Guest Lecture: "Finite Hidden Subgroup Problem" at Hasanuddin UniversityThesis Camp: "Hidden Subgroup Problem in Cryptography" at School of Computing, Telkom UniversityAlgebra Joint Seminar: "Hidden Subgroup and Shift Problem in Post-Quantum Cryptography" Organized by Indonesian Algebra Society"Hidden Shift Problem: A quantum cryptanalysis for LWE and Isogeny Problem" at Center for Cryptography and Cyber Security, Gadjah Mada University 