  The Ukraine power grid cyberattacks remind us that the smart Internet of
Things (IoT) can help us control our light-bulbs, but if under attacks it might
also take us into darkness. Nowadays, many literatures have tried to address
the concerns on IoT security, but few of them take into consideration the sever
threats to IoT coming from the advances of quantum computing. As a promising
candidate for the future post-quantum cryptography standard, lattice-based
cryptography enjoys the advantages of strong security guarantees and high
efficiency, which make it extremely suitable for IoT applications. In this
paper, we summarize the advantages of lattice-based cryptography and the state
of art of their implementations for IoT devices.
