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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03/19/2003 | EP1293062A1 Method for secure biometric authentication/identification, biometric data input module and verification module |
03/19/2003 | EP1292883A1 Parallel modulo arithmetic using bitwise logical operations |
03/18/2003 | US6535858 Optical disc copy management system |
03/18/2003 | CA2260683C A method for generating psuedo random numbers |
03/13/2003 | WO2003021860A2 Method and apparatus for constructing digital certificates |
03/13/2003 | WO2003021401A2 A texturing system |
03/13/2003 | WO2002095543A3 Apparatus and method for providing secure network communication |
03/13/2003 | WO2002045370A3 Secure session management and authentication for web sites |
03/13/2003 | US20030051136 Multimedia coordination system |
03/13/2003 | US20030048903 Encryption secured against DPA |
03/13/2003 | US20030048898 Method of encrypting the data transmission in a data processing unit, particularly a smart card |
03/12/2003 | EP1292166A1 Mobile communication system |
03/12/2003 | EP1292082A2 Method and apparatus for establishing secure session |
03/12/2003 | EP1292064A1 Data storage apparatus |
03/12/2003 | EP1291763A1 Method of scrambling a calculation with a secret number |
03/12/2003 | EP1290647A1 Cryptography method and smart card microcircuit |
03/12/2003 | EP1290545A2 Cryptographic method and cryptographic device |
03/12/2003 | EP1290544A1 Pseudo-random number generator |
03/12/2003 | EP1290534A2 Method for biometric encryption of e-mail |
03/12/2003 | EP1208416A4 A technique for producing a parameter, such as a checksum, through a primitive that uses elementary register operations |
03/12/2003 | EP0966839A4 In-camera image marking and authentication |
03/12/2003 | CN1402848A Microprocessor arrangement having encoding function |
03/12/2003 | CN1402138A Copyright protection system, recording apparatus and decryption apparatus |
03/12/2003 | CN1402135A Automatic data archive system with safety certification testing data memory |
03/12/2003 | CN1103163C Apparatus for receiving, recording and reproducing data signals |
03/06/2003 | WO2003019899A2 Local digital network, methods for installing new devices and data broadcast and reception methods in such a network |
03/06/2003 | WO2003019857A1 Information providing system, information providing apparatus and method, and information processing apparatus and method |
03/06/2003 | WO2002101605A3 System and method for compressing secure e-mail for exchange with a mobile data communication device |
03/06/2003 | WO2002041504A3 Methods and apparatus for identifying asset location in communication networks |
03/06/2003 | WO2002039222A3 System and method for managing trust between clients and servers |
03/06/2003 | WO2002021761A3 Apparatus and method for selectively encrypting different the payload portion of multimedia data sent over a network |
03/06/2003 | WO2002012987A3 Systems and methods for authenticating a user to a web server |
03/06/2003 | WO2002001332A3 System and method for providing security to components using shared names |
03/06/2003 | US20030046580 Communication method and communication system |
03/06/2003 | US20030046571 Self-decoding type encrypted file and its utilization method |
03/06/2003 | US20030044014 Method for scrambling a calculation with a secret quantity |
03/06/2003 | US20030044008 Converter, encryption/decryption system, multi-stage converter, converting method, multi-stage converting method, program, and information recording medium |
03/06/2003 | US20030043402 System and method for providing secure value-added document network services |
03/05/2003 | EP1289186A2 Converter encryption/decryption system, multi-stage converter, converting method, multi-stage converting method, program, and information recording medium |
03/05/2003 | EP1288942A1 Copyright protection system, recording device, and reproduction device |
03/05/2003 | EP1288871A1 Authentic document and method of making |
03/05/2003 | EP1287655A2 Method for securing the authenticity of hardware and software in a network |
03/05/2003 | EP1287641A1 A method of validating an encrypted message |
03/05/2003 | EP1287639A2 End of message markers |
03/05/2003 | EP1287638A1 Decryption of cipher polynomials |
03/05/2003 | EP0976027B1 ARITHMETIC PROCESSOR combining finite field arithmetic and modular integer arithmetic |
03/05/2003 | EP0855052B1 Protection of software against use without permit |
03/05/2003 | CN1401172A Authentication method, communication apparatus, and relay apparatus |
03/05/2003 | CN1400572A Matric set for hand-written text |
03/05/2003 | CN1102776C Dynamic electronic cipher system |
03/04/2003 | US6530023 Method and device that validates time of an internal source using an external source |
03/04/2003 | US6530020 Group oriented public key encryption and key management system |
