Loki: A Lightweight LWE Method with Rogue Bits for Quantum Security in IoT Devices

Internet of Things (IoT) is a platform that connects various devices through the Internet. Their abilities are limited in providing intelligent services. IoT devices are heterogeneous in nature and are able to connect sensors to simple devices that are constrained. Software and hardware attacks are a major concern in this domain. These attacks may lead to a breach of privacy, confidentiality, and malware attacks. To resolve this issue, a novel security algorithm is proposed in this paper. The proposed algorithm uses lattice-based cryptography method for encrypting gateways and cloud services and asymmetric key cryptography method for securing devices that protect the service gateways and low-energy IoT devices such as sensors. The proposed architecture uses asymmetric key cryptosystem that has nodes with a shared session key, and this session key is then further used to transfer messages. This protects the system from quantum attacks, eavesdropping, and public key attacks.