Vadim Lyubashevsky is a cryptographer at IBM Research Europe in Zurich. He received his PhD from the University of California, San Diego in 2008. His core research focus is around lattice-based methods, and especially in areas of practical lattice encryption, digital signatures and privacy-preserving primitives. Along with Chris Peiker and  Oded Regev (the inventor of LWE), he published a classic paper entitled "On ideal lattices and learning with errors over rings", which has been used as a foundation for lattice methods within post-quantum cryptography.  Vadim has worked in many areas of cryptography, including Zero Knowledge Proofs, Blind Signatures and Multiparty Computation. Google Scholar: https://scholar.google.com/citations?user=4H1u8swAAAAJ&hl=en&oi=ao