Postquantum cryptography, part 2

Abstract

This is part 2 of IEEE Security & Privacy magazine's special issue on Postquantum Cryptography. As explained in the introduction to part 1, public-key cryptography is indispensable for the security of open computer networks, particularly the Internet. Because of public-key cryptography's relevance and quantum computers' increasingly realistic threat to this technology, it's necessary to come up with practical and secure postquantum cryptography - that is, public-key cryptography that can be expected to resist quantum computer attacks.