| 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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| 11/24/2004 | EP1479234A1 Method for processing encoded data for a first domain received in a network pertaining to a second domain |
| 11/24/2004 | EP1479002A2 On-line randomness test through overlapping word counts |
| 11/24/2004 | EP1479001A2 On-line randomness test for detecting irregular pattern |
| 11/24/2004 | EP1479000A2 Randomness test utilizing auto-correlation |
| 11/24/2004 | EP0950302A4 Public key cryptographic apparatus and method |
| 11/24/2004 | CN1177430C Countermeasure method using secret key cryptographic algorithm and electronic element and intelligent card utilizing the same method |
| 11/23/2004 | US6823069 Encrypting/decrypting system with programmable logic device/unit and method thereof |
| 11/23/2004 | US6820814 Countermeasure method in an electric component using a secret key cryptographic algorithm |
| 11/23/2004 | CA2353989C Secure system using continuously-changing features of a body part as a key |
| 11/18/2004 | WO2004012384A3 Apparatus and method for enctyption and decryption |
| 11/18/2004 | US20040230819 Magnetic disk apparatus, cipher processing method and program |
| 11/18/2004 | US20040230805 Secure communication with a keyboard or related device |
| 11/18/2004 | US20040230804 Digital signature generating apparatus, method, computer program and computer-readable storage medium |
| 11/18/2004 | US20040229614 Apparatus and method for processing data call in private wireless high-speed data system |
| 11/18/2004 | US20040229597 Performing authentication in a communications system |
| 11/18/2004 | US20040228486 System and method for copy protection for digital signals |
| 11/18/2004 | US20040228485 Method and apparatus for the generation of public key based on a user-defined ID in a cryptosystem |
| 11/17/2004 | EP1478204A2 Method and apparatus for performing authentication in a communications system |
| 11/17/2004 | EP1478121A2 Method and apparatus for ID-based public key generation |
| 11/17/2004 | EP1477881A2 Method and apparatus for data processing |
| 11/17/2004 | EP1477879A2 Tying a digital license to a user and tying the user to multiple computing devices in a digital rights management (DRM) system |
| 11/17/2004 | EP1138143B1 A method for optimizing of data transmission |
| 11/17/2004 | CN1547836A Local digital network, methods for installing new devices and data broadcast and reception methods in such a network |
| 11/17/2004 | CN1547826A Method for creating a virtual private network through a public network |
| 11/17/2004 | CN1547693A Electronic vouchers and a system and method for issuing the same |
| 11/16/2004 | US6819764 Data processor, communication system and recording medium |
| 11/16/2004 | US6817535 Usage dependent ticket to protect copy-protected material |
| 11/11/2004 | WO2004098122A1 Image recording system and image recording apparatus |
| 11/11/2004 | WO2003093959A3 Secure transmission and installation of an application |
| 11/11/2004 | US20040225611 System and method for controlling distribution and use of digital works using price specifications |
| 11/11/2004 | US20040224771 Web access to secure data |
| 11/11/2004 | US20040223609 Data encryption method |
| 11/11/2004 | US20040223608 Cryptosystem for data security |
| 11/11/2004 | DE102004019679A1 Datenaufzeichnungsgerät und Verfahren des Identifizierens von Daten Data recording apparatus and method of identifying data |
| 11/10/2004 | EP1475938A2 Web access to secure data |
| 11/10/2004 | EP1475775A2 Music-content using apparatus capable of managing copying of music content |
| 11/10/2004 | EP1474925A1 Method for controlling the billing of a broadcast service by units of time |
| 11/10/2004 | EP1474761A2 Efficient storage of fingerprints |
| 11/10/2004 | EP1474741A2 System and method for calculating a result from a division |
| 11/10/2004 | EP1129542A4 Method and apparatus for secure digital chaotic communication |
| 11/10/2004 | EP0920753A4 Public key cryptosystem method and apparatus |
| 11/10/2004 | CN1545661A Information processing device and method, information processing system, recording medium, and program |
| 11/10/2004 | CN1545659A Apparatus and method for information processing, and program |
| 11/10/2004 | CN1175615C Process for security policy agreement between a first computer unit and a second computer unit |
| 11/09/2004 | US6816971 Signature process |
| 11/09/2004 | US6816969 Digital signature generating method and digital signature verifying method |
| 11/09/2004 | US6816595 Mini time key creation method and system |
| 11/09/2004 | CA2466462A1 Method and apparatus for the generation of public key based on a user-defined id in a cryptosystem |
| 11/04/2004 | WO2003084257A8 Method and system for re-authentication in ip multimedia core network system (ims) |
| 11/04/2004 | US20040221167 Texturing system |
| 11/04/2004 | US20040220989 Method of and apparatus for modular multiplication |
| 11/04/2004 | US20040220880 System for controlling the distribution and use of digital works using digital tickets |
| 11/04/2004 | US20040220879 System and method for controlling the use and duplication of digital content distributed on removable media |
