TY - JOUR
T1 - CLDSafe
T2 - An efficient file backup system in cloud storage against ransomware
AU - Yun, Joobeom
AU - Hur, Junbeom
AU - Shin, Youngjoo
AU - Koo, Dongyoung
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No.2015R1C1A1A02036511, No.2017R1C1B5015045). This work was supported by the research fund of Signal Intelligence Research Center supervised by the Defense Acquisition Program Administration and Agency for Defense Development of Korea.
PY - 2017/9
Y1 - 2017/9
N2 - Ransomware becomes more and more threatening nowadays. In this paper, we propose CLDSafe, a novel and efficient file backup system against ransomware. It keeps shadow copies of files and provides secure restoration using cloud storage when a computer is infected by ransomware. After our system measures file similarities between a new file on the client and an old file on the server, the old file on the server is backed up securely when the new file is changed substantially. And then, only authenticated users can restore the backup files by using challenge-response mechanism. As a result, our proposed solution will be helpful in recovering systems from ransomware damage.
AB - Ransomware becomes more and more threatening nowadays. In this paper, we propose CLDSafe, a novel and efficient file backup system against ransomware. It keeps shadow copies of files and provides secure restoration using cloud storage when a computer is infected by ransomware. After our system measures file similarities between a new file on the client and an old file on the server, the old file on the server is backed up securely when the new file is changed substantially. And then, only authenticated users can restore the backup files by using challenge-response mechanism. As a result, our proposed solution will be helpful in recovering systems from ransomware damage.
KW - Cloud storage system
KW - Fuzzy hashing
KW - Ransomware
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U2 - 10.1587/transinf.2017EDL8052
DO - 10.1587/transinf.2017EDL8052
M3 - Article
AN - SCOPUS:85029445497
SN - 0916-8532
VL - E100D
SP - 2228
EP - 2231
JO - IEICE Transactions on Information and Systems
JF - IEICE Transactions on Information and Systems
IS - 9
ER -