Evil Corp Hacker Group Changes Ransomware Tactics After U.S. Sanctions
The Evil Corp Russian hacker group has reportedly changed its attack tactics to avoid sanctions placed on US companies prohibiting...
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$mathfrak{i}$-TiRE: Incremental Timed-Release Encryption or How to use Timed-Release Encryption on Blockchains?
Timed-release encryption can encrypt a message to a future time such that it can only be decrypted after that time....
Genus Two Isogeny Cryptography
We study $(ell,ell)$-isogeny graphs of principally polarised supersingular abelian surfaces (PPSSAS). The $(ell,ell)$-isogeny graph has cycles of small length that...
Give Me 5 Minutes: Attacking ASCAD with a Single Side-Channel Trace
In this note, we describe an attack against the ANSSI Side-Channel Analysis Database (ASCAD), which recovers the full key using...
Property-Preserving Hash Functions for Hamming Distance from Standard Assumptions
Property-preserving hash functions allow for compressing long inputs $x_0$ and $x_1$ into short hashes $h(x_0)$ and $h(x_1)$ in a manner...
A Power Side-Channel Attack on the Reed-Muller Reed-Solomon Version of the HQC Cryptosystem
The code-based post-quantum algorithm Hamming Quasi-Cyclic (HQC) is a third round alternative candidate in the NIST standardization project. For their...
Revisiting Related-Key Boomerang attacks on AES using computer-aided tool
In recent years, several MILP models were introduced to search automatically for boomerang distinguishers and boomerang attacks on block ciphers....
Quantum Time/Memory/Data Tradeoff Attacks
One of the most celebrated and useful cryptanalytic algorithms is Hellman's time/memory tradeoff (and its Rainbow Table variant), which can...
Private Remote Sources for Secure Multi-Function Computation
We consider a distributed function computation problem in which parties observing noisy versions of a remote source facilitate the computation...
An Effective Lower Bound on the Number of Orientable Supersingular Elliptic Curves
In this article, we prove a generic lower bound on the number of $mathfrak{O}$-orientable supersingular curves over $mathbb{F}_{p^2}$, i.e curves...
