| Patent application number | Description | Published |
|---|
| 20080278285 | RECORDING DEVICE - When a recording media | 11-13-2008 |
| 20090019551 | INFORMATION SECURITY DEVICE AND COUNTER CONTROL METHOD - A method is provided for flexibly setting a shared counter shared by a plurality of security modules sharing a counter in tree structures, while curbing the amount of secure memory used. The shared counter is realized by a first counter group having a tree structure managed by a first secure module and a second counter group having a tree structure managed by a second secure module sharing a node in the tree structure of the first counter group and a node in the tree structure of the second counter group. The method of sharing using tree structures enables flexibly addition, deletion and access restriction setting of modules that use the shared counter. | 01-15-2009 |
| 20090046862 | METHOD AND DEVICE FOR SPEEDING UP KEY USE IN KEY MANAGEMENT SOFTWARE WITH TREE STRUCTURE - In the key management software having a key database with a tree structure, a high-speed data encryption/decryption process is achieved by changing the tree structure without reducing the security strength when deleting or adding a key from/to the tree structure. The key management software | 02-19-2009 |
| 20090106832 | COMPUTER SYSTEM AND PROGRAM CREATING DEVICE - A mobile telephone | 04-23-2009 |
| 20090193521 | ELECTRONIC DEVICE, UPDATE SERVER DEVICE, KEY UPDATE DEVICE - The present invention offers an electronic device that reduces the amount of data for communication required when files pertaining to software are to be updated, as compared to the conventional devices, and performs tamper detection. The present invention is an electronic device having an application file pertaining to an operation of application software and updating the application file via a network. The electronic device (i) stores therein the application file including one or more data pieces, (ii) receives, from an external apparatus via the network, update data and location information indicating a location, within the application file, which is for rewrite with the update data, (iii) rewrites only part of the application file by writing over a data piece present at the indicated location with the update data, to update the application file, and (iv) examines whether the updated application file has been tampered with. | 07-30-2009 |
| 20090204806 | CERTIFYING DEVICE, VERIFYING DEVICE, VERIFYING SYSTEM, COMPUTER PROGRAM AND INTEGRATED CIRCUIT - An authentication system that can show having an authentic computer program, can certify the authenticity of itself, and can verify the certification. The authentication system is composed of a terminal (requesting device) and a card (verifying device). The card stores secret information to be used by the terminal, and an update program for the terminal. The card verifies authenticity of the terminal using information obtained from the terminal. When it judges that the terminal is authentic, the card outputs the secret information to the terminal. When it judges that the terminal is not authentic, the card outputs the update program. With this structure, the terminal is forced to update the program when it attempts to use the secret information. | 08-13-2009 |
| 20090268905 | ELECTRONIC DEVICE, CONTENT REPRODUCTION CONTROL METHOD, PROGRAM, STORAGE MEDIUM, AND INTEGRATED CIRCUIT - In order to play back a content while managing the right on use of the content, such as a total time of playback of the content, an electronic device stores right information in a right temporary storage unit | 10-29-2009 |
| 20090307783 | DATA PROCESSING DEVICE, METHOD, PROGRAM, INTEGRATED CIRCUIT, AND PROGRAM GENERATING DEVICE - A data processing apparatus controls execution of debugging of a program performed by a debugger. The program includes a verification value used for judgment on whether to permit the debugging, and an access control list that shows whether to permit an access to each of parts constituting the program. The data processing apparatus acquires a debugger ID of the debugger from the debugger, and the verification value and the access control list included in the program. The data processing apparatus judges whether to permit the debugging, according to the result of comparison between the debugger ID and the verification value. The data processing apparatus permits an access to a part of the program to be debugged when the access control list shows that the access is permitted. The data processing apparatus does not permit the access to the part when the access control list shows that the access is not permitted. | 12-10-2009 |
| 20090313425 | MEMORY CONTROL APPARATUS, CONTENT PLAYBACK APPARATUS, CONTROL METHOD AND RECORDING MEDIUM - A data storage apparatus is provided that realizes a measure against deterioration of a flash memory in which integrity check data is stored. A content playback apparatus ( | 12-17-2009 |
| 20090320110 | SECURE BOOT WITH OPTIONAL COMPONENTS METHOD - A method is executed which is for managing the optional trusted components that are active within a device, such that the device itself controls the availability of trusted components. The device includes: a storing unit which stores a plurality of pieces of software and a plurality of certificates; a receiving unit which receives the certificates; and a selecting unit which selects one of the certificates. The device further includes an executing unit which verifies an enabled one of the plurality of pieces of software using the selected and updated one of the certificates. | 12-24-2009 |
| 20100162352 | FALSIFICATION DETECTING SYSTEM, FALSIFICATION DETECTING METHOD, FALSIFICATION DETECTING PROGRAM, RECORDING MEDIUM, INTEGRATED CIRCUIT, AUTHENTICATION INFORMATION GENERATING DEVICE AND FALSIFICATION DETECTING DEVICE - A tamper detection device detects tampering with a program loaded to memory, at high speed and without compromising the safety. Prior to loading of a program, a dividing-size determining unit | 06-24-2010 |
| 20100174919 | PROGRAM EXECUTION APPARATUS, CONTROL METHOD, CONTROL PROGRAM, AND INTEGRATED CIRCUIT - Information processing apparatus | 07-08-2010 |
| 20100180346 | OBFUSCATION ASSISTING APARATUS - To provide, in order that proper obfuscation of a source code ( | 07-15-2010 |
