| 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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| 11/15/2001 | WO2001086412A1 Modulo calculation method and device |
| 11/15/2001 | WO2001047266A3 Conditional access system |
| 11/15/2001 | US20010042043 Cryptographic methods, apparatus and systems for storage media electronic rights management in closed and connected appliances |
| 11/14/2001 | CN1322320A Data providing system, device, and method |
| 11/14/2001 | CN1321950A Content sender machine, content receiver machine, authorizing method and system |
| 11/13/2001 | US6317832 Secure multiple application card system and process |
| 11/13/2001 | US6317830 Process and device for authenticating subscribers to digital exchanges |
| 11/08/2001 | WO2001084772A2 Generation of keyed integer permutations for message authentication codes |
| 11/08/2001 | WO2001084769A1 Improving des hardware throughput for short operations |
| 11/08/2001 | WO2001084283A2 Network enabled application software system and method |
| 11/08/2001 | US20010039651 Apparatus and method for translating with decoding function |
| 11/08/2001 | US20010039613 Authentication system, and contents-information sender and receiver |
| 11/08/2001 | US20010038696 Robust efficient distributed RSA-key generation |
| 11/07/2001 | EP1152568A2 Authentication system and contents-information sender and receiver |
| 11/07/2001 | EP1151611A1 System for automated comprehensive remote servicing for media information |
| 11/07/2001 | EP1151592A1 Media distribution system |
| 11/07/2001 | EP1151579A2 Self-generation of certificates using a secure microprocessor in a device for transferring digital information |
| 11/07/2001 | EP1151576A1 Public and private key cryptographic method |
| 11/07/2001 | EP1151575A1 Method and apparatus for generating encryption stream ciphers |
| 11/07/2001 | CN1321265A Digital data copyright protection system |
| 11/06/2001 | US6314188 Motion picture data encrypting method and computer system and motion picture data encoding/decoding apparatus to which encrypting method is applied |
| 11/06/2001 | US6314187 Method for encryption or decryption using finite group operations |
| 11/06/2001 | US6314186 Block cipher algorithm having a robust security against differential cryptanalysis, linear cryptanalysis and higher-order differential cryptanalysis |
| 11/01/2001 | WO2001082038A2 Security link management in dynamic networks |
| 11/01/2001 | WO2001082037A2 Security link management in dynamic networks |
| 11/01/2001 | WO2001057750A8 Authentication system |
| 11/01/2001 | US20010037452 Information providing apparatus and method, information processing apparatus and method, and program storage medium |
| 11/01/2001 | US20010037307 Signal transmission apparatus and signal transmission method |
| 11/01/2001 | US20010036275 Secret key generating method, common key generating method, encryption method, cryptographic communication method and cryptographic communication system |
| 11/01/2001 | US20010036267 Method for generating electronic keys from integer numbers prime with each other and a device for implementing the method |
| 10/31/2001 | EP1010323B1 Verification of the source of program of information in a conditional access system |
| 10/31/2001 | EP1000508B1 Authorization of services in a conditional access system |
| 10/31/2001 | CN1320232A System for tracking end-user electronic content usage |
| 10/30/2001 | US6311171 Symmetrically-secured electronic communication system |
| 10/25/2001 | WO2001080482A1 Method and apparatus for protecting file system based on digital signature certificate |
| 10/25/2001 | WO2001080481A1 Cryptography method on elliptic curves |
| 10/25/2001 | WO2001080011A1 Secure dynamic link allocation system for mobile data communication |
| 10/25/2001 | WO2001031435A3 Method for multiplying divisor classes with a scalar |
| 10/25/2001 | US20010034837 Method and apparatus for secure distribution of authentication credentials to roaming users |
| 10/25/2001 | US20010034834 Public-key-encryption data-communication system and data-communication-system forming method |
| 10/25/2001 | US20010034714 Content playback system, content playback method, content playback requesting apparatus, and temporary playback apparatus |
| 10/25/2001 | US20010033663 Pseudorandom number generation circuit and data communication system employing the same |
| 10/25/2001 | US20010033655 Timing attack resistant cryptographic system |
| 10/25/2001 | CA2405783A1 Secure dynamic link allocation system for mobile data communication |
| 10/24/2001 | EP1148676A2 Transmitting and/or receiving apparatus, methods and systems using public key certificates |
| 10/24/2001 | EP1148675A1 Public key cryptograph and key sharing method |
| 10/24/2001 | EP1148407A2 System and method for restricting the use of a package of distributed application software |
| 10/24/2001 | EP1147634A1 Secure system using continuously-changing features of a body part as a key |
| 10/24/2001 | EP1012703B1 Modular arithmetic coprocessor comprising an integer division circuit |
