Patent application number | Description | Published |
20100122080 | PSEUDONYM CERTIFICATE PROCESS SYSTEM BY SPLITTING AUTHORITY - The present invention can't independently know real name information of a user unless a server of an authority treating real name certificate and a server of an authority treating pseudonym certificate collaborate mutually, so that privacy of a user isn't infringed. The present invention can acquire real name information of a user with collaboration of real name certification sever and pseudonym certification sever only if you need real name information for a user. | 05-13-2010 |
20100138929 | CONDITIONALLY TRACEABLE ANONYMOUS SERVICE SYSTEM - Conditionally traceable anonymous service system is provided. The system respectively separates subject conforming real name, subject conforming anonymity, subject requesting verification for an anonymity certification means, so that privacy of a user is hardly violated, the present invention can acquire real name information for the user only when a trace for a user is surely requested. | 06-03-2010 |
20100146603 | ANONYMOUS AUTHENTICATION-BASED PRIVATE INFORMATION MANAGEMENT SYSTEM AND METHOD - An anonymous authentication-based private information management (PIM) system and method are provided. The PIM method includes receiving an anonymous certificate not including user information from an anonymous certification authority; generating an anonymous document including the anonymous certificate and some of the user information; and providing the anonymous document to a web service provider so as to be authenticated and thus provided with a web service by the web service provider. Thus, only a minimum of user information may be provided to the web service provider. In addition, it is possible to strengthen a user's right to self-determination and control over the exposure and use of his or her personal information by allowing a user to manage his or her own personal information or entrusting the PIM server to manage user information. Moreover, it is possible to protect the privacy of a user by preventing the exposure of user information. | 06-10-2010 |
20100161970 | USER TERMINAL AND METHOD OF MANAGING USER INFORMATION - A user terminal and a method of managing user information are provided. The method includes issuing a request for issuance of a certificate for a user to a certification authority; generating a document including at least part of user information using a certificate issued by the certification authority; and issuing a subscription request to a desired web service provider by providing the document including the at least part of the user information to the desired web service provider. Therefore, it is possible to strengthen the user's right to self-determination and control over the exposure and use of his or her personal information. In addition, it is possible to improve the reliability of user information provided to each website by the user. | 06-24-2010 |
20110154045 | ANONYMOUS AUTHENTICATION SERVICE METHOD FOR PROVIDING LOCAL LINKABILITY - There is provided an anonymous service method of providing local linkability. The anonymous service method providing local linkability according to exemplary embodiments of the invention, an anonymous authentication operation based on a short group signature is performed, for which the concept of a local linkability is introduced to secure linkability within the same service domain. Namely, in the interior of a service provider, a virtual index having a fixed value is calculated for each service user, and in this case, although a plurality of service providers collude with each other, they cannot calculate a virtual index having the same value, whereby the linkability can be secured within the same service domain but not within the interiors of different service domains. | 06-23-2011 |
20120099726 | CONTENT PROTECTION APPARATUS AND METHOD USING BINDING OF ADDITIONAL INFORMATION TO ENCRYPTION KEY - The present invention relates to a content protection apparatus and method using binding of additional information to an encryption key. The content protection apparatus includes an encryption unit for creating an encryption key required to encrypt data requested by a user terminal and then generating encrypted data in which the data is encrypted. An additional information management unit manages additional information including authority information about the encrypted data. A White-Box Cryptography (WBC) processing unit generates a WBC table required to bind the encryption key corresponding to the encrypted data to the additional information. A bound data generation unit generates bound data in which the encrypted key is bound to the additional information, using a cipher included in the WBC table. | 04-26-2012 |
20120159166 | METHOD OF VERIFYING KEY VALIDITY AND SERVER FOR PERFORMING THE SAME - Disclosed herein is a method of verifying key validity and a server for performing the method. The method is configured such that a service provision server verifies key validity in an anonymous service for providing local linkability. The service provision server receives a revocation list. A local revocation list is generated using the received revocation list and a secret key. A virtual index of a service user required to verify key validity is calculated. Whether a key of the service user is valid is verified, based on whether the virtual index is included in the local revocation list. | 06-21-2012 |
20130232337 | USER TERMINAL AND METHOD FOR PLAYING DIGITAL RIGHTS MANAGEMENT CONTENT - Disclosed herein are a user terminal and method for playing DRM content. The user terminal includes a common security platform. The common security platform includes a DRM application management unit and a security management unit. The DRM application management unit stores and executes a DRM application that requests authentication from a license server and receives a license, including a decryption key for decrypting encrypted DRM content. The DRM application is an application in a downloadable form. The security management unit decrypts the encrypted DRM content, provided by a content providing server, using the decryption key included in the license issued via the DRM application. | 09-05-2013 |
20140082728 | DONGLE DEVICE FOR WIRELESS INTRUSION PREVENTION - Disclosed is a dongle device for wireless intrusion prevention, which can provide a wireless intrusion prevention service to a wireless access point in a wireless local area communication network. A dongle device for wireless intrusion prevention including an interface unit connected to an access point and configured to receive a data frame from the access point, a control unit configured to determine a security threat on the basis of the received data frame and generate prevention information if there is the security threat according to the determination result, and a storage unit configured to store information for security threat determination can make an existing wireless access point a wireless access point that can provide wireless intrusion prevention. | 03-20-2014 |
20140130155 | METHOD FOR TRACKING OUT ATTACK DEVICE DRIVING SOFT ROGUE ACCESS POINT AND APPARATUS PERFORMING THE METHOD - A method including: detecting an unauthorized soft rogue AP; collecting information about the detected soft rogue AP, information about one or more access terminals connected to the detected soft rogue AP, and information about one or more candidate attack terminals that are not connected to the detected soft rogue AP, and storing the collected information; | 05-08-2014 |
20140245441 | APPARATUS FOR ANALYZING VULNERABILITY OF WIRELESS LOCAL AREA NETWORK - Disclosed herein is an apparatus for analyzing the vulnerability of a wireless local area network (LAN). The apparatus includes a collection unit, an analysis unit, and an attack unit. The collection unit collects packets transmitted and received in a wireless LAN service. The analysis unit analyzes the state of a network using the collected packets. The attack unit makes a wireless attack against an attack target using the state of the network, and controls the mode switching of a device driver based on an operating mode. | 08-28-2014 |