Based On Bilinear Bairing Of The Proxy Signature And Proxy Multi-signature Scheme Of Research

The rapid advance of the infornation age,make the network become a part of people’slife,but due to the instability of the network so that the network may be any attacks andchallenge,therefore,the network security becomes the present problems to be solved. Digitalsignature is an important support to protect the network information securitytechnology,today’s digital signature technology has been widely used in onlinetransactions,electronic cash,as well as the more popular aspects of smart home life in allaspects.In1996, Mambo et proposed proxy signature, proxy signature was born, for digitalsignature applications and opens up a new area of development. With the proxy signaturetechnology widely used in network transactions, the endless variety of proxy signaturescheme, makes existing proxy signature schemes increasingly serious security due to thethreat of an attacker, we must construct has some special proper ties (such as: forwardsecurity) proxy signature scheme to resist the attack by a variety of attacks. In addition, as theuser of network transactions as well as the process of diversification of network transactions,some of the new areas of research, this paper proxy signature and multi-signature scheme toconstruct a proxy multi-signature scheme signed proxy for a person in real life more than Theproblem of providing a way out. Later to construct a multi-proxy signature scheme, theprogram offers a solution focused multiplayer agent signed by the same person in real life.Finally, we construct a multi-proxy multi-signature scheme, the program for people to solvethe problem of proxy signature multiplayer commissioned more than provide a solution. Themain results of this paper are as follows:1. Combined with inadequate response to the program, such as Habitat upstream tosecure the advantages to construct a new proxy signature scheme based on bilinear pairings.In this paper, constructed before the new program, first analyze the knowledge of theforward-secure digital signature, including forward the concept of safety, the historicalprocess of the forward-secure digital signature key evolutionary process and forward-securedigital signature so that everyone on the forward-secure digital signatures have a system tounderstand. After that, we have seen through the analysis, Habitat upstream and others in theprogram, when the private key key key or the agent of his agent leaked leaked before allsignatures are invalid, the above circumstances, increase the signature before securitysignature of both losses to a minimum. Forward in the third chapter of the last, given the newprogram, the new program is to be updated as the period increases by the agent’s pr ivate keyto achieve security, the program proved to be able to resist the forgery attack and the signing rights and The power of attorney in the effective separation of the program, in addition to theabuse of the power of attorney also been effective avoidance.2. Using the advantage of the bilinear pairing to construct a new proxy multi-signaturescheme, the shorter the signature of the new program is easy to verify, and on the security ofthe scheme prove shows, in addition to anyone outside of the proxy signer forgery attack Theproxy multi-signature can be an effective resistance, and effectively avoid the proxy rightsabuse and other issues, in addition to strong proxy signature schemes other security featuresof the proxy multi-signature also meet high security.3. Use of the bilinear mapping the advantages of a new multi-proxy signature scheme,the new scheme and the proxy multi-signature scheme are based on a signature schemeconstructed. The new proposals by the correctness of the analysis and the security proof ofsignature length is shorter, more efficient so that the program is better than other existingprograms, high safety factor makes the program versatile in practical applications.4. New multi-proxy multi-signature scheme is based on bilinear mapping advantage tomulti-proxy multisignature original signer and the proxy signer more proxy signature key willbe longer, resulting in efficiency is low. Proxy key length in this new program structure withoriginal signature and the number of the proxy signer has nothing to do, therefore, the key isshorter, the higher the efficiency of the program’s advantages.