Abstract
In this paper we investigate the security margin of MORUS-an authenticated cipher taking part in the CAESAR competition. We propose a new key recovery approach, which can be seen as an accelerated exhaustive search. We also verify the resistance of MORUS against internal differential and rotational cryptanalysis. Our analysis reveals that the cipher has a solid security margin and a lack of round constants does not bring any weakness. Our work helps to reliably evaluate this new, high-performance algorithm, which is particularly important in the context of the ongoing CAESAR competition.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017) : Volume 4: SECRYPT |
| Editors | Pierangela Samarati, Mohammad S. Obaidat, Enrique Cabello |
| Number of pages | 10 |
| Publisher | SCITEPRESS Digital Library |
| Publication date | 2017 |
| Pages | 275-284 |
| ISBN (Electronic) | 9789897582592 |
| DOIs | |
| Publication status | Published - 2017 |
| Externally published | Yes |
| Event | 14th International Joint Conference on e-Business and Telecommunications. ICETE 2017 - Madrid, Spain Duration: 24 Jul 2017 → 26 Jul 2017 Conference number: 14 |
Conference
| Conference | 14th International Joint Conference on e-Business and Telecommunications. ICETE 2017 |
|---|---|
| Number | 14 |
| Country/Territory | Spain |
| City | Madrid |
| Period | 24/07/2017 → 26/07/2017 |
| Sponsor | Institute for Systems and Technologies of Information, Control and Communication, Object Management Group, The Foundation for Intelligent Physical Agents, Workflow Management Coalition |
| Series | Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017) |
|---|---|
| Volume | 4 |
| ISSN | 2184-2825 |
Keywords
- Authenticated Encryption
- MORUS
- Rotational Cryptanalysis
- Internal Differential Cryptanalysis
- CAESAR Competition