本文選題：云計算　切入點：云存儲　出處：《蘭州理工大學(xué)》2013年碩士論文

【摘要】：隨著云計算的飛速發(fā)展,越來越多的人或者組織開始使用云計算資源。云計算的云存儲服務(wù)的一個最大特點就是其無限的存儲能力。為了降低管理和成本許多個人、企業(yè)和組織將他們的數(shù)據(jù)文件外包至云存儲服務(wù)器中。 云存儲服務(wù)方式主要分為兩類：第一類是專用存儲,即在云端存儲的數(shù)據(jù)文件有且只有數(shù)據(jù)文件的持有者可以使用；第二類是共享存儲,即在云端存儲的數(shù)據(jù)文件可以令多個共享者使用。本文對當前的云存儲安全現(xiàn)狀進行了介紹；并依次按照云存儲中的機密性、完整性、可用性、監(jiān)控和審計這5個安全屬性對目前云存儲的安全研究狀況作了介紹。介紹了與本文相關(guān)的密碼學(xué)概念；并依此對加密模型、對稱加密、公鑰加密、公鑰加密秘密共享技術(shù)和hash函數(shù)進行了介紹。 最后,本文以分布式存儲模型為基礎(chǔ),利用AES加密方法對存儲的數(shù)據(jù)文件進行加密,對已加密數(shù)據(jù)文件進行哈希運算保證存儲數(shù)據(jù)文件的可驗證性；將秘密共享技術(shù)利用到了云存儲方案中,達到了對數(shù)據(jù)文件進行一次加密而可以令多個共享者使用,采用子密鑰的影子信息技術(shù)使得子密鑰可多次使用。證明了本方案具有較高的安全性、可以驗證服務(wù)器端的惡意篡改,將本文設(shè)計的云存儲共享方案和已有的存儲共享方案進行了比較,結(jié)果表明本文方案具有較低的復(fù)雜度和較高的效率
[Abstract]:With the rapid development of cloud computing, more and more people or organizations begin to use cloud computing resources. Enterprises and organizations outsource their data files to cloud storage servers. Cloud storage services are divided into two main categories: the first is dedicated storage, which has data files stored in the cloud and is available only to the holder of the data file, and the second is shared storage. That is, the data files stored in the cloud can be used by many sharers. This paper introduces the current security situation of cloud storage, and according to the confidentiality, integrity and availability of cloud storage, Monitoring and auditing of these five security attributes of cloud storage security research status is introduced. The related cryptographic concepts are introduced, and the encryption model, symmetric encryption, public key encryption, Public key encryption secret sharing technology and hash function are introduced. Finally, based on the distributed storage model, AES encryption method is used to encrypt the stored data files and hash the encrypted data files to ensure the verifiability of the stored data files. The secret sharing technology is used in the cloud storage scheme, which can encrypt the data file once so that it can be used by more than one user. The shadow information technology of the sub-key makes the sub-key can be used many times. It is proved that this scheme has high security and can verify the malicious tampering on the server side. The cloud storage sharing scheme designed in this paper is compared with the existing storage sharing scheme. The results show that the proposed scheme has lower complexity and higher efficiency.
【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TP333;TN918.1

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本文編號：1668661