Two paper are to be presented at PQCrypto 2019 this May: Round5: Compact and Fast Post-Quantum Public-Key Encryption, in collaboration with Hayo Baan, Sauvik Bhattacharya, Scott Fluhrer, Oscar Garcia-Morchon, Thijs Laarhoven, Ronald Rietman, Markku-Juhani O. Saarinen, Ludo Tolhuizen; and Cryptanalysis of an NTRU-based Proxy Encryption Scheme from ASIACCS’15 in collaboration with Zhen Li and Yanbin Pan.