短簽名算法研究及其在移動云計算中的應(yīng)用
[Abstract]:With the wide popularity of mobile terminals such as smart phones and tablets, the mobile Internet (MI,Mobile Internet) came into being, but mobile terminals have a series of defects such as small storage space, weak computing power, cloud computing (CC,). The rise of Clouding Computing) provides a new computing model to solve the limitation of mobile terminals, which leads to the combination of the advantages of mobile Internet and cloud computing service-Mobile Cloud Computing (MCC,Mobile Clouding Computing). As a super computing model, mobile cloud computing enables users to access the corresponding computers and storage systems according to their needs through the mobile Internet, obtain the required resources and services at any time, anywhere and easily realize data exchange. Therefore, the performance requirements of mobile terminals are reduced, and mobile Internet is developed rapidly. Although the introduction of cloud computing has solved the limited resources of mobile terminals, because the data in cloud computing is stored in the "cloud" end and monopolized by enterprises, they can only provide commercial credit protection, and users no longer have the ability to control the data. And if malicious users access cloud computing, it will pose a great threat to the security of data in the cloud. Therefore, how to realize the secure access of users and the secure storage of data in cloud computing has become a hot research topic. This paper focuses on improving some security problems in mobile cloud computing access authentication protocol. In this paper, a certificate free short signature algorithm is proposed, which has the following advantages: firstly, the pair operation in the signature phase is eliminated, only two pairs of operations are required in the verification phase, and the signature length is reduced to 160 bits, so it has an efficient computing efficiency. Secondly, the user's public key is bound to its corresponding private key, which not only avoids the public key substitution attack, but also the malicious KGC attack is difficult to implement. Thirdly, it is proved that the new scheme is unforgeable to the adaptive selection message attack under the random oracle model. Finally, the simulation and evaluation of the certificateless short signature algorithm proposed in this paper is carried out in the software environment, which proves that the new algorithm has high security and execution efficiency. Based on the above algorithms, we improve the security problems in the open identity (Open ID) authentication protocol in mobile cloud computing services, and propose a new user security access authentication protocol. The protocol has the advantages of simple flow, low computational complexity, user anonymity, non-repudiation, bidirectional authentication, key establishment and so on, and improves the access efficiency and security of users.
【學(xué)位授予單位】:西安電子科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TN918.91
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