Trust Based Access Control Policy in Multi-domain of Cloud Computing

2013 ◽  
Vol 8 (5) ◽  
Author(s):  
Guoyuan Lin ◽  
Yuyu Bie ◽  
Min Lei
2013 ◽  
Vol 411-414 ◽  
pp. 40-44
Author(s):  
Xiao Yong Tang ◽  
Jin Wei Li ◽  
Gui Ping Liao

The use of Cloud computing systems to run large-scale scientific, business and consumer based IT applications has increased rapidly in recent years. More and more Cloud users concern the data privacy protection and security in such systems. A natural way to tackle this problem is to adopt data encryption and access control policy. However, this solution is inevitably introduced a heavy computation overhead. In this paper, we first establish a trust model between Cloud servers and Cloud users. Then, we build the trust-aware attribute-based access control policies according to Cloud user trust level and Cloud request attributes. This technique can give different encryption and decryption data to Cloud user and substantive reduce the computation overhead of Cloud computing.


2014 ◽  
Vol 513-517 ◽  
pp. 2273-2276
Author(s):  
Shao Min Zhang ◽  
Jun Ran ◽  
Bao Yi Wang

Ciphertext-Policy Attribute-based encryption (CP-ABE) mechanism is an extension of attribute-based encryption which associates the ciphertext and user's private key with the attribute by taking the attribute as a public key. It makes the representation of the access control policy more flexible, thus greatly reduces the network bandwidth and processing overhead of sending node brought by fine-grained access control of data sharing. According to the principle of CP-ABE encryption mechanism for this mechanism, an improved cloud computing-based encryption algorithm was proposed in this paper to overcome the deficiencies of permission changing process under the massive data. Experimental results show that compared with traditional methods, the new mechanism significantly reduces time-consuming.


2020 ◽  
Vol 62 (3) ◽  
pp. 1143-1159
Author(s):  
Qin Liu ◽  
Tinghuai Ma ◽  
Fan Xing ◽  
Yuan Tian ◽  
Alia Alabdulkarim ◽  
...  

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