New method for file deduplication in cloud storage
Deduplication is widely used in cloud storage service to save bandwidth and storage resources,however,the security of client deduplication still flaws in an external attack to access a user’s private data.Xu-CDE,a deduplication solution of encrypting data for multi-client was first proposed,which co...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2017-03-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017057/ |
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| author | Chao YANG Qian JI Si-chun XIONG Mao-zhen LIU Jian-feng MA Qi JIANG Lin BAI |
| author_facet | Chao YANG Qian JI Si-chun XIONG Mao-zhen LIU Jian-feng MA Qi JIANG Lin BAI |
| author_sort | Chao YANG |
| collection | DOAJ |
| description | Deduplication is widely used in cloud storage service to save bandwidth and storage resources,however,the security of client deduplication still flaws in an external attack to access a user’s private data.Xu-CDE,a deduplication solution of encrypting data for multi-client was first proposed,which could protect the privacy of data from the external attackers and honest but curious server,with favorable theoretical meaning and representativeness.However,in Xu-CDE,the user ownership authentication credentials were lack of instantaneity protection,which could not resist replay attack.As an improvement to the flaw,the protocol MRN-CDE (MLE based and random number modified client-side deduplication of encrypted data in cloud storage) was proposed,adding random number in order to ensure the instantaneity of the authentication credentials,and using the algorithm of MLE-K<sub>P</sub>to extract key from original file to replace the file itself as an encryption key.As a consequence,the new protocol improved security while significantly reduced the amount of computation.After the safety analysis and the actual tests,results show that based on Xu-CDE,the proposed protocol MRN-CDE has stronger security of ownership,and improves time efficiency.Specially,the new protocol works better on large files in cloud with a certain value. |
| format | Article |
| id | doaj-art-cb6a1723ea4845af85ad5931da9df595 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2017-03-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-cb6a1723ea4845af85ad5931da9df5952025-01-14T07:11:47ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2017-03-0138253359708339New method for file deduplication in cloud storageChao YANGQian JISi-chun XIONGMao-zhen LIUJian-feng MAQi JIANGLin BAIDeduplication is widely used in cloud storage service to save bandwidth and storage resources,however,the security of client deduplication still flaws in an external attack to access a user’s private data.Xu-CDE,a deduplication solution of encrypting data for multi-client was first proposed,which could protect the privacy of data from the external attackers and honest but curious server,with favorable theoretical meaning and representativeness.However,in Xu-CDE,the user ownership authentication credentials were lack of instantaneity protection,which could not resist replay attack.As an improvement to the flaw,the protocol MRN-CDE (MLE based and random number modified client-side deduplication of encrypted data in cloud storage) was proposed,adding random number in order to ensure the instantaneity of the authentication credentials,and using the algorithm of MLE-K<sub>P</sub>to extract key from original file to replace the file itself as an encryption key.As a consequence,the new protocol improved security while significantly reduced the amount of computation.After the safety analysis and the actual tests,results show that based on Xu-CDE,the proposed protocol MRN-CDE has stronger security of ownership,and improves time efficiency.Specially,the new protocol works better on large files in cloud with a certain value.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017057/encrypted datadeduplicationproof of ownershipinstantaneitycloud storage |
| spellingShingle | Chao YANG Qian JI Si-chun XIONG Mao-zhen LIU Jian-feng MA Qi JIANG Lin BAI New method for file deduplication in cloud storage Tongxin xuebao encrypted data deduplication proof of ownership instantaneity cloud storage |
| title | New method for file deduplication in cloud storage |
| title_full | New method for file deduplication in cloud storage |
| title_fullStr | New method for file deduplication in cloud storage |
| title_full_unstemmed | New method for file deduplication in cloud storage |
| title_short | New method for file deduplication in cloud storage |
| title_sort | new method for file deduplication in cloud storage |
| topic | encrypted data deduplication proof of ownership instantaneity cloud storage |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017057/ |
| work_keys_str_mv | AT chaoyang newmethodforfilededuplicationincloudstorage AT qianji newmethodforfilededuplicationincloudstorage AT sichunxiong newmethodforfilededuplicationincloudstorage AT maozhenliu newmethodforfilededuplicationincloudstorage AT jianfengma newmethodforfilededuplicationincloudstorage AT qijiang newmethodforfilededuplicationincloudstorage AT linbai newmethodforfilededuplicationincloudstorage |