| 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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| 03/14/2002 | US20020032856 Electronic contents proving method and system, and storage medium for storing program therefor |
| 03/14/2002 | US20020032855 Providing secure network access for short-range wireless computing devices |
| 03/14/2002 | US20020032853 Secure dynamic link allocation system for mobile data communication |
| 03/14/2002 | US20020032711 Multiplication module, multiplicative inverse arithmetic circuit, multiplicative inverse arithmetic control method, apparatus employing multiplicative inverse arithmetic circuit, and cryptographic apparatus and error correction decoder therefor |
| 03/14/2002 | US20020032658 System and method of online deciphering data on storage medium |
| 03/14/2002 | US20020030907 Information signal recording/reproducing system, information signal recording device, information signal reproducing device and information signal recording/reproducing process |
| 03/13/2002 | EP1187350A2 Information exhange apparatus and information exchanging method |
| 03/13/2002 | EP1186193A1 Method and system for verifying the authenticity of a first communication participants in a communications network |
| 03/13/2002 | CN1080964C Apapratus and method for storing data |
| 03/12/2002 | US6357005 System for the secure CD-ROM storage of data |
| 03/07/2002 | WO2002019094A1 Speed enhanced cryptographic method and apparatus |
| 03/07/2002 | US20020027990 Signal transmision method |
| 03/07/2002 | US20020027987 Substitution-box for symmetric-key ciphers |
| 03/07/2002 | US20020027494 Person authentication system, person authentication method, and program providing medium |
| 03/07/2002 | CA2420359A1 Speed enhanced cryptographic method and apparatus |
| 03/06/2002 | EP1185027A2 Certificate validity authentication method and apparatus |
| 03/06/2002 | EP1185025A1 Undeniable digital signature scheme based on quadratic field |
| 03/06/2002 | EP1185023A1 Information recording/reproducing apparatus and method |
| 03/06/2002 | EP1183819A1 Multiple number base encoder/decoder using corresponding xor |
| 03/06/2002 | EP1183817A2 Information encryption system and method |
| 03/06/2002 | CN1338698A Data processing system, data processing method, data processing apparatus and program provided media |
| 03/06/2002 | CN1338697A Data processing system, data processing method, data processing device, permission system and program provided media |
| 03/06/2002 | CN1338696A Data process system, data process method and media providing program |
| 03/06/2002 | CN1080498C Identification number issuing device and identification number verification device |
| 03/06/2002 | CN1080497C Encoding device |
| 03/06/2002 | CN1080496C Crytographic receiver |
| 03/05/2002 | US6353888 Access rights authentication apparatus |
| 03/05/2002 | US6353672 Steganography using dynamic codes |
| 02/28/2002 | WO2002017635A2 Transmitting and processing protected content in a conditional access system |
| 02/28/2002 | WO2002017048A2 Trusted device |
| 02/28/2002 | WO2001088693A3 Cryptographic method and cryptographic device |
| 02/28/2002 | WO2001078024A3 An improved method and system for conducting secure payments over a computer network |
| 02/28/2002 | WO2000049765A3 Method for countermeasure in an electronic component using a secret key algorithm |
| 02/28/2002 | US20020026584 Method for signing documents using a PC and a personal terminal device |
| 02/28/2002 | US20020026582 Person authentication system, person authentication method and program providing medium |
| 02/28/2002 | US20020026581 Content distribution system, a content distribution method, an information processing apparatus, and a program providing medium |
| 02/28/2002 | US20020026577 Person authentication system, person authentication method, information processing apparatus, and program providing medium |
| 02/28/2002 | US20020026574 Person authentication system, person authentication method , information processing apparatus, and program providing medium |
| 02/28/2002 | US20020026427 Person authentication application data processing system, person authentication application data processing method, information processing apparatus, and program providing medium |
| 02/28/2002 | US20020026415 Charging system and charging method |
| 02/28/2002 | US20020026414 Authentication method, authentication system, payment system, user apparatus and recording medium containing program for conducting authentication |
| 02/28/2002 | US20020025037 Encryption/decryption apparatus, authenticating apparatus, program and method |
| 02/28/2002 | US20020025036 Modem device, data communications system, method of and device for protecting data, and computer product |
| 02/28/2002 | US20020025035 Enhanced block ciphers with data-dependent rotations |
| 02/28/2002 | US20020024070 Integrated circuit with protection device |
| 02/28/2002 | CA2420795A1 Transmitting and processing protected content |
| 02/27/2002 | EP1182874A1 Digital content protection system |
