| 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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| 05/30/2002 | US20020065956 Secure multi database system |
| 05/30/2002 | US20020065574 Data processor, semiconductor integrated circuit and CPU |
| 05/30/2002 | US20020064074 Data storage device and data storage method, information-processing apparatus and information-processing method, and program |
| 05/29/2002 | EP1209874A2 A home server including proxy, for authentication and encryption instead of a user terminal, in an electronic commercial transaction |
| 05/29/2002 | EP1209847A1 Image data authentication system |
| 05/29/2002 | EP1208666A1 Multiple module encryption method |
| 05/29/2002 | EP1208416A2 A technique for producing a parameter, such as a checksum, through a primitive that uses elementary register operations |
| 05/29/2002 | EP1110393B1 A copy protection system for home networks |
| 05/29/2002 | CN1351435A Encrypt pin generating circuit |
| 05/28/2002 | US6397334 Method and system for authenticating objects and object data |
| 05/28/2002 | US6397332 Verification data generating apparatus, data verification apparatus and storage medium for storing verification data generating program |
| 05/28/2002 | CA2233441C Secured gateway interface |
| 05/23/2002 | WO2002041651A2 Methods and apparatus for identifying asset location in mobile co mmunication networks |
| 05/23/2002 | WO2002041545A2 Wireless clock synchronization |
| 05/23/2002 | WO2002041504A2 Methods and apparatus for identifying asset location in communication networks |
| 05/23/2002 | WO2002041207A1 Security system for electronic commerce |
| 05/23/2002 | WO2001075563A3 Generating a key hierarchy for use in an isolated execution environment |
| 05/23/2002 | US20020062441 Authentication apparatus for authentication to permit electronic document or payment by card using personal information of individual, verification apparatus for verifying individual at payment site, and electronic authentication system interconnecting the same |
| 05/23/2002 | US20020062440 Home server including a proxy facility, for executing an authentication and an encryption process instead of a user terminal, in an electronic commercial transaction |
| 05/23/2002 | US20020062438 Reliance server for electronic transaction system |
| 05/23/2002 | US20020061104 Calculation unit for executing a cryptographic protocol |
| 05/23/2002 | US20020061029 System and method for multicasting multimedia content |
| 05/23/2002 | US20020061021 System and method for multicasting multimedia content |
| 05/23/2002 | US20020060736 Image data verification system |
| 05/23/2002 | CA2398781A1 Wireless clock synchronization |
| 05/22/2002 | EP1207486A1 Authentication system |
| 05/22/2002 | EP1043863A4 Method for the cryptographic conversion of l-bit input blocks of digital data into l-bit output blocks |
| 05/22/2002 | EP0958672A4 Low power telecommunication controller for a host computer server |
| 05/22/2002 | CN1350761A Integrity protection method for radio network signaling |
| 05/22/2002 | CN1350670A Public cryptographic control unit and system therefor |
| 05/22/2002 | CN1350233A Data selling/mediating/purchasing method, system, server, terminal and recording medium |
| 05/21/2002 | US6393564 Decrypting device |
| 05/21/2002 | US6393563 Temporary digital signature method and system |
| 05/21/2002 | US6393562 Method and apparatus for preventing fraudulent access in a conditional access system |
| 05/16/2002 | WO2002039747A1 Counterfeit stb prevention through protocol switching |
| 05/16/2002 | WO2002039664A2 Elliptic curve scalar multiple calculation method and device, and storage medium |
| 05/16/2002 | WO2002039331A2 An information management system |
| 05/16/2002 | WO2002039222A2 System and method for managing trust between clients and servers |
| 05/16/2002 | WO2002013444A3 Trusted authentication digital signature (tads) system |
| 05/16/2002 | WO2001020431A3 Method, article and apparatus for registering registrants, such as voter registrants |
| 05/16/2002 | US20020059535 Wireless clock synchronization |
| 05/16/2002 | US20020059519 Transmitting apparatus, transmitting method, receiving apparatus, receiving method, transmitting and receiving system, and transmitting and receiving method |
| 05/16/2002 | US20020059437 Method and apparatus for processing subject name included in personal certificate |
| 05/16/2002 | US20020056747 Person authentication system, person authentication method, information processing apparatus, and program providing medium |
| 05/16/2002 | CA2428830A1 Counterfeit stb prevention through protocol switching |
| 05/15/2002 | EP1206066A2 Method for determining whether past digital signatures were issued by suspended certificates |
| 05/15/2002 | EP1205888A2 Certificate issuing method, system and computer readable storage medium |
| 05/15/2002 | EP1205071A1 Field programmable gate array with program encryption |
