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Content Provider | IET Digital Library |
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Author | Liu, Jian Wang, Huimei Xian, Ming Rong, Hong Huang, Kun |
Abstract | Cloud computing is a promising computing paradigm which has drawn extensive attention. Serious concerns over the reliability and confidentiality of the outsourced data are arising. Traditional encryption methods can, guarantee data confidentiality, however, it also limits the cloud's functionality as few operations are supported over encrypted data. In this study, the authors construct an enhanced cloud that not only provides secure and robust data storage, but also supports the functionality that the cipher data can be forwarded without being retrieved back. Specifically, they design an all-or-nothing-transform-based encryption and a variant of ElGamal-based proxy re-encryption algorithms, blending them with Reed–Solomon code, the authors’ scheme is quite more efficient compared with previous studies because it only needs to update partial data blocks instead of the whole file for data forwarding. Besides, the authors’ scheme also satisfies another practical property that the original data owner can no longer decrypt or forward the re-encrypted data to others after a complete forwarding instance, which is termed to be ‘original inaccessibility’ in this study. Analysis shows that the authors’ scheme is secure and satisfactory. Finally, the authors theoretically and experimentally evaluate its performance and the results indicate that their scheme is efficient during file dispersal, forward and retrieval. |
Starting Page | 661 |
Ending Page | 668 |
Page Count | 8 |
ISSN | 17518628 |
Volume Number | 10 |
e-ISSN | 17518636 |
Issue Number | Issue 6, Apr (2016) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/10/6 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0608 |
Journal | IET Communications |
Publisher Date | 2016-04-14 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | All-or-nothing-transform-based Encryption Cipher Data Cloud Computing Code Confidential Cloud Storage Confidentiality Cryptography Data Forwarding Functionality Data Security ElGamal-based Proxy Re-encryption Algorithm Encryption Method File Dispersal File Organisation File Retrieval Internet Software Reed-Solomon Code Reliability Reliable Cloud Storage Robust Data Storage Storage Management |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering Computer Science Applications |
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