| 20100185845 | SECURE BOOT TERMINAL, SECURE BOOT METHOD, SECURE BOOT PROGRAM, RECORDING MEDIUM, AND INTEGRATED CIRCUIT - A terminal that performs secure boot processing when booting, thereby booting reliably even if, during updating of a software module, the power is cut off or the update is otherwise interrupted. The terminal comprises a CPU, a software module storage unit, a certificate storage unit, an updating unit for updating the software module and certificate, a security device provided with a configuration information storage unit for storing the configuration information of the software module, an alternate configuration information storage unit for storing the configuration information of a software module in the configuration before the update, and a boot control unit for verifying and executing the software module by using the certificate. The terminal verifies the certificate of the software module by comparing the configuration information stored by the configuration information storage unit with the configuration information stored by the alternate configuration information storage unit. | 07-22-2010 |
| 20100229168 | DATA PROCESSING DEVICE, DATA PROCESSING METHOD, DATA PROCESSING PROGRAM, RECORDING MEDIUM, AND INTEGRATED CIRCUIT - When notifying virtual machines of a change to shared data, it is impossible to realize power saving for the apparatus if always notifying a virtual machine in the power-saving state. | 09-09-2010 |
| 20100268936 | INFORMATION SECURITY DEVICE AND INFORMATION SECURITY SYSTEM - Provided is a migration system considering security authentication levels and data protection strength levels of the both security devices between which data is migrated. | 10-21-2010 |
| 20100318781 | SECURE BOOT WITH OPTIONAL COMPONENTS METHOD - A method to allow a device to boot in a secure fashion, even though some of the components within the secure device's firmware may not be present, not correctly authorized, or not correctly operating. | 12-16-2010 |
| 20100322413 | ELECTRONIC DEVICE, CONTENT REPRODUCTION CONTROL METHOD, PROGRAM, STORAGE MEDIUM, AND INTEGRATED CIRCUIT - To play back a content while managing the right of use of the content, such as a total time of playback of the content, an electronic device stores right information in a right temporary storage unit | 12-23-2010 |
| 20100325628 | INFORMATION PROCESSING DEVICE - A terminal having a plurality of virtual machines in one-to-one correspondence with a plurality of stakeholders is enabled to activate in compliance with the trust dependency relation among the virtual machines and a virtual machine monitor. The terminal includes: the plurality of virtual machines in one-to-one correspondence with the plurality of stakeholders; a plurality of tamper-resistant modules in one-to-one correspondence with the virtual machines, and a management unit controlling the virtual machines and the tamper-resistant modules in mutually related manner. Each virtual machine securely boots with reference to a certificate having a trust dependency with one or other virtual machines. | 12-23-2010 |
| 20100332820 | INFORMATION SECURITY DEVICE AND INFORMATION SECURITY SYSTEM - The present invention provides a migration apparatus that realizes safe migration of data between devise that use different encryption algorithms and different security authentication levels. The fourth electronic terminal device | 12-30-2010 |
| 20110004771 | ELECTRONIC TERMINAL, CONTROL METHOD, COMPUTER PROGRAM AND INTEGRATED CIRCUIT - An electronic terminal performs early detection of unauthorized analysis thereon and prevents unauthorized acquisition and falsification of confidential information that is not to be released to a third party. The electronic terminal stores confidential information that is protected by consecutive application of a plurality of protection measures for defense against an attack from a third party. The electronic terminal monitors for attacks to the protection measures from an external source, and upon detecting an attack on one protection measure, updates a protection state of the confidential information to a new protection state in which either a new protection measure has been added to a protection path from the one attacked protection means to the confidential information, or the one protection measure on the path has been updated to a higher defense level. | 01-06-2011 |
| 20110066838 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM AND INTEGRATED CIRCUIT FOR THE REALIZATION THEREOF - The present invention provides an information processing apparatus that is capable of continuously performing secure boot between module groups in the case where software of a terminal device consists of module groups provided by a plurality of providers, while keeping independence between the providers. The information processing apparatus is provided with a linkage certificate that contains a first configuration comparison value | 03-17-2011 |
| 20110072266 | INFORMATION PROCESSING DEVICE, AUTHENTICATION SYSTEM, AUTHENTICATION DEVICE, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING PROGRAM, RECORDING MEDIUM, AND INTEGRATED CIRCUIT - The present invention provides an information processing device, an authentication system, etc. that save a server the trouble of updating a database, etc., even when a software module in a client device is updated, and that are capable of verifying whether software modules that have been started in the client device are valid. The terminal device A | 03-24-2011 |
| 20110081017 | KEY MIGRATION DEVICE - Provided is a key migration device which can securely and reliably control the migration of keys. A migration authority ( | 04-07-2011 |
| 20110099362 | INFORMATION PROCESSING DEVICE, ENCRYPTION KEY MANAGEMENT METHOD, COMPUTER PROGRAM AND INTEGRATED CIRCUIT - For the keys in a key tree group composed of root keys for each of multiple stakeholders, a shared key is generated between the multiple stakeholders, and access restrictions with respect to the generated shared key are flexibly set. A shared key control unit and a tamper-resistant module are provided for each of the multiple stakeholders. The shared key is set based on stakeholder dependency relationships. After the shared key is set, access to the shared key is controlled so that access is not possible by malicious stakeholders, so as to maintain the security level. | 04-28-2011 |
| 20110126284 | CONTENT REPRODUCTION DEVICE, CONTENT REPRODUCTION DEVICE CONTROL METHOD, CONTENT REPRODUCTION PROGRAM, RECORDING MEDIUM, AND INTEGRATED CIRCUIT - A content playback device of the present invention includes a playback unit | 05-26-2011 |
