Efficient Euclidean division algorithms in some degree 8 number rings The arithmetic of number rings is a difficult topic in computational number theory. In particular, one simple question is hard to answer: can one perform Euclidean division in a given
A tale of groups and rabbits: efficient 4-dimensional isogeny computations for cryptographic group actions In the transition to post-quantum cryptography, cryptographic group actions can offer a modularity close to pre-quantum discrete logarithm problems. Not only can this modularity be used
Is module-lattice reduction better than unstructured lattice reduction This question was highlighted `Q8' in the Kyber NIST standardization submission (Avanzi et al., 2021), as potentially affecting the concrete security of Kyber and other module-lattice based schemes. Foundational works on module-lattice