Proxy multi-signature method and system based on position

Abstract

The invention provides a proxy multi-signature method and system based on position. The proxy multi-signature method based on the position comprises the following steps: the initialization of a proxysigner PS, a original signer group OSG and a position infrastructure PI is performed; the authenticity verification of the position where the original signer group OSG is located is completed under the participation of the PI, the authenticity verification of the position of the proxy signer PS is verified through the PI, and the designated position proxy signature authorization of the proxy signer PS is completed by the original signer group OSG; the proxy signer PS completes its own position authentication function under the support of the PI and then performs the proxy signature function for specific information; and a proxy signature verifier V completes the verification that the proxy signature of the preset information is performed by the original signer group of the designated position combined with the proxy signer of the designated position. The proxy multi-signature method based on the position provided by the invention has high safety and wide application range, and realizesthe transfer of the authentication power of identity and position.

Description

technical field [0001] The invention relates to the technical field of network information security, in particular to a position-based proxy multi-signature method and system. Background technique [0002] In recent years, location-based related services and applications and proxy signature technology have been in-depth research and development. Location-based services and applications can locate users' locations, and can also provide users with location-related services, such as hotel services, catering services, postal services, and travel services. Proxy signature technology provides the ability for one user to authorize another user to implement proxy signature, and then realize the function of authenticating the integrity, non-repudiation and source of the message. [0003] However, in the prior art, it is still not possible to realize the function of a user group located in different locations jointly authorizing a single user located in another location to implement ...

AI Technical Summary

Problems solved by technology

[0003] However, the existing technology is still unable to implement the function of proxy signature at a designated location by a user group located in different locations to authorize a single user located in another location to represent the user group in the mobile Internet environment.

Therefore, user location security and location-related message integrity, authentication, and non-repudiation cannot be guaranteed

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