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Analysis of a Double-stage Encryption Scheme Using Hybrid Cryptography to Enhance Data Security in Cloud Computing Systems

Volume / Date

 VOL. 21 (NO. 2) / DEC.2023

Page

 pp. 1-26

DOI

 10.6182/jlis.202312_21(2).001

Language

 English

Moses Kazeem Abiodun, Agbotiname Lucky Imoize, Joseph Bamidele Awotunde, Cheng-Chi Lee*, Abidemi Emmanuel Adeniyi, Ugbaja Chioma, Chun-Ta Li

* Corresponding Author

Moses Kazeem Abiodun Department of Computer Science, Landmark University, Omu-Aran, Nigeria
ORCID: 0000-0002-3049-1184
Agbotiname Lucky Imoize Department of Electrical and Electronics Engineering, University of Lagos, Lagos, Nigeria
Department of Electrical Engineering and Information Technology, Ruhr University, Bochum, Germany
ORCID: 0000-0001-8921-8353
Joseph Bamidele Awotunde Department of Computer Science, University of Ilorin, Ilorin, Nigeria
ORCID: 0000-0002-1020-4432
Cheng-Chi Lee* Research and Development Center for Physical Education, Health, and Information Technology, College of Education, Fu Jen Catholic University, New Taipei, Taiwan
Department of Library and Information Science, Fu Jen Catholic University, New Taipei, Taiwan
Department of Computer Science and Information Engineering, Asia University, Taichung, Taiwan
ORCID: 0000-0002-8918-1703
cclee@mail.fju.edu.tw
Abidemi Emmanuel Adeniyi Department of Computer Science, Precious Cornerstone University, Ibadan, Nigeria
ORCID: 0000-0002-2728-0116
Ugbaja Chioma Department of Computer Science, Landmark University, Omu-Aran, Nigeria
Chun-Ta Li Program of Artificial Intelligence and Information Security, Fu Jen Catholic University, New Taipei, Taiwan
ORCID: 0000-0003-0637-5666

Abstract

Recently, network users have been scared of storing sensitive information, such as bank details, health records, and other vital information, on the Internet because it is vulnerable to attack by a third party. Several threat models are impacting the security of the cloud. Having a secure cloud system will help to be at ease in using cloud computing facilities. This study aims at providing a cryptography approach to eliminating the vulnerabilities in the cloud-based system, and making access and data storage in the cloud very safe. The system uses Rivest-Shamir-Adleman (RSA) to encrypt files and the Advanced Encryption Standard (AES) key to encrypt the encrypted files. The hash function is used for extra key security, and Python programming language was used to implement the system, and for cloud storage, MongoDB was used. Generally, results indicate that the Double Stage Encryption (DSE) takes an average time for encryption of 83% and decryption of 75% compared to RSA and AES singly. The RSA is 68% faster than AES during the encryption process, but there is no significant difference between the two during decryption. The Avalanche effect testing showed the DSE to be 17% higher than singly testing AES and RSA, which implies it is more secure than RSA and AES as single encryption schemes. Therefore, the study recommends using DSE to secure valuable data on the cloud.

Keywords

Cloud Computing; Cryptography; Security and Privacy; Rivest-Shamir-Adleman; Advanced Encryption Standard