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http://dx.doi.org/10.3745/KTCCS.2017.6.9.397

A Partial Encryption Method for the Efficiency and the Security Enhancement of Massive Data Transmission in the Cloud Environment  

Jo, Sung-Hwan (가천대학교 IT융합공학과)
Han, Gi-Tae (가천대학교 컴퓨터공학과)
Publication Information
KIPS Transactions on Computer and Communication Systems / v.6, no.9, 2017 , pp. 397-406 More about this Journal
Abstract
In case of using the existing encrypted algorithm for massive data encryption service under the cloud environment, the problem that requires much time in data encryption come to the fore. To make up for this weakness, a partial encryption method is used generally. However, the existing partial encryption method has a disadvantage that the encrypted data can be inferred due to the remaining area that is not encrypted. This study proposes a partial encryption method of increasing the encryption speed and complying with the security standard in order to solve this demerit. The proposed method consists of 3 processes such as header formation, partial encryption and block shuffle. In step 1 Header formation process, header data necessary for the algorithm are generated. In step 2 Partial encryption process, a part of data is encrypted, using LEA (Lightweight Encryption Algorithm), and all data are transformed with XOR of data in the unencrypted part and the block generated in the encryption process. In step 3 Block shuffle process, the blocks are mixed, using the shuffle data stored with the random arrangement form in the header to carry out encryption by transforming the data into an unrecognizable form. As a result of the implementation of the proposed method, applying it to a mobile device, all the encrypted data were transformed into an unrecognizable form, so the data could not be inferred, and the data could not be restored without the encryption key. It was confirmed that the proposed method could make prompt treatment possible in encrypting mass data since the encryption speed is improved by approximately 273% or so compared to LEA which is Lightweight Encryption Algorithm.
Keywords
Cloud; Data Security; Encryption Algorithm; Partial Encryption; LEA;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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