Device area provable security verification method against collusion attack

Abstract

The invention discloses an equipment area provable security verification method with resistance to collusion attack and mainly solves the problem of absence of a security verification method with areas as credential information in existing position-based cryptography technologies. The implementation scheme of the method comprises steps as follows: a provable security verification model is built, and a prover is located in a target area; verifiers select information sources and random series and share information with one another, and the verifiers replay information in a broadcasting manner; a metric value is generated by the prover, and a verification value is calculated, and position information of the prover is broadcasted; the verifiers verify correctness of the verification value, whether the position information of the prover is accepted is judged, if the verification value passes the verification, the position information of the prover is broadcasted, otherwise, the verification value does not pass the verification, that is, the position claimed by the prover is not in the area, and the verification is finished. According to the method, any prover in the target area can effectively resist the collusion attack of multiple opponents after verification, and the security verification of the position of the prover is realized. The method can be used for verifying whether the equipment, namely, the prover, is located in the target area.

Description

technical field

[0001] The invention belongs to the technical field of network security, and mainly relates to area password verification, in particular to a device area verifiable security verification method against collusion attack, which can be used to verify whether a prover is in a designated area. Background technique

[0002] With the development of mobile communication technology, network technology and surveying and mapping technology, location-related information value-added services have become an important part of modern geographic information, and gradually become one of the biggest growth points. Location information is increasingly showing its importance. There have been many services based on location information. With the development of GPS and wireless Internet access technology, the demand for location information services has shown a substantial growth trend. Therefore, many system designs now use participant location information. However, when the righ...

Images