Identity-based Provable Data Possession from RSA Assumption for Secure Cloud Storage

Author(s):  
Jianbing Ni ◽  
Kuan Zhang ◽  
Yong Yu ◽  
Tingting Yang
2019 ◽  
Vol 95 ◽  
pp. 309-322 ◽  
Author(s):  
Wei Guo ◽  
Hua Zhang ◽  
Sujuan Qin ◽  
Fei Gao ◽  
Zhengping Jin ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Haibin Yang ◽  
Zhengge Yi ◽  
Ruifeng Li ◽  
Zheng Tu ◽  
Xu An Wang ◽  
...  

With the advent of data outsourcing, how to efficiently verify the integrity of data stored at an untrusted cloud service provider (CSP) has become a significant problem in cloud storage. In 2019, Guo et al. proposed an outsourced dynamic provable data possession scheme with batch update for secure cloud storage. Although their scheme is very novel, we find that their proposal is not secure in this paper. The malicious cloud server has ability to forge the authentication labels, and thus it can forge or delete the user’s data but still provide a correct data possession proof. Based on the original protocol, we proposed an improved one for the auditing scheme, and our new protocol is effective yet resistant to attacks.


2019 ◽  
Vol 23 (2) ◽  
pp. 1455-1468 ◽  
Author(s):  
Reyhaneh Rabaninejad ◽  
Maryam Rajabzadeh Asaar ◽  
Mahmoud Ahmadian Attari ◽  
Mohammad Reza Aref

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