Secured Data Sharing and Access Control for Cloud Computing Systems using CP-ABE Algorithm with Verifiable Delegation

NCICCNDA ◽  
2018 ◽  
Author(s):  
Kavya P ◽  
Manjula S ◽  
Neethu Kuwar ◽  
Nikitha R ◽  
Gururaj KS
Keyword(s):  
Cloud Computing ◽  
Access Control ◽  
Data Sharing ◽  
Computing Systems ◽  
Secured Data

scholarly journals Enabling Efficient Decentralized and Privacy Preserving Data Sharing in Mobile Cloud Computing

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Jiawei Zhang ◽  
Ning Lu ◽  
Teng Li ◽  
Jianfeng Ma
Keyword(s):  
Cloud Computing ◽  
Access Control ◽  
Mobile Devices ◽  
Data Sharing ◽  
Mobile Cloud Computing ◽  
High Efficiency ◽  
Mobile Cloud ◽  
User Privacy ◽  
Access Policy ◽  
Fine Grained

Mobile cloud computing (MCC) is embracing rapid development these days and able to provide data outsourcing and sharing services for cloud users with pervasively smart mobile devices. Although these services bring various conveniences, many security concerns such as illegally access and user privacy leakage are inflicted. Aiming to protect the security of cloud data sharing against unauthorized accesses, many studies have been conducted for fine-grained access control using ciphertext-policy attribute-based encryption (CP-ABE). However, a practical and secure data sharing scheme that simultaneously supports fine-grained access control, large university, key escrow free, and privacy protection in MCC with expressive access policy, high efficiency, verifiability, and exculpability on resource-limited mobile devices has not been fully explored yet. Therefore, we investigate the challenge and propose an Efficient and Multiauthority Large Universe Policy-Hiding Data Sharing (EMA-LUPHDS) scheme. In this scheme, we employ fully hidden policy to preserve the user privacy in access policy. To adapt to large scale and distributed MCC environment, we optimize multiauthority CP-ABE to be compatible with large attribute universe. Meanwhile, for the efficiency purpose, online/offline and verifiable outsourced decryption techniques with exculpability are leveraged in our scheme. In the end, we demonstrate the flexibility and high efficiency of our proposal for data sharing in MCC by extensive performance evaluation.

scholarly journals How Location-Aware Access Control Affects User Privacy and Security in Cloud Computing Systems

2020 ◽  
Vol 6 (18) ◽  
pp. 165236 ◽  
Author(s):  
Wen Zeng ◽  
Reem Bashir ◽  
Trevor Wood ◽  
Francois Siewe ◽  
Helge Janicke ◽  
...  
Keyword(s):  
Cloud Computing ◽  
Access Control ◽  
User Privacy ◽  
Privacy And Security ◽  
Computing Systems ◽  
Location Aware

Access Control in Cloud Computing

2016 ◽  
pp. 1914-1936
Author(s):  
Qianqian Zhao ◽  
Maode Ma ◽  
Yuqing Zhang ◽  
Bingsheng He
Keyword(s):  
Cloud Computing ◽  
Access Control ◽  
Data Sharing ◽  
Rapid Expansion ◽  
Control Mechanisms ◽  
New Paradigm ◽  
Research Issues ◽  
Security Issues ◽  
Secure Access ◽  
Secure Access Control

Data sharing as one of the most popular service applications in cloud computing has received wide attention, which makes the consumers achieve the shared contents whenever and wherever possible. However, the new paradigm of data sharing will also introduce some security issues while it provides much convenience. The data confidentiality, the privacy security, the user key accountability, and the efficiency are hindering its rapid expansion. An effective and secure access control mechanism is becoming one way to deal with this dilemma. In this chapter, the authors focus on presenting a detailed review on the existing access control mechanisms. Then, they explore some potential research issues for the further development of more comprehensive and secure access control schemes. Finally, the authors expect that the topic of access control in cloud computing will attract much more attention from academia and industry.

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