Dynamic Multimedia Encryption Using a Parallel File System Based on Multi-Core Processors

Cryptography

article

Osama A. Khashan¹  Nour M. Khafajah²  Waleed Alomoush³  Mohammad Alshinwan⁴  Sultan Alamri⁵  Samer Atawneh⁵  Mutasem K. Alsmadi⁶ 

[1] Research and Innovation Centers;Department of Cyber Security, Faculty of Science and Information Technology, Irbid National University;School of Information Technology, Skyline University College;Faculty of Information Technology, Applied Science Private University;College of Computing and Informatics, Saudi Electronic University;Department of MIS, College of Applied Studies and Community Services, Imam Abdulrahman Bin Faisal University

关键词: parallel encryption;    multimedia encryption;    file system;    multi-core processors;    cryptography;   

DOI  :  10.3390/cryptography7010012

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

Securing multimedia data on disk drives is a major concern because of their rapidly increasing volumes over time, as well as the prevalence of security and privacy problems. Existing cryptographic schemes have high computational costs and slow response speeds. They also suffer from limited flexibility and usability from the user side, owing to continuous routine interactions. Dynamic encryption file systems can mitigate the negative effects of conventional encryption applications by automatically handling all encryption operations with minimal user input and a higher security level. However, most state-of-the-art cryptographic file systems do not provide the desired performance because their architectural design does not consider the unique features of multimedia data or the vulnerabilities related to key management and multi-user file sharing. The recent move towards multi-core processor architecture has created an effective solution for reducing the computational cost and maximizing the performance. In this paper, we developed a parallel FUSE-based encryption file system called ParallelFS for storing multimedia files on a disk. The developed file system exploits the parallelism of multi-core processors and implements a hybrid encryption method for symmetric and asymmetric ciphers. Usability is significantly enhanced by performing encryption, decryption, and key management in a manner that is fully dynamic and transparent to users. Experiments show that the developed ParallelFS improves the reading and writing performances of multimedia files by approximately 35% and 22%, respectively, over the schemes using normal sequential encryption processing.

【 授权许可】

CC BY