| 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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| 10/20/2004 | EP1468521A2 A simple technique for implementing a cryptographic primitive using elementary register operations |
| 10/20/2004 | EP0966839B1 In-camera image marking and authentication |
| 10/20/2004 | CN1539226A 通信方法及通信系统 Communication method and communication system |
| 10/20/2004 | CN1539103A Method and device for modular multiplication |
| 10/20/2004 | CN1539098A Processing copy protection signals |
| 10/20/2004 | CN1538668A Network equipment and system for authentication and method thereof |
| 10/20/2004 | CN1172474C Public key cryptosystem method and apparatus |
| 10/20/2004 | CN1172244C Copyright protection syste, recording apparatus and decryption apparatus |
| 10/19/2004 | US6807365 Video data recording and reproducing apparatus, a video data reproducing apparatus, and a method of recording and reproducing video data with data modification detection |
| 10/14/2004 | WO2004088520A1 Secure network database system and information exchange method |
| 10/14/2004 | US20040205335 Home device authentication system and method |
| 10/14/2004 | US20040205330 System and method for compressing secure e-mail for exchange with a mobile data communication device |
| 10/14/2004 | US20040205211 Server, terminal control device and terminal authentication method |
| 10/14/2004 | US20040205113 Methods and apparatus for the interoperability and manipulation of data in a compuer network |
| 10/14/2004 | US20040202322 Protection of digital content using block cipher crytography |
| 10/14/2004 | US20040202297 Method for flexible charging of fees for services and resources in networks |
| 10/14/2004 | US20040201723 Image pickup apparatus and image data use system |
| 10/14/2004 | DE10315799A1 Message transmission method e.g. for e-business, by transmitting character sequence with reduced character content, e.g. using non-interchangeable combination of characters |
| 10/13/2004 | EP1467533A2 Home device authentication system and method |
| 10/13/2004 | EP1467320A2 Postage meter device and system and method for communications with postage meters |
| 10/13/2004 | EP1467297A1 Method of sending and validating documents |
| 10/13/2004 | EP1466448A2 Method and apparatus for integration of communication links with a remote direct memory access protocol |
| 10/13/2004 | EP1466250A2 Apparatus and method for reading or writing user data |
| 10/13/2004 | CN1537374A Providing position independent information bag routing select and secure network access for short-range wireless network environment |
| 10/13/2004 | CN1537294A Method and apparatus for establishing usage rights for digital content to be created in future |
| 10/13/2004 | CN1537261A Security system for preventing personal computer from being used by unauthorized people |
| 10/13/2004 | CN1536871A Image checking device and method |
| 10/13/2004 | CN1536861A XDSL test method |
| 10/13/2004 | CN1536810A Pseudo-random arragnement method for producing word formed from N digit figures |
| 10/13/2004 | CN1536769A Random sequence production equipment, encryption/deeneryption equipment and its method and program |
| 10/13/2004 | CN1536541A Transparent security voter's card |
| 10/13/2004 | CN1536498A 数据服务装置 Data service unit |
| 10/13/2004 | CN1171454C Method and apparatus for encrypted data stream transmission |
| 10/13/2004 | CN1171416C Modulated message anthentication system and method |
| 10/13/2004 | CN1171184C Method for authenticating a chip card in a message transmission network |
| 10/12/2004 | US6804354 Cryptographic isolator using multiplication |
| 10/07/2004 | WO2004086231A1 Information recording medium, information processing device, information processing method, and computer program |
| 10/07/2004 | US20040196981 Information processing device and method, information processing system, recording medium, and program |
| 10/07/2004 | US20040196976 Arithmetic device and encryption/decryption device |
| 10/07/2004 | US20040196975 Fully scalable encryption for scalable multimedia |
| 10/07/2004 | DE10008973B4 Autorisierungsverfahren mit Zertifikat Authorization procedures with certificate |
| 10/06/2004 | EP1465427A1 Fully scalable encryption for scalable multimedia |
| 10/06/2004 | EP1465057A2 Pseudo-random number generator with LFSR |
| 10/06/2004 | EP0830774B1 Internet server access control and monitoring systems |
| 10/06/2004 | CN1535015A Cipher programming cagable of complemently measuring of measurable multimedia |
| 10/06/2004 | CN1535013A Method of forming digital film content according to audience's tolerance standard |
| 10/06/2004 | CN1534922A Technology of forming encryption signature and using said signature accompanied with product copy |
| 10/06/2004 | CN1534491A 记录媒体装置和存取装置 Recording media device and the access device |
| 10/06/2004 | CN1534454A Pseudo-random number generator |
| 10/06/2004 | CN1534445A Method of cipher setting and safety identification |
