- International Journal of Information Security Science
- Vol: 9 Issue: 3
- Analysis of Ascon, DryGASCON, and Shamash Permutations
Analysis of Ascon, DryGASCON, and Shamash Permutations
Authors : Cihangir Tezcan
Pages : 172-187
View : 15 | Download : 6
Publication Date : 2020-09-01
Article Type : Research
Abstract :Ascon, DryGASCON, and Shamash are submissions to NIST's lightweight cryptography standardization process and have similar designs. We analyze these algorithms against subspace trails, truncated differentials, and differential-linear distinguishers. We provide probability one 4-round subspace trails for DryGASCON-256, 3-round subspace trails for \DryGASCON-128, and 2-round subspace trails for \Shamash permutations. Moreover, we provide the first 3.5-round truncated differential and 5-round differential-linear distinguisher for DryGASCON-128. Finally, we improve the data and time complexity of the 4 and 5-round differential-linear attacks on Ascon.Keywords : Lightweight cryptography, Authenticated encryption, Cryptanalysis