Patents
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)
06/2005
06/28/2005US6912512 Digital contents distribution system capable of flexibly changing using conditions
06/23/2005WO2005057525A1 Encryption/decryption system, device, and method
06/23/2005US20050138462 System and method for managing protocol network failures in a cluster system
06/23/2005US20050138398 System of databases of personal data and a method of governing access to databases of personal data
06/23/2005US20050138359 Mesh networks with exclusion capability
06/22/2005EP1545073A1 Mesh networks with exclusion capability
06/22/2005EP1545048A1 Reactive system safety verification device, method, program, and recording medium containing the program
06/22/2005EP1544710A2 Information processing apparatus, image forming apparatus, and electronic data movement canceling method
06/22/2005EP1171971B1 Method and device for effective key length control
06/22/2005EP0928526B1 Method and apparatus for enhanced cmea employing enhanced transformations
06/22/2005CN1630999A Method for countermeasure in an electronic component using a secret key algorithm
06/22/2005CN1630257A Mesh networks with exclusion capability
06/22/2005CN1630231A Weighted secret key sharing and reconstructing method
06/21/2005US6910022 Usage rights grammar and digital works having usage rights created with the grammar
06/21/2005US6909785 Method and apparatus for efficient irregular synchronization of a stream cipher
06/21/2005CA2449665C Block encryption device using auxiliary conversion
06/16/2005US20050129268 Method and system for watermarking an electrically depicted image
06/16/2005US20050129238 Architecture for manufacturing authenticatable gaming systems
06/16/2005US20050129237 Architecture for manufacturing authenticatable gaming systems
06/16/2005US20050128216 Connection device capable of mixing an rgb graphics signal and a yuv video signal and related method
06/16/2005US20050128202 Graphics card for smoothing the playing of video
06/15/2005EP1542135A1 A method which is able to centralize the administration of the user registered information across networks
06/15/2005EP1542132A1 Authentication hardware, authentication system, and use management hardware
06/15/2005EP1540955A1 Content and key distribution system for digital content representing media streams
06/15/2005EP1540905A1 Method for the transmission of data telegrammes in a switched cyclical communication system
06/15/2005EP1540882A1 Groups signature scheme
06/15/2005EP1540870A1 Image encryption method and visual decryption device
06/15/2005EP1540479A1 Dynamic negotiation of security arrangements between web services
06/15/2005EP1540440A2 Multi-token seal and unseal
06/15/2005EP1090480A4 Improved des and other cryptographic processes with leak minimization for smartcards and other cryptosystems
06/15/2005CN1628447A Signing and authentication devices and processes and corresponding products
06/15/2005CN1628302A Efficient storage of fingerprints
06/09/2005WO2005052768A1 Secret information processing system and lsi
06/09/2005US20050125683 Information acquisition system, information acquisition method and information processing program
06/09/2005US20050125668 Apparatus and method for inter-program authentication using dynamically-generated public/private key pairs
06/09/2005US20050125659 Method and device for authenticating digital data by means of an authentication extension module
06/09/2005US20050125619 Secure video card methods and systems
06/09/2005US20050125548 Securely identifying an executable to a trust-determining entity
06/08/2005EP1538624A2 System and method for copy protection for digital signals
06/08/2005EP1537474A2 Feedback random number generation method and system
06/08/2005EP1354264B1 Random number generator and method for generating a random number
06/08/2005EP0892953A4 Security apparatus and method for a data communications system
06/08/2005CN1625888A System and method for starting financial transaction service provided by remote communication operation mechanism
06/08/2005CN1625258A Method for protection against decryption of a multiplex signal and broadcast system therefore
06/08/2005CN1625221A Image forming device, pattern forming method and its program
06/08/2005CN1625136A Connection control system, connection control device and connection managing device
06/08/2005CN1205779C System for preventing illegal copy digital content
06/08/2005CN1205538C Apparatus for multiprecision integer arithmetic
06/07/2005US6904522 Method and apparatus for secure communication of information between a plurality of digital audiovisual devices
