@article{M6A7019EF, title = "A Secure and Practical Encrypted Data De-duplication with Proof of Ownership in Cloud Storage", journal = "Journal of KIISE, JOK", year = "2016", issn = "2383-630X", doi = "", author = "Cheolhee Park,Dowon Hong,Changho Seo", keywords = "deduplication,proof of ownership,encrypted data deduplication,cloud storage", abstract = "In cloud storage environment, deduplication enables efficient use of the storage. Also, in order to save network bandwidth, cloud storage service provider has introduced client-side deduplication. Cloud storage service users want to upload encrypted data to ensure confidentiality. However, common encryption method cannot be combined with deduplication, because each user uses a different private key. Also, client-side deduplication can be vulnerable to security threats because file tag replaces the entire file. Recently, proof of ownership schemes have suggested to remedy the vulnerabilities of client-side deduplication. Nevertheless, client-side deduplication over encrypted data still causes problems in efficiency and security. In this paper, we propose a secure and practical client-side encrypted data deduplication scheme that has resilience to brute force attack and performs proof of ownership over encrypted data." }