摘要:
A handover authentication method includes performing, by a wireless network server, a first authentication between a client and the wireless network server via a first network gateway; obtaining first authentication keys for the wireless network server and the client based on the first authentication; determining, by the wireless network server, a need to handover the client from the first network gateway to a second network gateway; deriving, by the wireless network server and from the first authentication keys, a handover authentication key shared by the client and the wireless network server; obtaining, by the wireless network server, second authentication keys for the network server and the client; and serving, by the wireless network server, the client via the second network gateway.
摘要:
Mobile jamming attack method in wireless sensor network and method defending the same The present invention relates to a mobile jamming attack method applied in a wireless sensor network (WSN) and method defending the same. The mobile jamming attack method is a power exhaustion denial-of-service attack, possesses mobility and self-learning capability and is unable to be defended with existing defending scheme due to its attack to the routing layer of the WSN; the mobile jamming defending method employs multi-topologies scheme to defend the mobile jamming attack so that the affected area is reduced, the base station can still receive reply packets under the attack, and the jammed area can be roughly located and the track of the mobile jammer can be traced.
摘要:
A method for key management for a broadcasting system includes generating a receiver group key (RGK) seed and a plurality of parameters for a receiver group provided by the broadcasting system; and calculating an RGK for the receiver group based on the RGK seed and the plurality of parameters.
摘要:
A key management method for wireless networks is disclosed. Before a mobile station residing in a first ASN switches to a neighboring second ASN, an authentication process between the mobile station and the second ASN is implemented. Thus, the authentication process is not required when the mobile station is switching to the second ASN.
摘要:
A method for preventing domain name system cache poisoning attacks comprises steps of inputting a domain name by an internet application program of an Internet communication device, determining in which area the Internet communication device is located, randomly selecting at least two domain name system resolvers of the area, retrieving at least one Internet protocol address from the domain name system resolvers and evaluating the Internet protocol addresses to generate at least one security score, selecting a trustworthy Internet protocol address based on the security scores, comparing the security score of the selected Internet protocol address with a predetermined security score threshold, and sending the trustworthy Internet protocol address to the Internet application program of the Internet communication device when the security score is greater than the security score threshold. A system for preventing domain name system cache poisoning attacks comprises an Internet communication device and an optional proxy server.
摘要:
A key management system is provided. The key management system includes a key server. The key server generates secret keys by constructing a rights hierarchy and a resource hierarchy, associating the rights hierarchy with the resource hierarchy, and converting a rights-resource relationship into a node in a service hierarchy. The rights hierarchy includes a rights node and the resource hierarchy includes a resource node. The rights hierarchy is set above the resource hierarchy. The right hierarchy and the resource hierarchy are in a partial order relationship.
摘要:
A method for assigning a plurality of users of a broadcasting system, wherein each of the plurality of users subscribes to at least one of a plurality of receiver groups provided by the broadcasting system. The method includes dividing the plurality of users into a plurality of temporary groups each including ones of the plurality of users that subscribe to a same one of the plurality of receiver groups; and assigning the ones of the plurality of users to at least one user group.
摘要:
The present invention provides a method regarding key deployment in wireless sensor networks, that is, with random anticipated disposition mechanism as basis, a key management mechanism is designed.
摘要:
A carpool fare organizer is useful when there is at least one passenger and comprises a distance recording unit, a passenger calculating unit, a fare calculating module and at least one display device. The distance recording unit records a get-in distance, a get-out distance and an accumulated distance of each passenger. The passenger calculating unit calculates a number of passengers. The fare calculating module calculates an original fare, an accumulated discount and an economical fare. A method for generating carpool fares comprises steps of recording a get-in distance, a get-out distance and an accumulated distance of each passenger and a number of passengers, and calculating an economical fare with the get-in distance, the get-out distance, the accumulated distance and the number of passengers.
摘要:
Disclosed is an authentication method employing elliptic curve cryptography (ECC), applicable to a mobile broadcast TV system having one or more head end systems, at least a transmitter, and at least a mobile set. The authentication method comprises at least one request message from mobile sets simultaneously or in a short period of time arriving at a head end system for authentication; manipulating each broadcast authentication message by ECC; manipulating each service request message by ECC and pairing operation; performing a mutual authentication between the head end system and mobile sets by ECC and pairing operation; and broadcasting one group of authentication messages to all the mobile sets of many requests arrived at the head end system simultaneously or in a short period of time for the same service.