In this paper, we introduce a new lightweight 64-bit block cipher PIPO (PIPO stands for “Plug-
In” and “Plug-Out”, representing its use in side-channel protected and unprotected …

We introduce SPEEDY, a family of ultra low-latency block ciphers. We mix engineering
expertise into each step of the cipher's design process in order to create a secure encryption …

A recent study suggests that arithmetic masking in prime fields leads to stronger security
guarantees against passive physical adversaries than Boolean masking. Indeed, it is a …

Bit permutations are efficient linear functions often used for lightweight cipher designs.
However, they have low diffusion effects, compared to word-oriented binary and maximum …

An optimized implementation of S-boxes has a significant impact on the performance of
cryptographic primitives. SAT-based methods can find optimal implementations for …

Side-channel attacks extracting sensitive data from implementations have been considered
a major threat to the security of cryptographic schemes. This has elevated the need for …

In this paper we formulate and re-evaluate a recently proposed randomization-based side-
channel protection mechanism. The strength of the construction lies with its ability to comply …

Low-latency masked hardware implementations are known to be a difficult challenge. On the
one hand, the propagation of glitches can falsify their independence assumption (that is …

The substitution box (S-box) is an important nonlinear component in most symmetric
cryptosystems and thus should have good properties. Its difference distribution table (DDT) …

With the enormous increase in portable cryptographic devices, physical attacks are
becoming similarly popular. One of the most common physical attacks is Side-Channel …