Vadim Lyubashevsky is a principal researcher in the cryptography group at IBM Research Europe in Zurich. His main area of research is post-quantum cryptography based on the hardness of lattice problems. In particular, he has done extensive foundational work on constructions of efficient cryptographic primitives, including encryption, digital signatures, and zero-knowledge proofs, based on the hardness of ideal-lattice problems. His research is currently supported by an ERC Consolidator grant PLAZA.