| 02/27/2002 | EP1004101B1 Terminal and system for implementing secure electronic transactions |
| 02/27/2002 | CN1338166A Public and private key cryptographic method |
| 02/27/2002 | CN1337624A Method and apparatus for protecting copyright data in computer system |
| 02/26/2002 | US6351814 Field programmable gate array with program encryption |
| 02/26/2002 | US6351467 System and method for multicasting multimedia content |
| 02/26/2002 | CA2246421C Apparatus for operating bivector and encrypting system including the same |
| 02/21/2002 | WO2002015512A2 A method and an apparatus for granting use of a session of a packet data transmission standard designated by an identifier |
| 02/21/2002 | WO2002015466A1 Securing arbitrary communication services |
| 02/21/2002 | WO2000045273A9 Authentication enforcement using decryption and authentication in a single transaction in a secure microprocessor |
| 02/21/2002 | US20020023224 Computer software installation |
| 02/21/2002 | US20020023223 Authorization process using a certificate |
| 02/21/2002 | US20020023221 Method and system for recovering the validity of cryptographically signed digital data |
| 02/21/2002 | US20020023217 Manufacturing unique devices that generate digital signatures |
| 02/21/2002 | US20020023216 Ad-hoc radio communication verification system |
| 02/21/2002 | US20020023121 Information exchange apparatus and information exchanging method |
| 02/21/2002 | US20020021802 Encryption apparatus, decryption appatatus, expanded key generating apparatus and method therefor, and recording medium |
| 02/20/2002 | EP1180315A1 Integrity protection method for radio network signaling |
| 02/20/2002 | EP1027784B1 Method for digital signing of a message |
| 02/20/2002 | CN2477477Y Anti-frau antitheft multifunctional license plate of motor vehicle |
| 02/20/2002 | CN1337125A Method for implementing multipoint codes in an exchange |
| 02/19/2002 | US6349318 Arithmetic processor for finite field and module integer arithmetic operations |
| 02/19/2002 | CA2165103C Method for preventing monitoring of data remotely sent from a metering accounting vault to digital printer |
| 02/14/2002 | WO2002013455A1 Person-centric account-based digital signature system |
| 02/14/2002 | WO2002013452A2 Linear transformation for symmetric-key ciphers |
| 02/14/2002 | WO2002013445A2 Linking public key of device to information during manufacture |
| 02/14/2002 | WO2002013444A2 Trusted authentication digital signature (tads) system |
| 02/14/2002 | WO2002013435A1 Method and system for using electronic communications for an electronic contact |
| 02/14/2002 | WO2002013434A1 Method and apparatus for access authentication entity |
| 02/14/2002 | WO2002013116A1 Entity authentication in electronic communications by providing verification status of device |
| 02/14/2002 | WO2002012987A2 Systems and methods for authenticating a user to a web server |
| 02/14/2002 | US20020019935 Encrypting file system and method |
| 02/14/2002 | US20020019934 Encryption and decryption apparatuses, methods, and computer program products |
| 02/14/2002 | US20020019813 Information processing apparatus, information processing system, information processing method, and storage medium therefor |
| 02/14/2002 | US20020018572 Methods for detecting alteration of audio |
| 02/14/2002 | US20020018566 Apparatus and method for disribution of contents |
| 02/14/2002 | US20020018562 Key scheduler for encryption apparatus using data encryption standard algorithm |
| 02/14/2002 | CA2418050A1 Linking public key of device to information during manufacture |
| 02/14/2002 | CA2417922A1 Person-centric account-based digital signature system |
| 02/14/2002 | CA2417916A1 Method and apparatus for access authentication entity |
| 02/14/2002 | CA2417901A1 Entity authentication in electronic communications by providing verification status of device |
| 02/14/2002 | CA2415868A1 Systems and methods for authenticating a user to a web server |
| 02/13/2002 | EP1179243A1 Cryptographic engine using base conversion, logic operations and prng in data arrays to increase dispersion in ciphertext |
| 02/13/2002 | EP0768601B1 Device for executing enciphered program |
| 02/13/2002 | CN1336083A Security module, security system and mobile station |
| 02/12/2002 | US6347145 Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keys |
| 02/12/2002 | US6347144 Copy prevention method and apparatus for digital video system |
| 02/12/2002 | US6347143 Cryptographic device with encryption blocks connected parallel |
| 02/07/2002 | WO2002011469A2 Techniques for performing umts-authentication using sip (session initiation protocol) messages |
| 02/07/2002 | WO2002011360A2 Cryptography private key storage and recovery method and apparatus |
| 02/07/2002 | WO2002011025A2 System and method for verifying delivery and integrity of electronic message |
| 02/07/2002 | WO2001033766A3 Random number generation for encrypting cellular communications |
| 02/07/2002 | US20020016919 Media content protection utilizing public key cryptography |
| 02/07/2002 | US20020016914 Encryption control apparatus |