Post Quantum and Lattice Cryptography Questions

Deep understanding of post quantum cryptography and lattice based constructions, including the security foundations, representative schemes, and practical deployment challenges. Topics include why quantum computing threatens existing public key algorithms, the design and properties of lattice based schemes, migration and hybrid deployment strategies, performance and bandwidth impacts, interoperability and backward compatibility concerns, standardization and testing considerations, and operational risks such as harvest now decrypt later. Candidates should be able to discuss timelines, mitigation planning, and trade offs when introducing quantum resistant algorithms at scale.