TIIS (한국인터넷정보학회)
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| 한글제목(Korean Title) |
A Rapid Locating Protocol of Corrupted Data for Cloud Data Storage |
| 영문제목(English Title) |
A Rapid Locating Protocol of Corrupted Data for Cloud Data Storage |
| 저자(Author) |
Guangwei Xu
Yanbin Yang
Cairong Yan
Yanglan Gan
|
| 원문수록처(Citation) |
VOL 10 NO. 10 PP. 4703 ~ 4723 (2016. 10) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
The verification of data integrity is an urgent topic in remote data storage environments with the wide deployment of cloud data storage services. Many traditional verification algorithms focus on the block-oriented verification to resolve the dispute of dynamic data integrity between the data owners and the storage service providers. However, these algorithms scarcely pay attention to the data verification charge and the users’ verification experience. The users more concern about the availability of accessed files rather than data blocks. Moreover, the data verification charge limits the number of checked data in each verification. Therefore, we propose a mixed verification protocol to verify the data integrity, which rapidly locates the corrupted files by the file-oriented verification, and then identifies the corrupted blocks in these files by the block-oriented verification. Theoretical analysis and simulation results demonstrate that the protocol reduces the cost of the metadata computation and transmission relative to the traditional block-oriented verification at the expense of little cost of additional file-oriented metadata computation and storage at the data owner. Both the opportunity of data extracted and the scope of suspicious data are optimized to improve the verification efficiency under the same verification cost. |
| 키워드(Keyword) |
Data integrity
verification metadata
block-oriented verification
file-oriented verification
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| 파일첨부 |
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