How to Assess Security and Efficiency of Authenticated Encryption Algorithms
S.E. ULUSOY Orhun Kara M.Önder EFE
AbstractAuthenticated encryption is a special form of cryptographic system providing two main services at the same time with a single key: confidentiality and authentication. In 2013, ICRC called authenticated encryption candidates to the CAESAR competition to define a widespread adaptable authenticated encryption algorithm having advantages over AES-GCM. In this study, to analyze competing algorithms, we constitute an extensive metric set by reviewing previous studies and candidate cipher reports. We constitute a metric set composed of all structural metrics mentioned in previous studies. Then, we develop a grading policy for each metric and evaluate ciphers’ performance and security. Improvable parts of cipher structures are deduced and listed. Finally, possible future work suggestions are listed to extend metric list and to design better cipher structures.