| 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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| 10/25/2002 | EP0732017A4 System and method for transmitting and receiving variable length authorization control for digital services |
| 10/24/2002 | WO2002084944A1 Methods and apparatus for efficient computation of one-way chains in cryptographic applications |
| 10/24/2002 | WO2002084662A1 Data transfer system, data transfer apparatus, data recording apparatis, and data trasfer method |
| 10/24/2002 | WO2002084526A2 Content recording/playback apparatus, and recording medium storing program for content recording/playback |
| 10/24/2002 | WO2002084447A2 Methods and apparatus for the interoperablility and manipulation of data in a computer network |
| 10/24/2002 | US20020157009 Method for obtaining a solution of an optimization problem |
| 10/24/2002 | US20020157006 Signature verifying method and its apparatus |
| 10/24/2002 | US20020156796 File conversion device |
| 10/24/2002 | US20020156691 Super distribution of music |
| 10/24/2002 | US20020154779 Data recording/reproducing device and saved data processing method, and program proving medium |
| 10/24/2002 | US20020154768 Generating RSA moduli including a predetermined portion |
| 10/24/2002 | US20020154767 Tamper resistance device |
| 10/24/2002 | CA2462895A1 Methods and apparatus for the interoperability and manipulation of data in a computer network |
| 10/23/2002 | EP1251699A1 Transmission and reception of television programmes and other data |
| 10/23/2002 | EP1251688A1 Downloading data |
| 10/23/2002 | EP1251421A2 Digital signature verifying method and apparatus |
| 10/23/2002 | EP1250684A1 Payment device and method for secure payment |
| 10/23/2002 | EP1250642A1 Random number generator |
| 10/23/2002 | EP1145483B1 Authenticating or signature method with reduced computations |
| 10/23/2002 | EP0953244B1 Constructing symmetric ciphers using the cast design procedure |
| 10/23/2002 | EP0923826B1 Device and method for the cryptographic processing of a digital data stream presenting any number of data |
| 10/23/2002 | CN1376282A Employing synthetic genes in gene algorithm, information encoding and non-replicative encryption |
| 10/23/2002 | CN1375805A Automatic English name-to-Chinese name converting method |
| 10/22/2002 | US6470086 Method and apparatus for effecting secure document format conversion |
| 10/22/2002 | US6470085 Application package and system for permitting a user to use distributed application package on the term of the use thereof |
| 10/22/2002 | CA2310418C Apparatus for multiprecision integer arithmetic |
| 10/22/2002 | CA2296602C Electronic bill presentment and payment system which deters cheating by employing hashes and digital signatures |
| 10/17/2002 | WO2002082715A1 Encrypting device |
| 10/17/2002 | WO2002082389A2 Extraction of a private datum to authenticate an integrated circuit |
| 10/17/2002 | WO2002082279A1 Data storage apparatus |
| 10/17/2002 | WO2002060112A3 Apparatus, method and system for multiple resolution affecting information access |
| 10/17/2002 | WO2002045378A3 Secure file transfer method and system |
| 10/17/2002 | US20020152389 Distributed digital signature generation method and digitally signed digital document generation method and apparatus |
| 10/17/2002 | US20020152252 Tamper-resistant modular multiplication method |
| 10/17/2002 | US20020152175 Methods and apparatus for the interoperablility and manipulation of data in a computer network |
| 10/17/2002 | US20020150277 Method and system for generating data of an application with a picture |
| 10/17/2002 | US20020150253 Methods and arrangements for protecting information in forwarded authentication messages |
| 10/16/2002 | EP1249983A2 Methods and arrangements for protecting information in forwarded authentication messages |
| 10/16/2002 | EP1249771A2 Large capacity data sales/mediation/purchase method, system, server, terminal and recording medium recording program thereof |
| 10/16/2002 | EP1249095A1 Method for issuing an electronic identity |
| 10/16/2002 | EP0996914B1 Electronic bill presentment and payment system which deters cheating by employing hashes and digital signatures |
| 10/16/2002 | EP0972406B1 Method and apparatus for preventing fraudulent access in a conditional access system |
| 10/15/2002 | US6466671 Smartcard for use with a receiver of encrypted broadcast signals, and receiver |
| 10/15/2002 | US6466669 Cipher processor, IC card and cipher processing method |
| 10/10/2002 | WO2002080064A1 Content distribution system |
| 10/10/2002 | WO2002079906A2 Content security layer providing long-term renewable security |
| 10/10/2002 | WO2002059724A3 Apparatus, method and system for tracking information access |
