Research on State Collisions of Authenticated Cipher ACORN

DOI

10.2991/icsmim-15.2016.85How to use a DOI?

Keywords

CAESAR, ACORN, State Collision, Message Authentication.

Abstract

This paper analyzes the authentication security of lightweight authenticated cipher ACORN, a second-round candidate of the CAESAR competition. We first put forward the necessary and sufficient conditions for state collisions of ACORN. Then we point out the errors of the designer’s analysis and utilize a reverse derivation method to find proper input differences to the registers which can ensure that the state differences get eliminated in certain rounds. Last but not least, we redefine the differential properties of the overall feedback function to compute the probability of state collisions more precisely and improve the security margin of ACORN given by the designer.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Pei Zhang
AU  - Jie Guan
AU  - Junzhi Li
AU  - Tairong Shi
PY  - 2016/01
DA  - 2016/01
TI  - Research on State Collisions of Authenticated Cipher ACORN
BT  - Proceedings of the 2015 4th International Conference on Sensors, Measurement and Intelligent Materials
PB  - Atlantis Press
SP  - 459
EP  - 465
SN  - 2352-538X
UR  - https://doi.org/10.2991/icsmim-15.2016.85
DO  - 10.2991/icsmim-15.2016.85
ID  - Zhang2016/01
ER  -