| 11/04/2004 | US20040218906 System and method for copy protection for digital signals |
| 11/04/2004 | US20040218700 Digital implementation of multi-channel demodulators |
| 11/04/2004 | US20040218035 Mixed-media telecommunication call set-up |
| 11/03/2004 | EP1473615A2 Secure communication with a keyboard or related device |
| 11/03/2004 | EP1472613A1 Credential management and network querying |
| 11/03/2004 | CN1543259A Apparatus and method for processing data call in private wireless high-speed data system |
| 11/03/2004 | CN1543115A A method for preventing network address translation (NAT) device from being attacked by network user |
| 11/03/2004 | CN1542645A Application authentication system, secure device, and terminal device |
| 11/03/2004 | CN1542582A Tying a digital license to a user and tying the user to multiple computing devices in a digital rights management (DRM) system |
| 11/03/2004 | CN1174578C Process for data certification by scrambling and certification system using such process |
| 11/03/2004 | CN1174325C Data selling/mediating/purchasing method, system, server, and terminal |
| 11/02/2004 | US6813709 Method and apparatus for recorded digital data protection via media volume |
| 10/28/2004 | WO2004093372A2 Protection of digital content using block cipher cryptography |
| 10/28/2004 | WO2004093073A1 Digital data storage/reproduction method and device |
| 10/28/2004 | US20040215970 Data recording apparatus and method of identifying data |
| 10/28/2004 | US20040215686 Montgomery modular multiplier and method thereof using carry save addition |
| 10/28/2004 | US20040213407 Seed generating circuit, random number generating circuit, semiconductor integrated circuit, IC card, and information terminal equipment |
| 10/27/2004 | EP1471743A1 Streaming system for distributing encrypted compressed image data and streaming method thereof |
| 10/27/2004 | EP1471522A1 Reproduction control method, program, and recording medium |
| 10/27/2004 | EP1471486A2 Time based encryption algorithm |
| 10/27/2004 | EP1471485A1 Apparatus and method for coding and decoding of a number and/or letter code |
| 10/27/2004 | EP1471420A2 Montgomery modular multiplier and method thereof using carry save addition |
| 10/27/2004 | EP1470722A1 Device that is used for secure diffusion, controlled display, private copying and management of, and conditional access to, mpeg-4-type audiovisual content rights |
| 10/27/2004 | EP1470497A1 Method and system for the information protection of digital content |
| 10/27/2004 | EP0872080A4 Multi-step digital signature method and system |
| 10/27/2004 | CN1541391A System, method, and device for playing back recorded audio, video or other content from non-volatile memory cards, compact disks or other media |
| 10/27/2004 | CN1540917A Pseudo-random squence generator and associated method |
| 10/27/2004 | CN1540622A Music content applicator able to manage copy for music content |
| 10/27/2004 | CN1173311C Anti-fake method by using liquid crystal material |
| 10/26/2004 | US6810122 Secret sharing system and storage medium |
| 10/26/2004 | CA2343805C Method of improving security in electronic transactions |
| 10/26/2004 | CA2337035C Method of transmitting information data from a sender to a receiver via a transcoder, method of transcoding information data, method for receiving transcoded information data, sender, transcoder and receiver |
| 10/21/2004 | WO2004091210A1 Moving picture processing device, information processing device, and program thereof |
| 10/21/2004 | WO2004091202A1 Moving picture processing device, information processing device, and program thereof |
| 10/21/2004 | WO2004091201A1 Moving picture processing device, information processing device, and program thereof |
| 10/21/2004 | WO2004091166A1 Apparatuses, methods and computer software productus for judging the validity of a server certificate |
| 10/21/2004 | WO2004090840A1 Information inputting system with a variable arrangement of keypad, and control method thereof |
| 10/21/2004 | WO2004071106A3 Method for storing and transmitting data generated by a security module |
| 10/21/2004 | US20040210821 Method and system for secure distribution of digital documents |
| 10/21/2004 | US20040210614 Hardware implementation for modular multiplication using a plurality of almost entirely identical processor elements |
| 10/21/2004 | US20040210539 Music-content using apparatus capable of managing copying of music content, and program therefor |
| 10/21/2004 | US20040208321 Method for the generation of pseudo-random permutation of an N-digit word |
| 10/21/2004 | US20040208317 Encrypting device, decrypting device, cryptosystem including the same devices, encrypting method, and decrypting method |
| 10/21/2004 | CA2513434A1 Communication apparatus, certificate issuing apparatus, and communication system |
| 10/20/2004 | EP1469631A1 Network device and system for authentication and method thereof |
| 10/20/2004 | EP1469426A2 Postage meter device and system and method for communications with postage meters |
| 10/20/2004 | EP1468521A4 A simple technique for implementing a cryptographic primitive using elementary register operations |