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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10/19/2000 | WO2000062477A1 Authentication and signature method for messages using reduced size of binary units of information content and corresponding systems |
10/19/2000 | WO2000062473A1 Method for making secure one or several computer installations using a common cryptographic secret key algorithm, use of the method and computer installation |
10/19/2000 | WO2000062260A1 Method and system for ordering, loading and using access tickets |
10/19/2000 | WO2000062217A1 Information processing device and method, and providing medium |
10/19/2000 | WO2000062215A1 Information processing device and method, and providing medium |
10/19/2000 | CA2369733A1 Method of and apparatus for providing secure communication of digital data between devices |
10/18/2000 | EP1045585A1 Method of and apparatus for providing secure communication of digital data between devices |
10/18/2000 | EP1045574A1 Method and apparatus for sending or receiving a secure fax |
10/18/2000 | EP1045321A2 Information processing apparatus and method, management apparatus and method, and providing medium |
10/18/2000 | EP1044433A1 Method and system for controlling access to a resource limited to certain time frames |
10/18/2000 | EP1044405A1 Power signature attack resistant cryptography |
10/18/2000 | CN1270452A Method and system based on station arrangement for convenient bidirectional mobile communication equipment |
10/17/2000 | CA2227203C An electronic lottery system and its operating method and computer-readable recording medium in which the electronic lottery program code is stored |
10/12/2000 | WO2000060551A1 Method of deriving an identification number |
10/12/2000 | WO2000027090A3 Network protocol for secure communications |
10/11/2000 | EP1043906A2 Method and system facilitating web based provisioning of two-way mobile communications devices |
10/11/2000 | EP1043878A2 Information processing apparatus and method, information management apparatus and method and information providing medium |
10/11/2000 | EP1043863A1 Method for the cryptographic conversion of l-bit input blocks of digital data into l-bit output blocks |
10/11/2000 | EP1043693A2 Authorization system and authorization method |
10/11/2000 | EP1043654A2 Apparatus and method for generating parameters for finite field operations |
10/11/2000 | EP1042885A1 Client side public key authentication method and apparatus with short-lived certificates |
10/11/2000 | EP1042882A1 Method for strongly authenticating another process in a different address space |
10/11/2000 | EP1020049A4 Tamper resistant methods and apparatus |
10/11/2000 | CN1269935A Data dissemination system for computer network |
10/11/2000 | CN1269549A System and method for operating computer documents and/or programme |
10/10/2000 | US6131165 Permit for controlling access to services in protected memory systems |
10/05/2000 | WO2000059177A1 Server computer for guaranteeing files integrity |
10/05/2000 | WO2000059157A1 Countermeasure method in an electric component implementing an elliptical curve type public key cryptography algorithm |
10/05/2000 | WO2000059156A1 Countermeasure procedures in an electronic component implementing an elliptical curve type public key encryption algorithm |
10/05/2000 | WO2000059153A2 Duty cycle corrector for a random number generator |
10/05/2000 | WO2000058962A1 Usage dependent ticket to protect copy-protected material |
10/05/2000 | WO2000027086A3 Network protocol for secure communications |
10/05/2000 | DE19914407A1 Method for deriving identification numbers converts a customer's personal data into a binary number of a set bit length with the help of a secret key. |
10/04/2000 | EP1041823A2 Content distribution apparatus, content receiving apparatus, and content distribution method |
10/04/2000 | EP1041767A2 Authentication of electronic data |
10/04/2000 | EP1041481A2 Data interchange method and system |
10/04/2000 | EP1040620A1 Method for making secure the transmission of a message from a transmitting device to a receiving device |
10/04/2000 | EP1040619A1 Device for authenticating digital images |
10/04/2000 | EP1040617A1 An improved des encryption and decryption system and method |
10/04/2000 | EP1040439A1 Portable 1-way wireless financial messaging unit |
10/04/2000 | EP1040402A1 Data processing device with means for counteracting analysis methods for the detection of a secret characteristic value |
10/03/2000 | US6128736 Method for inserting a watermark signal into data |
09/28/2000 | WO2000057613A1 Method and apparatus for secure data transmission system |
09/27/2000 | EP1039741A2 Health care system using data authentication |
09/27/2000 | EP1038371A1 Transformation methods for optimizing elliptic curve cryptographic computations |
09/27/2000 | CN1267856A Digital data document encrypting apparatus and method, and recording medium of encrypted programme |
09/21/2000 | WO2000056007A1 Method for verifying a message signature |