| 10/06/2004 | CN1170227C Apparatus and method for protecting copyright data within computer system |
| 10/05/2004 | CA2171626C Access control system for restricting access to authorised hours and renewing it using a portable storage medium |
| 09/30/2004 | US20040194128 Method for providing digital cinema content based upon audience metrics |
| 09/30/2004 | US20040193987 Protection of software code from unauthorized use by executing portions of the code in a secure computer environment separate from the environment that executes the remaining portions of the code |
| 09/30/2004 | US20040193921 Systems and methods for authenticating a user to a web server |
| 09/30/2004 | US20040193904 Data protection system for removable recording medium |
| 09/30/2004 | US20040193903 Method for data protection for removable recording medium |
| 09/30/2004 | US20040193898 Encryption processing apparatus, encryption processing method, and computer program |
| 09/30/2004 | US20040193664 Pseudo-random number generator |
| 09/30/2004 | US20040193640 Methods and apparatus for the interoperability and manipulation of data in a computer network |
| 09/30/2004 | US20040192426 Information processor and information processing method for cooperative operation of job processor |
| 09/30/2004 | US20040190712 Method and apparatus for encrypting data in a wireless communication system |
| 09/29/2004 | EP1463317A2 Method for providing digital cinema content based upon audience metrics |
| 09/29/2004 | EP1461952A1 Partial encryption and pid mapping |
| 09/29/2004 | EP1461898A1 Method and device for anonymous signature with a shared private key |
| 09/29/2004 | EP1461892A1 Information content distribution based on privacy and/or personal information |
| 09/29/2004 | EP1461808A2 System, method, and device for playing back recorded audio, video or other content from non-volatile memory cards, compact disks or other media |
| 09/29/2004 | EP1461672A2 System and method for controlling distribution of digital copyrighted material |
| 09/29/2004 | CN1533657A Method and method for transmitting data from a first data network into a second data network |
| 09/29/2004 | CN1532747A Information processing device and method for working coodinated with processer |
| 09/29/2004 | CN1532662A Three dimension display method, program, recording medium, server device and and image filter |
| 09/28/2004 | US6799271 Method and system for authenticating user and providing service |
| 09/28/2004 | US6799032 Providing location data about a mobile entity |
| 09/28/2004 | CA2456496A1 Method for providing digital cinema content based upon audience metrics |
| 09/23/2004 | WO2004082206A1 Connection authentication in wireless communication network system |
| 09/23/2004 | WO2004081801A1 Information processing device, information processing method, and computer program |
| 09/23/2004 | WO2003081397A3 A method of protecting the integrity of a computer program |
| 09/23/2004 | US20040187002 Cross-site search method and cross-site search program |
| 09/23/2004 | US20040184609 Random sequence generating apparatus, encryption/decryption apparatus, random sequence generating method, encryption/decryption method and program |
| 09/23/2004 | US20040184602 Implementations of AES algorithm for reducing hardware with improved efficiency |
| 09/22/2004 | EP1459557A2 Increasing integrity of watermarks using robust features |
| 09/22/2004 | EP1459536A1 Data coding |
| 09/22/2004 | EP1459478A2 Synchronizing source and destination systems via parallel hash value determinations |
| 09/22/2004 | EP1459278A1 Encryption apparatus applying kasumi encryption algorithm |
| 09/22/2004 | EP1459227A2 Automated digital rights management and payment system with embedded content |
| 09/22/2004 | EP1459167A2 Pipelined core in montgomery multiplier |
| 09/22/2004 | CN1531799A Method and apparatus for encrypting content |
| 09/22/2004 | CN1531714A Transaction verification |
| 09/22/2004 | CN1531245A Server, terminal controller and terminal weight determiner |
| 09/22/2004 | CN1531244A Method and device for producing encrypted data stream code |
| 09/22/2004 | CN1531243A Digital signal generator, digital signal generating method |
| 09/22/2004 | CN1531241A Code reconfigurating method, diffusion code reconfigurating device and system |
| 09/22/2004 | CN1531240A Encrypted device for supporting multimode |
| 09/22/2004 | CN1530824A Device and method for carrying out montgomery mode multiply |
| 09/22/2004 | CN1168312C Method of processing encrypted video data for generating decrypted program data |
| 09/22/2004 | CN1168058C Data enciphering method for dynamic cipher coding |
| 09/22/2004 | CN1168011C Microprocessor arrangement having encoding function |
| 09/21/2004 | US6795921 Apparatus and method for translating with decoding function |
| 09/21/2004 | US6795917 Method for packet authentication in the presence of network address translations and protocol conversions |
| 09/21/2004 | CA2120889C Method and systems for non-program applications for subscriber television |