Patent application number | Description | Published |
20090300351 | FAST SEARCHABLE ENCRYPTION METHOD - The present invention provides a method, apparatus and system for fast searchable encryption. The data owner encrypts files and stores the ciphertext to the server. The data owner generates an encrypted index according to each keyword of the files, and stores the encrypted index to the server. The index is composed of keyword item sets each being identified by a keyword item set locator and containing at least one or more file locators of the files associated with the corresponding keyword. Each file locator contains ciphertext of information for retrieval of an encrypted file and only with the correct file locator decryption key can the ciphertext be decrypted. Data owner issues a keyword item set locator as well as file locator decryption key to a searcher to enable the searcher to search on the encrypted index and retrieve files related to a certain keyword. | 12-03-2009 |
20100121856 | METHOD AND APPARATUS FOR GENERATING INDEX AS WELL AS SEARCH METHOD AND SEARCH APPARATUS - The present invention provides a method and apparatus for generating index as well as a search method and a search apparatus. Index entry comprises at least a search item identifier corresponding to a search item, one or a plurality of index items generated from one or plural pieces of search information, and an accumulator for the search information. The accumulator is generated by accumulating the search information, or accumulating ciphertext of information containing the search information, or accumulating data mapped from information containing the search information. At the time of searching, the index items and the accumulator are provided to a searcher. The searcher extracts search information from the index items and checks whether the extracted search information is complete by using the accumulator. In one embodiment, the accumulator is incorporated in an encrypted inverted index. | 05-13-2010 |
20100169321 | METHOD AND APPARATUS FOR CIPHERTEXT INDEXING AND SEARCHING - The present invention provides a method and apparatus for ciphertext indexing and searching. Indices of multiple levels are created for the encrypted files. Each item in the primary index includes a primary index item identifier and the ciphertext of the primary indexing information of the related file. The primary indexing information each includes an identifier(s) of the related secondary index item identifier(s) and the corresponding decryption information. Each item in the secondary index includes a secondary index item identifier and the ciphertext of the secondary indexing information. Information necessary for obtaining a file is included in the corresponding secondary indexing information. With the decryption information of the secondary indexing information in the decrypted primary indexing information, the ciphertext of the related secondary indexing information is decrypted so as to obtain information such as the decryption key of the file. | 07-01-2010 |
20120290700 | INTERNET ADDRESS INFORMATION PROCESSING METHOD, APPARATUS, AND INTERENT SYSTEM - Embodiments of the present invention provide an Internet address information processing method, apparatus and an Internet system. The method includes: receiving, by a first leaf node, a query request message containing an IP address to be queried sent by user equipment, and performing query or sending a query request to an intermediate layer node; obtaining, by the intermediate layer node, an IP address of a second leaf node according to a prefix of the IP address to be queried to send the query request message to the second leaf node; and finally, sending, by the second leaf node, address information about the IP address after receiving the query request message. Embodiments of the present invention further provide corresponding apparatus and system. The method, apparatus, and system provided by the present invention are capable of implementing real-time query for address information about IP addresses. | 11-15-2012 |
20140029536 | WIRELESS BEARING BUILDING METHOD, ACCESS POINT EQUIPMENT, USER EQUIPMENT AND SYSTEM - Disclosed in the present invention are a wireless bearing building method, an Access Point (AP) equipment, a User Equipment (UE) and a wireless access system, the UE divides the IP date flow of a service into multiple service date flow having different QoS requirements according to media parameter information, determines QoS parameters of each service date flow and sends the information of the service date flow and the corresponding QoS parameters to the AP, the AP allocates wireless resources for each service date flow according to the local QoS strategy, builds the corresponding wireless bearing and binds the service date flow and the wireless bearing; the UE side also builds the corresponding wireless bearing for each service date flow and binds the service date flow and the wireless bearing, during the uplink and downlink date transmission, the AP and UE in the present invention can map each service date flow to the corresponding wireless bearing respectively for transmission according to the QoS requirements of different service date flow, implements perfect service mechanism of the QoS. | 01-30-2014 |
20150128282 | PRIVACY PROTECTION FOR PARTICIPATORY SENSING SYSTEM - Provided is a method that may be used for privacy protection. The method comprises: generating a pseudonym at a user equipment in association with sensed data; calculating a unique value based upon the pseudonym using a first algorithm; sending the unique value and the sensed data to a server; receiving from the server a certificate, wherein the certificate is calculated based at least in part on the unique value using a second algorithm; and sending at least the pseudonym and the certificate to a certification center via a secure channel, for obtaining a reward associated with the sensed data; wherein the certification center is internal or external to the server. By this method, a user's identify may be protected. | 05-07-2015 |
20150254064 | Method and a Technical Equipment for Social Network Service - The embodiments of the invention relates to a method and a technical equipment for social network. The method comprises determining a relation degree between a user and a connection for each user relation at a specific time; listing the determined relations in time order to create a time-serial relation sequence; repeating the previous steps for all connections of the user; and grouping the connections according to the created time serial relation sequences. | 09-10-2015 |
20160004574 | METHOD AND APPARATUS FOR ACCELERATING SYSTEM RUNNING - The invention discloses a method and apparatus for accelerating. It comprises a method and apparatus for accelerating. The method comprises: an acceleration enabling step of constructing and displaying an acceleration panel containing a one-key acceleration control when a preset enabling condition is triggered; and an acceleration execution step of detecting the one-key acceleration control within the acceleration panel in real time, and swapping memory occupied by all currently running processes to virtual memory to assist the system in running acceleration when the one-key acceleration control is triggered. The method and the apparatus of the invention can organize the system running condition for a user at a fastest speed, free redundant resources, increase the real-time system running speed of the user, and well solve the problem in the prior art that the system running speed can not be increased effectively. | 01-07-2016 |