Abdelrahman Altigani ¹, Muawia Abdelmagid ¹, Bazara Barry ²

Affiliations
1 Department of Mathematics, College of Science (Dammam), University of Dammam, Eastern Province, SA
2 Departement of Computer Science, Faculty of Mathematical Sciences, University of Khartoum, Khartoum, SD

Abstract

When using a symmetric encryption algorithm, specifically the AES, the Block Cipher Mode of Operation to be used must be specified. Usually choosing the mode of operation is influenced by two main factors: 1. Security; and the 2. Performance of the mode. Most of the related literature explores the security of the modes. In contrast, this research paper explores, compares and evaluates the performance of the five modes of operation recommended by the National Institute of Standards and Technology (NIST). A code using Crypto++ cryptographic library has been developed to benchmark the performance of these modes. Based on the conducted experiments and obtained results, the Counter mode of operation has been found generally superior to the other four modes of operation in terms of performance especially when increasing the input size.

Keywords

Confidentiality, Cryptography, Efficiency, Evaluation, Symmetric Encryption.

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Abdelrahman Altigani ¹, Siti Mariyam Shamsuddin ²

Affiliations
1 UTM Big Data Centre. Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia,81310 Skudai, Johor, MY
2 Faculty of Computing, Universiti Teknologi Malaysia, 81310 Skudai, Johor, MY

Abstract

Cryptography provides a security backbone for most Electronic-Services (E-Services). Computer systems’ users trust encryption techniques and protocols as robust mechanisms that deliver the required security services. Therefore, security researchers should act proactively to identify and resolve potential threats in current security schemes in order to preserve this relation of trust between average users and Secure E-Services. This research paper aims to address some of the potential threats in order to urge scholars to take action towards discussing and resolving them.

Keywords

Certification Authority, Cryptography, Cryptanalysis, Information Security, Security Breaches

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