02/27/2003 | WO2003017273A1 Information recoring device, information reproducing device, information recoring method, information reproducing method, and computer program |
02/27/2003 | WO2003017213A1 Method for managing purchase of broadcast digital contents and means for downloading same |
02/27/2003 | US20030041262 Content protection system |
02/27/2003 | US20030041247 Accelerated signature verification on an elliptic curve |
02/27/2003 | US20030041242 Message authentication system and method |
02/27/2003 | US20030041241 Privacy data communication method |
02/27/2003 | US20030041195 Communication system and communication control apparatus and method |
02/27/2003 | US20030041034 Digital contents and system for receiving order for prints |
02/27/2003 | US20030039356 Encryption method, communication system, transmission device, and data input device |
02/26/2003 | EP1286315A1 Authentic document and method of making |
02/26/2003 | EP1286314A2 Bank note evaluation apparatus and bank note evaluation result data processing method |
02/26/2003 | EP1286312A2 Automobile data archive system having securely authenticated instrumentation data storage |
02/26/2003 | EP1286244A2 Paperless records in aircraft maintenance |
02/26/2003 | EP0968468B1 Computer memory organization and method therefor |
02/26/2003 | CN1399236A Digital gene coding-decoding anti-fake method and device |
02/26/2003 | CN1399235A Deciphering equipment with enciphering unit and message and its making process |
02/26/2003 | CN1102261C BCH signal encode, decode and multiple error-correcting device based on group transform method |
02/25/2003 | USRE38007 Controlled-access broadcast signal receiving system |
02/25/2003 | US6526509 Method for interchange of cryptographic codes between a first computer unit and a second computer unit |
02/25/2003 | US6526505 DES encryption system |
02/20/2003 | WO2003015357A1 Communication method and communication system |
02/20/2003 | US20030037264 Authentication processing system, authentiation processing method, authentication device, and computer program |
02/20/2003 | US20030037256 Counterfeit detecting program, method, and apparatus of digital data |
02/20/2003 | US20030037238 Paperless records in aircraft maintenance |
02/20/2003 | US20030036918 System and method for trusted self-billing and payment for utilities including audit, verification, reconciliation and dispute resolution |
02/20/2003 | US20030035542 Apparatus and method for securing communication information in CDMA communication system |
02/20/2003 | US20030035148 Authentic document and method of making |
02/20/2003 | US20030035147 Authentic document and method of making |
02/19/2003 | CN1398467A Linear transformation for symmetric-key ciphers |
02/19/2003 | CN1398122A Cryptographic equipment with double feed forward hash function |
02/19/2003 | CN1398099A Sound data transmitting system and method and transmitting servicer and user's terminal |
02/18/2003 | US6523117 System and method of online deciphering data on storage medium |
02/18/2003 | US6523115 Encryption device, decryption device, encryption method, decryption method, cryptography system, computer-readable recording medium storing encryption program, and computer-readable recording medium storing decryption program which perform error diagnosis |
02/18/2003 | US6522607 Recording device and method, decoding device and method, providing medium, and information recording medium |
02/13/2003 | WO2003013063A1 Method of creating a virtual private network using a public network |
02/13/2003 | WO2003012628A2 Method and apparatus for random bit-string generation utilizing environment sensors |
02/13/2003 | WO2002082389A3 Extraction of a private datum to authenticate an integrated circuit |
02/13/2003 | US20030033538 Bank note evaluation apparatus and bank note evaluation result data processing method |
02/13/2003 | US20030033340 Power-residue calculating unit concurrently referring to data for concurrent reference |
02/13/2003 | US20030031319 Data transfer system, data transfer apparatus, data recording apparatus, edit controlling method and data processing method |
02/13/2003 | US20030031153 Program control system, program control method and information control program |
02/12/2003 | EP1283616A2 Zero-knowledge proving system and method |
02/12/2003 | EP1282860A1 Secure dynamic link allocation system for mobile data communication |
02/12/2003 | EP0968607B1 Smartcard for use with a receiver of encrypted broadcast signals, and receiver |
02/12/2003 | CN1397124A Method for checking integrity of data, system and mobile terminal |
02/12/2003 | CN1397123A Data reproducing/recording apparatus, method and listupdating method |
02/12/2003 | CN1397045A 内容分发系统和内容分发方法 Content distribution systems and content distribution method |
02/12/2003 | CN1397036A Device authentication apparatus and method, and recorded medium on which device authentication program is recorded |