| 10/24/2001 | EP0909434B1 Method and device for loading input data into an algorithm during authentication |
| 10/24/2001 | EP0870382A4 Application level security system and method |
| 10/24/2001 | EP0858354A4 Bio-active frequency generator and method |
| 10/24/2001 | EP0634038B1 A cryptographic communications method and system |
| 10/24/2001 | CN2455548Y Wireless device against theft for motor car |
| 10/24/2001 | CN1319290A Time-stamping with binary linking schemes |
| 10/24/2001 | CN1319228A Copy protection method for digital data stored on medium |
| 10/24/2001 | CN1319218A Method of improving security in electronic transactions |
| 10/24/2001 | CN1318817A Anti-fake method for glass, ceramic and enamel products |
| 10/23/2001 | US6307935 Method and apparatus for fast elliptic encryption with direct embedding |
| 10/18/2001 | WO2001078301A1 Information recording/reproducing apparatus and method |
| 10/18/2001 | WO2001078285A1 System and method for controlling and enforcing access rights to encrypted media |
| 10/18/2001 | WO2001078075A1 Method and apparatus for secure transmission of data |
| 10/18/2001 | WO2001078024A2 An improved method and system for conducting secure payments over a computer network |
| 10/18/2001 | WO2001077920A1 Storage area dividing method for portable device |
| 10/18/2001 | US20010032191 Electronic settlement payment method |
| 10/18/2001 | US20010032186 Image processing apparatus, image processing method, electronic commerce system, electronic commerce method and a computer program product |
| 10/18/2001 | US20010032088 License devolution apparatus |
| 10/18/2001 | DE10114188A1 Auction method by evaluating received bids or bid strategies in environment that is not accessible by auctioneer and providing result to bidders |
| 10/18/2001 | CA2406375A1 An improved method and system for conducting secure payments over a computer network |
| 10/18/2001 | CA2405022A1 Method and apparatus for secure transmission of data |
| 10/18/2001 | CA2372552A1 Information recording/reproducing apparatus and method |
| 10/17/2001 | EP1146715A1 System and method for protection of digital works |
| 10/17/2001 | EP1146714A1 System and method for protection of digital works |
| 10/17/2001 | EP1145507A1 Web-based delivery of secure e-mail messages |
| 10/17/2001 | EP1145483A1 Authenticating or signature method with reduced computations |
| 10/17/2001 | EP1145482A2 Method for proving the authenticity or integrity of a message by means of a public exponent equal to the power of two |
| 10/17/2001 | EP1145473A2 Method, system, device for proving the authenticity of an entity and/or the integrity and/or the authenticity of a message using specific prime factors |
| 10/17/2001 | EP1145472A2 Method, system, device for proving the authenticity of an entity and/or the integrity and/or the authenticity of a message |
| 10/17/2001 | EP1125181A4 Apparatus for and method of electronic currency generation, transfer and redemption |
| 10/17/2001 | CN1317773A Gray scale bar code method |
| 10/16/2001 | US6304192 Authorization system and authorization method |
| 10/11/2001 | WO2001076135A1 Authentication of data transmitted in a digital transmission system |
| 10/11/2001 | WO2001075821A1 Method for protecting an electronic chip against fraud |
| 10/11/2001 | WO2001075563A2 Generating a key hierarchy for use in an isolated execution environment |
| 10/11/2001 | US20010029581 System and method for controlling and enforcing access rights to encrypted media |
| 10/11/2001 | US20010029495 Mail-order system using network and mail-ordering method thereof |
| 10/11/2001 | US20010028318 Encoding decryption data into a pattern of merge bits |
| 10/10/2001 | EP1143658A1 Authentication of data transmitted in a digital transmission system |
| 10/10/2001 | EP1142181A1 Auto-recoverable auto-certifiable cryptosystems with unescrowed signature-only keys |
| 10/10/2001 | EP1142128A1 Variable-length decoding |
| 10/10/2001 | EP1141820A1 A method for accelerating cryptographic operations on elliptic curves |
| 10/10/2001 | CN1317203A Method and apparatus for secure communication of information between plurality of digital audiovisual devices |
| 10/10/2001 | CN1317202A Conditional access system for broadcast digital TV. |
| 10/10/2001 | CN1317108A System for providing encrypted data, system for decrypting encrypted data and method for providing communication interface in such decrypting system |
| 10/09/2001 | US6301663 Copy protection apparatus and information recording medium used in this copy protection apparatus |
| 10/09/2001 | US6299069 Integrated circuit for embedding in smart cards, and method of issuing smart cards |
| 10/09/2001 | CA2247536C Remote proxy system and method |
| 10/04/2001 | WO2001074006A1 Device and method for generating electronic keys from mutual prime numbers |
| 10/04/2001 | US20010027522 Data copyright management system |
| 10/04/2001 | US20010027520 Authentication substitution system and Authentication substitution method |