06/02/2005WO2005050912A1 A hand-portable electronic device for verifying an input test sequence of characters against a predetermined sequence of characters
06/02/2005WO2005050905A1 Randomized modular reduction method and hardware therefor
06/02/2005WO2005050458A1 Data storage apparatus, data processing apparatus, information processing system, and data storage method
06/02/2005US20050120245 Confidential information processing system and LSI
06/02/2005US20050120232 Data terminal managing ciphered content data and license acquired by software
06/02/2005US20050120220 Increasing integrity of watermarks using robust features
06/02/2005US20050120205 Certificate management system and method
06/02/2005US20050118987 Information-processing device
06/02/2005US20050117752 Communication system, information processing apparatus, information processing method, recording medium and program
06/02/2005US20050117587 Distributed computing system for resource reservation and user verification
06/01/2005EP1536609A2 Systems and methods for authenticating communications in a network
06/01/2005EP1536424A2 System and method for copy protection for digital signals
06/01/2005EP1536307A1 Encryption of system paging file
06/01/2005EP1535424A2 Data encryption method, cryptographic system and associated component
06/01/2005EP1535183A2 Authentication in a communication system
06/01/2005EP0935858B1 Method for data decorrelation
06/01/2005CN1623327A Partial encryption and PID mapping
06/01/2005CN1622623A Method and apparatus for searching next signal frame synchronous character in digital coding signal
06/01/2005CN1622061A Encryption of system paging file
06/01/2005CN1204711C Equipment and method used for encryption, decryption and authentication information distribution
06/01/2005CN1204525C Fabricating device and method for complete typehead of handwritten characters
05/2005
05/31/2005US6901513 Process for generating a digital signature and process for checking the signature
05/31/2005US6901491 Method and apparatus for integration of communication links with a remote direct memory access protocol
05/26/2005US20050114688 Encryption of system paging file
05/26/2005US20050114677 Security support apparatus and computer-readable recording medium recorded with program code to cause a computer to support security
05/26/2005US20050114669 Image protection system and method
05/26/2005US20050114651 Implicit certificate scheme
05/26/2005US20050114425 Configurable calculating unit
05/26/2005US20050111659 Cryptographic processing apparatus and cryptographic processing method, and computer program
05/26/2005US20050111657 Weighted secret sharing and reconstructing method
05/25/2005EP1532781A1 System, method and computer product for delivery and receipt of s/mime encrypted data
05/25/2005EP1532581A2 Fingerprint embedding
05/25/2005EP1532556A2 A coercion-free voting scheme
05/25/2005EP1532515A2 Method for improving unpredictability of output of pseudo-random number generators
05/25/2005EP1532509A2 Method for transmitting encrypted user data objects
05/25/2005EP1425885B1 Method and system for transmitting data from a first data network into a second data network
05/25/2005CN1619604A Layer 2 switch device with verification management table
05/25/2005CN1203640C Method of establishing the trustworthiness level of participant in communication connection
05/25/2005CN1203431C Common key encryption device
05/25/2005CN1203413C Canceling information update method, device and storage medium device
05/24/2005US6898708 Device for reproducing data
05/24/2005US6898616 Arbitrary function generating circuit using a simple operational element and an encryption method thereof
05/24/2005US6898576 Method and apparatus for executing code in accordance with usage rights
05/19/2005WO2005046119A1 A method of setting up the association between the session transaction identification and the network application entity
05/19/2005WO2005045789A1 Secure processor
05/19/2005WO2005008385A3 Reprogrammable security for controlling piracy and enabling interactive content
05/19/2005US20050108381 System and method for distributed management of shared computers
05/19/2005US20050108313 Calculation apparatus and encrypt and decrypt processing apparatus
05/19/2005US20050108309 Authentication system
05/19/2005US20050108308 Random number generating circuit, semiconductor integrated circuit, IC card and information terminal device
05/19/2005US20050108173 System for controlling the distribution and use digital works using digital tickets
1 ... 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 ... 126