【摘要】：針對云存儲(chǔ)平臺(tái)中用戶隱私和敏感數(shù)據(jù)的安全保護(hù)問題,在前期提出的基于自主可控機(jī)制的安全云存儲(chǔ)模型ASOM(All Self-Organization Model)基礎(chǔ)上,對MDSS端元數(shù)據(jù)的管理操作、MDSS和DMS之間的通信過程做進(jìn)一步優(yōu)化,針對ASOM模型實(shí)際場景引入鎖思想實(shí)現(xiàn)兩個(gè)節(jié)點(diǎn)一致性的Co-Work算法,完成MDSS和DMS節(jié)點(diǎn)之間的協(xié)同工作和數(shù)據(jù)的一致性保持。同時(shí),考慮網(wǎng)絡(luò)帶寬對ASOM中讀寫效率的影響,引入隨機(jī)表機(jī)制,改變DSS上報(bào)的時(shí)間結(jié)點(diǎn),以提高ASOM整體讀寫效率。測試結(jié)果表明:執(zhí)行Co-Work算法后的ASOM模型實(shí)現(xiàn)了數(shù)據(jù)的物理與邏輯隔離,保證用戶對元數(shù)據(jù)的自主控制和管理,而且隨著數(shù)據(jù)尺寸增大讀寫效率明顯提高,在數(shù)據(jù)達(dá)到1 GB時(shí)讀寫效率提高了12%。
[Abstract]:Aiming at the security protection of user privacy and sensitive data in cloud storage platform, based on the security cloud storage model (ASOM (All Self-Organization Model) based on autonomous and controllable mechanism, the management operation of MDSS metadata is proposed in this paper. The communication process between MDSS and DMS is further optimized. The lock idea is introduced into the ASOM model to implement the Co-Work algorithm for the consistency of two nodes. The cooperative work between MDSS and DMS nodes and the consistency of data are achieved. At the same time, considering the influence of network bandwidth on the efficiency of reading and writing in ASOM, the random table mechanism is introduced to change the time node reported by DSS, so as to improve the overall reading and writing efficiency of ASOM. The test results show that the ASOM model after the implementation of the Co-Work algorithm realizes the physical and logical isolation of the data, ensures the user's autonomous control and management of the metadata, and improves the efficiency of reading and writing with the increase of the size of the data. When the data reaches 1 GB, the efficiency of reading and writing is increased by 12.
【作者單位】： 廣東工業(yè)大學(xué)計(jì)算機(jī)學(xué)院;
【基金】：國家科技支撐計(jì)劃課題(No.2015BAK19B03) 廣州市科技計(jì)劃項(xiàng)目(No.2014XYD-007) 教育部留學(xué)回國人員科研啟動(dòng)基金(No.14ZK0152)
【分類號】：TP333;TP309
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本文編號：2369854