The boomerang attack is a cryptanalysis technique that combines two short differentials
instead of using a single long differential. It has been applied to many primitives, and results …

The desirable encryption scheme possesses high PRF security, high efficiency, and the
ability to produce variable-length outputs. Since designing dedicated secure PRFs is …

In order to maintain a similar security level in a post-quantum setting, many symmetric
primitives should have to double their keys and increase their state sizes. So far, no generic …

In this work, we propose a construction of 2-round tweakable substitutionpermutation
networks using a single secret S-box. This construction is based on non-linear permutation …

In meet-in-the-middle (MITM) attacks, the sizes of the precomputation tables determine the
effectiveness. In this paper, value constraints are presented to reduce the size of the …

At ASIACRYPT 2017, Rønjom et al. analyzed AES with the yoyo attack. Similar to their 4-
round AES distinguisher, Grassi proposed the 4-round mixture differential cryptanalysis as …

This article gives a rigorous mathematical treatment of generalized and closed loop
invariants (CLI) which extend the standard notion of (nonlinear) invariants used in the …

Abstract The security of Advanced Encryption Standard (AES) is one of the most important
issues in cryptanalysis. In ToSC 2020, Bao et al. proposed an open question about the …

With the rising popularity of the internet and the widespread use of networks and information
systems via the cloud and data centers, the privacy and security of individuals and …

In order to maintain a similar security level in a post-quantum setting, many symmetric
primitives should have to double their keys and increase their state sizes. So far, no generic …