052C Application level security system and method |
| 06/01/2006 | WO2006057390A1 Distribution channel authenticating system and distribution channel authenticating method |
| 06/01/2006 | WO2006057171A1 Signature and verifying method, and signature and verifying device |
| 06/01/2006 | US20060117175 Device authentication system |
| 06/01/2006 | US20060117013 Right information management method and right information management device |
| 06/01/2006 | US20060116968 Method and system for transmitting electronic value information |
| 06/01/2006 | US20060114315 Mixed media telecommunication call manager |
| 05/31/2006 | EP1662418A2 Systems and methods for secure transaction management and electronic rights protection |
| 05/31/2006 | EP1364279B1 Generating random data |
| 05/31/2006 | EP1052611B1 Data converter and recording medium on which program for executing data conversion is recorded |
| 05/31/2006 | CN1780455A Estate performance statistical method |
| 05/31/2006 | CN1780337A Free disturbance service realization in telecommunication network |
| 05/31/2006 | CN1780289A Method for transmitting and receiving data by building telecommunication in network speech telephone system |
| 05/31/2006 | CN1779743A Battery and authentication requesting device |
| 05/31/2006 | CN1779689A Data processing apparatus and data processing method |
| 05/30/2006 | US7055039 Protection of digital content using block cipher crytography |
| 05/30/2006 | US7054446 Chaos cryptographic communication method and chaos cryptographic communication system |
| 05/30/2006 | US7054444 Public and private key cryptographic method |
| 05/30/2006 | CA2341931C System and method for protection of digital works |
| 05/26/2006 | WO2006054559A1 Encryption computing device |
| 05/26/2006 | WO2006054476A1 Random number generating method and device |
| 05/26/2006 | WO2006054340A1 Portable wireless terminal and its security system |
| 05/26/2006 | CA2552747A1 Method for generating random number and random number generator |
| 05/25/2006 | US20060109984 Methods for audio watermarking and decoding |
| 05/24/2006 | EP1659552A1 Method and apparatus for arithmetic operation and recording medium of method of operation |
| 05/24/2006 | EP1438667B1 System and method for caching dram using an egress buffer |
| 05/24/2006 | EP1177536B9 Method of deriving an identification number |
| 05/24/2006 | CN1777946A Information recording medium, information processing device and method |
| 05/24/2006 | CN1776704A Safety system, identifying server, identifying method and program |
| 05/24/2006 | CN1257635C Communication method and data processing device |
| 05/24/2006 | CN1257629C Method for secure transmission of data |
| 05/24/2006 | CN1257508C Recording apparatus |
| 05/23/2006 | US7051212 Systems and methods for secure transaction management and electronic rights protection |
| 05/23/2006 | US7051202 Apparatus and computer-recording medium for evaluation support of encryption algorithm strength |
| 05/23/2006 | US7050588 System for processing an information signal |
| 05/23/2006 | US7050584 Method and system for regenerating a private key for a predetermined asymmetric cryptographic key pair |
| 05/23/2006 | US7050581 Method for making secure one or several computer installations using a common secret key algorithm, use of the method and a computer system utilizing the method |