| 10/10/2002 | WO2000046946A3 Method, system, device for proving the authenticity of an entity and/or the integrity and/or the authenticity of a message |
| 10/10/2002 | US20020146117 Public-key cryptographic schemes secure against an adaptive chosen ciphertext attack in the standard model |
| 10/10/2002 | EP1145472A3 Method, system, device for proving the authenticity of an entity and/or the integrity and/or the authenticity of a message |
| 10/09/2002 | EP1248409A2 Attack-resistant cryptographic method and apparatus |
| 10/09/2002 | EP1247183A1 Accessing a secure resource using certificates bound with authentication information |
| 10/09/2002 | EP1010331B1 Method of and apparatus for transmitting data for interactive tv applications |
| 10/09/2002 | EP0847649B1 Method and apparatus for operating a transactional server in a proprietary database environment |
| 10/09/2002 | CN1373461A Encrypting-decrypting device for data storage |
| 10/09/2002 | CN1373460A Intelligent test and analysis method for fire-fighting facilities of building |
| 10/09/2002 | CN1092434C Method for sharing secret information, generating digital signature and performing certification, and communication system |
| 10/09/2002 | CN1092433C Cryptographic apparatus with double feedforward hash function |
| 10/08/2002 | US6463536 Data copyright management system |
| 10/08/2002 | US6463154 Method for determining temporary mobile identifiers and managing use thereof |
| 10/08/2002 | US6463150 Encryption device for information in binary code |
| 10/03/2002 | WO2002063462A3 Generating random data |
| 10/03/2002 | US20020144110 Method and apparatus for constructing digital certificates |
| 10/03/2002 | US20020141582 Content security layer providing long-term renewable security |
| 10/03/2002 | US20020141574 Data encryption methodology |
| 10/03/2002 | US20020141573 Data decryption methodology |
| 10/02/2002 | CN1372766A Counterfeit STB prevention through protocol switching |
| 10/02/2002 | CN1372739A 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 |
| 10/02/2002 | CN1372233A Speech sound identifying anti-counterfeit system |
| 10/02/2002 | CN1091911C Data transfer system and process for reloading the portable data carrier by means of the terminal |
| 10/01/2002 | US6460137 Encryption processing system |
| 10/01/2002 | US6459791 Public key cryptography method |
| 09/26/2002 | WO2002076084A2 Adding electronic signature to a report associated with an image file |
| 09/26/2002 | WO2002076060A2 Address mechanisms in internet protocol |
| 09/26/2002 | WO2002076013A1 Data access management system and management method using access control ticket |
| 09/26/2002 | WO2002076012A1 Memory access control system and management method using access control ticket |
| 09/26/2002 | WO2002075627A1 System for managing medical insurance using information communication network |
| 09/26/2002 | WO2002058453A3 Apparatus, method and system for effecting information access in a peer environment |
| 09/26/2002 | WO2002037768A8 Communication system and communication control apparatus and method |
| 09/26/2002 | WO2001046787A3 Method of authenticating users of software |
| 09/26/2002 | US20020138848 Service gateway for interactive television |
| 09/26/2002 | US20020138761 Authentication system |
| 09/26/2002 | US20020138735 System and method for message encryption and signing in a transaction processing system |
| 09/26/2002 | US20020138733 Information transaction system |
| 09/26/2002 | US20020138731 System for adding electronic signature to a report associated with an image file |
| 09/26/2002 | US20020138635 Multi-ISP controlled access to IP networks, based on third-party operated untrusted access stations |
| 09/26/2002 | US20020136405 Data recording device allowing obtaining of license administration information from license region |
| 09/26/2002 | US20020136403 Data decryption system |
| 09/26/2002 | US20020136402 Arithmetic processor |
| 09/26/2002 | DE10111987A1 Verfahren und Vorrichtung zum modularen Multiplizieren Method and Apparatus for modular multiplying |
| 09/25/2002 | EP1244306A2 Receiving controlled-access broadcast signals |
| 09/25/2002 | EP1244263A2 Access control method |
| 09/25/2002 | EP1244247A2 Key decrypting device |
| 09/25/2002 | EP1244077A2 Tamper resistant device |
| 09/25/2002 | EP1243999A2 Method and system for recovering and validating cryptographically signed digital data |
| 09/25/2002 | EP1242902A1 Employing synthetic genes in genetic algorithms, information encoding and non-replicative encryption |
| 09/25/2002 | EP1242855A1 Server for an electronic distribution system and method of operating same |
| 09/25/2002 | EP1203332A4 System and method for providing certification-related and other services |
| 09/25/2002 | EP0968608B1 Receiver/decoder and method of reception |
| 09/25/2002 | CN1371564A Modulated message authentication system and method |