| 05/15/2002 | CN1349695A Method of ciphering daa transmission in a radio system |
| 05/15/2002 | CN1349182A Encipher decipher devices and device for producing expanded key, method and recording medium therefor |
| 05/14/2002 | US6389538 System for tracking end-user electronic content usage |
| 05/14/2002 | US6389536 Device for verifying use qualifications |
| 05/14/2002 | US6389403 Method and apparatus for uniquely identifying a customer purchase in an electronic distribution system |
| 05/14/2002 | US6389402 Systems and methods for secure transaction management and electronic rights protection |
| 05/10/2002 | WO2002037768A1 Communication system and communication control apparatus and method |
| 05/10/2002 | WO2002037747A1 Enciphering device and method, deciphering device and method, and storage medium |
| 05/10/2002 | WO2002037746A1 Content distribution system and content distribution method |
| 05/10/2002 | WO2002037494A1 Recording device and method, reproducing device and method, and storage medium |
| 05/10/2002 | WO2002037360A1 Content distribution system and content distribution method |
| 05/10/2002 | WO2002037242A2 Method and system for processing a request of a customer |
| 05/09/2002 | US20020055896 Facsimile apparatus and account-settling system using the same |
| 05/08/2002 | EP1204237A1 Encryption communication system |
| 05/08/2002 | EP1204054A2 Contents delivery method, and server, terminal and computer program therefor |
| 05/08/2002 | EP1203332A1 System and method for providing certification-related and other services |
| 05/08/2002 | EP0848316B1 System and method for secure information transmission over a network |
| 05/08/2002 | CN2490667Y Cipher anti-theft stopper with thread |
| 05/08/2002 | CN2490666Y Lead sealing with sign |
| 05/08/2002 | CN1348646A Method and device for effective key length control |
| 05/08/2002 | CN1348286A Radio communication system with radio chain-circuit control layer and data processing method |
| 05/08/2002 | CN1348136A Data enciphering method for dynamic cipher coding |
| 05/08/2002 | CN1348130A Secreting and/or discriminating documents remote-controlling printing |
| 05/08/2002 | CN1084563C Method of safely transmitting data for safety data exchange protocol |
| 05/08/2002 | CN1084495C 口令处理方法 Password processing method |
| 05/07/2002 | US6385726 Software license protection via cryptography |
| 05/07/2002 | US6385723 Key transformation unit for an IC card |
| 05/07/2002 | US6385614 Electronic bookshelf with multi-user features |
| 05/07/2002 | US6385318 Encrypting method, deciphering method and certifying method |
| 05/07/2002 | US6385316 Method and apparatus for encrypting data in a wireless communication system |
| 05/02/2002 | WO2002035764A2 Process and apparatus for improving the security of digital signatures |
| 05/02/2002 | WO2002035341A2 Method and system of using an insecure crypto-accelerator |
| 05/02/2002 | WO2001048594A3 Computer efficient linear feedback shift register |
| 05/02/2002 | US20020053028 Process and apparatus for improving the security of digital signatures and public key infrastructures for real-world applications |
| 05/02/2002 | US20020053024 Encrypted program distribution system using computer network |
| 05/02/2002 | US20020051536 Microprocessor with program and data protection function under multi-task environment |
| 05/02/2002 | US20020051535 Encryption key generation circuit |
| 05/02/2002 | EP1202488A2 Encryption sub-key generation circuit |
| 05/02/2002 | EP1202281A1 Semiconductor memory device internally provided with logic circuit which can be readily controlled and controlling method thereof |
| 05/02/2002 | EP1202208A1 Storage area dividing method for portable device |
| 05/02/2002 | EP1202175A2 System and method for distributed management of shared computers |
| 05/02/2002 | EP1202150A2 Microprocessor with program and data protection function under multi-task environment |
| 05/02/2002 | EP1201057A1 Method and device for guaranteeing the integrity and authenticity of a set of data |
| 05/02/2002 | EP1201056A1 A method for protecting a portable card |
| 05/02/2002 | EP0858697A4 Computerized payment system for purchasing goods and services on the internet |
| 05/02/2002 | EP0780039A4 Roving software license for a hardware agent |
| 05/02/2002 | CA2426865A1 Process and apparatus for improving the security of digital signatures and public key infrastructures for real-world applications |
| 05/01/2002 | CN1347607A Method and apparatus for generating encryption stream ciphers |
| 05/01/2002 | CN1347605A Key management for telephone calls to protect signaling and call packets between CTAs |
| 05/01/2002 | CN1347539A Communication system and method for efficiently implementing electronic transactions in mobile communication networks |
| 05/01/2002 | CN1347050A Encrypted file system, method for searching encrypted file, and computer readable medium |
| 05/01/2002 | CN1347049A Method and device for searching encrypted file, and computer readable recorded medium |