| 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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| 04/21/2011 | US20110093718 Hybrid signature scheme |
| 04/20/2011 | EP2312808A1 Improvements to an agile network protocol for secure communications with assured system availability |
| 04/20/2011 | EP2312791A1 Key management for telephone calls to protect signaling and call packets between CTA's |
| 04/20/2011 | EP1481509B1 Code generator and device for synchronous or asynchronous and permanent identification or encoding and decoding of data of any particular length |
| 04/20/2011 | EP1336277B1 Methods and apparatus for identifying asset location in mobile communication networks |
| 04/20/2011 | CN1841443B Calculation method, calculation equipment |
| 04/20/2011 | CN102027526A Method and system for embedding covert data in a text document using space encoding |
| 04/20/2011 | CN101553857B Encryption device, encryption method, and computer program |
| 04/20/2011 | CN101553856B Encryption device and encryption method |
| 04/19/2011 | US7930549 Accelerated signature verification on an elliptic curve |
| 04/19/2011 | US7930415 Method and system for authentication when certification authority public and private keys expire |
| 04/19/2011 | US7930398 Distributed computing system for resource reservation and user verification |
| 04/19/2011 | US7929701 Multiple level public key hierarchy for performance and high security |
| 04/19/2011 | US7929692 Firmware encrypting and decrypting method and an apparatus using the same |
| 04/19/2011 | CA2485943C Data conversion apparatus and data conversion method |
| 04/19/2011 | CA2434328C Methods and systems for cryptographically protecting secure content |
| 04/13/2011 | EP2309381A1 Random number generation and management method, and device |
| 04/13/2011 | CN1959770B Encryption method, decode method for cryptograph, encrypting machine, cryptograph decoder and communication system |
| 04/13/2011 | CN1905009B Decoding apparatus |
| 04/13/2011 | CN102016958A Encryption device and encryption system |
| 04/13/2011 | CN101208747B Apparatus and method for recording and reproducing contents |
| 04/12/2011 | US7925017 Information recording device, information playback device, information recording medium, information recording method, information playback method, and program providing medium |
| 04/07/2011 | WO2011040023A1 Encryption apparatus, decryption apparatus, encryption method, decryption method and encryption/decryption system |
| 04/06/2011 | EP2306670A2 Hybrid digital signature scheme |
| 04/06/2011 | CN1957384B Electronic element and data processing method |
| 04/06/2011 | CN1914852B Information processing device, information processing method |
| 04/06/2011 | CN1734527B Data conversion device and data conversion method |
| 04/06/2011 | CN101345823B Information device and portable information apparatus |
| 04/05/2011 | US7921296 Generating and matching hashes of multimedia content |
| 03/31/2011 | WO2011036747A1 Calculation device |
| 03/30/2011 | EP2302833A2 Method and apparatus for secure cryptographic key storage, certification and use |
| 03/30/2011 | EP2302555A2 Error correction |
| 03/30/2011 | CN101521504B Implementation method for reversible logic unit used for low power consumption encryption system |
| 03/30/2011 | CN101197131B Accidental vocal print password validation system, accidental vocal print cipher lock and its generation method |
| 03/29/2011 | US7917749 Systems and methods for secure transaction management and electronic rights protection |
| 03/29/2011 | US7917746 Authentication of data transmitted in a digital transmission system |
| 03/29/2011 | US7916343 Method of encoding a latent image and article produced |
| 03/24/2011 | WO2011033672A1 Arithmetic apparatus, method and program |
| 03/24/2011 | WO2011033642A1 Signature generation device and signature verification device |
| 03/23/2011 | EP1504596B1 High-resolution image projection |
| 03/23/2011 | EP1123545B1 Copy method avoiding bit-to-bit duplication of digital data and reading device for implementing same |
| 03/23/2011 | CN1684115B Text digital water printing technology based on character topoloical structure |
| 03/22/2011 | US7913311 Methods and systems for providing access control to electronic data |
| 03/22/2011 | US7913088 Digital signature and authentication method and apparatus |
| 03/17/2011 | WO2011030468A1 Arithmetic device |
| 03/10/2011 | US20110059724 hand-portable electronic device for verifying an input test sequence of characters against a predetermined sequence of characters |
| 03/08/2011 | US7904731 Integrated circuit that uses a dynamic characteristic of the circuit |
| 03/08/2011 | US7904719 Extending the range of computational fields of integers |
| 03/02/2011 | EP2290904A1 An agile network protocol for secure communications with assured system availability |
| 03/02/2011 | CN1777946B Information processing device and method |
| 03/02/2011 | CN1706207B Method and system for re-authentication in IP multimedia core network system (IMS) |
| 03/01/2011 | US7900239 Controlling access to a resource by a program using a digital signature |
| 03/01/2011 | US7900050 Digital document management system, digital document management method, and digital document management program |
| 03/01/2011 | US7899165 Maintenance information communication terminal, image forming apparatus provided with same, maintenance information management host, and communication method |