09/21/2000 | WO2000055861A1 A method and system for providing copy-protection on a storage medium and storage medium for use in such a system |
09/21/2000 | WO1998043172A3 Access control system |
09/20/2000 | EP1037425A2 Apparatus and method for integrating error control and authentication for satellite uplinks |
09/20/2000 | EP1036460A2 A method for packet authentication in the presence of network address translations and protocol conversions |
09/20/2000 | EP1036372A1 A remotely accessible private space using a fingerprint |
09/20/2000 | EP0760987B1 Method of verifying the integrity of data stored on a processing facility used for processing sheet-like articles such as bank notes or bills |
09/20/2000 | EP0694232A4 Method for data compression |
09/20/2000 | CN1267177A Digital portable mobile telephone set and method for voice data input/output and storage/regeneration |
09/20/2000 | CN1267167A Electronic assets use system and method, server, and recording medium comprising said method |
09/19/2000 | US6122374 Method of reading a service card |
09/14/2000 | WO2000054456A1 Method of ciphering data transmission in a radio system |
09/14/2000 | WO2000054455A1 Voice and data encryption method using a cryptographic key split combiner |
09/14/2000 | WO2000054454A1 Countermeasure method in an electronic component using a secret key cryptographic algorithm |
09/14/2000 | WO2000054125A1 Computing apparatus and methods using secure authentication arrangement |
09/13/2000 | EP1034648A1 Method and apparatus for use of a watermark and a receiver dependent reference for the purpose of copy protection |
09/13/2000 | EP1034638A1 Data dissemination system for computer networks |
09/13/2000 | EP1034517A1 Method for managing data in a smart card |
09/13/2000 | EP1034467A2 Method and apparatus for viewing electronic reading materials |
09/13/2000 | CN1266573A System for generating electronic signatures in absolute security |
09/13/2000 | CN1266567A Data scrambling system and communications system incorporating same |
09/13/2000 | CN1266520A Secure transaction system |
09/13/2000 | CN1266240A Method and system for realizing bank card deal |
09/12/2000 | US6119234 Method and apparatus for client-host communication over a computer network |
09/12/2000 | US6119228 Method for securely communicating remote control commands in a computer network |
09/12/2000 | US6118874 Encrypted data recovery method using split storage key and system thereof |
09/08/2000 | WO2000052866A2 Portable electronic charge and authorization devices and methods therefor |
09/06/2000 | EP1033009A1 Masked digital signatures |
09/06/2000 | EP1032873A1 Apparatus for multiprecision integer arithmetic |
09/06/2000 | CN1265807A Global conditioner access system for broadcast services |
09/05/2000 | CA2173018C Method of manufacturing secure boxes in a key management system |
08/30/2000 | EP1031909A2 A system and method for manipulating a computer file and/or program |
08/30/2000 | EP1031908A2 Method and apparatus for creating, supporting, and using travelling programs |
08/30/2000 | EP1031207A1 Apparatus, and associated method, for generating a pseudo-random number |
08/30/2000 | EP1031205A1 Method for identifying proprietary data of traitors |
08/30/2000 | EP1031204A2 Cryptographic system and method with fast decryption |
08/30/2000 | CN2393757Y Theftproof device of automobile |
08/29/2000 | US6111952 Asymmetrical cryptographic communication method and portable object therefore |
08/24/2000 | WO2000049797A1 Authentication and verification within a digital camera architecture |
08/24/2000 | WO2000049765A2 Method for countermeasure in an electronic component using a secret key algorithm |
08/23/2000 | EP1030272A2 Electronic asset utilization system, electronic asset utilization method, server for use with electronic asset utilization system, and recording medium having recorded thereon electronic asset utilization method |
08/22/2000 | US6108791 Password processing apparatus and method |
08/22/2000 | US6108787 Method and means for interconnecting different security level networks |
08/22/2000 | US6108421 Method and apparatus for data encryption |
08/22/2000 | US6105864 Terminal device and terminal system |
08/22/2000 | US6105862 Method for performing a double-signature secure electronic transaction |
08/17/2000 | WO2000048399A1 System for automated comprehensive remote servicing for media information |
08/17/2000 | WO2000048375A1 Media distribution system |
08/17/2000 | WO2000048355A2 Method for verifying the use of public keys generated by an on-board system |
08/17/2000 | WO2000048108A1 System and method for providing certification-related and other services |
08/17/2000 | WO2000048060A1 Method for securing access to a data processing device and appropriate device |
08/17/2000 | WO2000011828A9 Time-stamping with binary linking schemes |
08/17/2000 | CA2398323A1 Method for safeguarding the access to a data processing apparatus and corresponding arrangement |
08/17/2000 | CA2371791A1 System and method for providing certification-related and other services |