| 02/24/2011 | WO2011021734A1 Packaging container preventing damage, forgery and alteration of identifier, authentication marking, and authentication marking method thereof |
| 02/24/2011 | WO2011021340A1 Virtual thin client making device, virtual thin client making system, virtual thin client making program, and virtual thin client making method |
| 02/24/2011 | US20110047389 Trusted Infrastructure Support Systems, Methods and Techniques for Secure Electronic Commerce Electronic Transactions and Rights Management |
| 02/24/2011 | US20110047078 Trusted Infrastructure Support Systems, Methods and Techniques for Secure Electronic Commerce Electronic Transactions and Rights Management |
| 02/24/2011 | US20110047077 Trusted Infrastructure Support Systems, Methods and Techniques for Secure Electronic Commerce Electronic Transactions and Rights Management |
| 02/24/2011 | US20110047054 Trusted Infrastructure Support Systems, Methods and Techniques for Secure Electronic Commerce Electronic Transactions and Rights Management |
| 02/23/2011 | EP2287824A1 Encryption device and encryption system |
| 02/23/2011 | CN1535015B Cipher programming capable of completely measuring of measurable multimedia |
| 02/22/2011 | USRE42171 Digital data file encryption apparatus and method and recording medium for recording digital data file encryption program thereon |
| 02/22/2011 | US7895251 Random number generating method and random number generating apparatus |
| 02/16/2011 | EP1466448B1 Method and apparatus for integration of communication links with a remote direct memory access protocol |
| 02/16/2011 | CN101978649A Data encryption device |
| 02/15/2011 | US7891007 Systems and methods for issuing usage licenses for digital content and services |
| 02/15/2011 | US7890771 Saving and retrieving data based on public key encryption |
| 02/15/2011 | US7890560 Random number generating circuit, semiconductor integrated circuit, IC card and information terminal device |
| 02/10/2011 | WO2011016450A1 Electronic price-proposing system, electronic price-proposing device, and electronic price-proposing method |
| 02/10/2011 | WO2011016401A1 Function cipher application system |
| 02/09/2011 | CN201742425U Non-contact type CPU card multi-application security authentication and encryption system |
| 02/09/2011 | CN101971186A Information leak prevention device, and method and program thereof |
| 02/09/2011 | CN101093626B Palm print cipher key system |
| 02/08/2011 | US7886159 Data providing system and apparatus and methods of same |
| 02/08/2011 | US7885404 Cryptographic systems and methods supporting multiple modes |
| 02/03/2011 | WO2011013463A1 Range retrieval system, range retrieval method, and program for range retrieval |
| 02/03/2011 | WO2011013303A1 Received-data authentication method and digital broadcast receiver |
| 02/02/2011 | EP1413088B1 Method of creating a virtual private network using a public network |
| 02/02/2011 | EP1048143B1 Method and apparatus for secure cryptographic key storage and use |
| 02/02/2011 | CN101965711A Signature and verification method, signature generation device, and signature verification device |
| 02/02/2011 | CN101965602A Scalar multiplication method, raising method, recording medium where scalar multiplication program is recorded, and recording medium where raising method program is recorded |
| 02/01/2011 | USRE42107 Digital data file encryption apparatus and method and recording medium for recording digital data file encryption program thereon |
| 02/01/2011 | USRE42106 Digital data file encryption apparatus and method and recording medium for recording digital data file encryption program thereon |
| 02/01/2011 | US7878549 Printed substrate having embedded covert information |
| 01/27/2011 | WO2011010383A1 Arithmetic device |
| 01/27/2011 | US20110022846 Systems and Methods for Secure Transaction Management and Electronic Rights Protection |
| 01/27/2011 | US20110022842 Contents transmitter apparatus, contents receiver apparatus and contents transmitting method |
| 01/27/2011 | US20110022520 Systems and Methods for Secure Transaction Management and Electronic Rights Protection |
| 01/26/2011 | EP2278751A1 Mobile account authentication service |
| 01/26/2011 | CN1703028B Secure federation of data communication networks |
| 01/26/2011 | CN101375323B Encryption/decryption device, encryption/decryption device manufacturing device, and method |
| 01/25/2011 | US7877616 Data management system, data processing system, and computer-readable medium having on which data management program is recorded |
| 01/25/2011 | US7877610 Hybrid signature scheme |
| 01/20/2011 | WO2011007697A1 Anonymous authentication signature system, user device, verification device, signature method, verification method, and program therefor |
| 01/19/2011 | CN1677920B Methods and systems for protecting media content |
| 01/19/2011 | CN101953112A Information security device and information security system |
| 01/19/2011 | CN101952870A Data converter, data conversion method, and computer program |
| 01/19/2011 | CN101292274B Information security device, information security method, computer program, computer-readable recording medium, and integrated circuit |
| 01/18/2011 | US7873838 Method, apparatus, and program product for flexible redaction of content |