Batch Verification of Digital Signatures In Iot

Abstract

Internet of Things (IoT) is the interconnectivity of various devices, such as sensor newlinenodes, actuator nodes, gateway nodes, and other devices that have the software, and newlineelectronics embedded within them which enables them to exchange data. These devices newlinelack the computation power, memory and battery capacity. The gateway node in IoT newlinehandles various responsibilities such authentication, verification, data processing, data newlineencryption, decryption etc. Hence it is important to reduce the bottleneck at the gateway newlinenode, so that the network is stable and secure. Therefore security in IoT becomes an newlineimportant field of research. Digital signatures are one of the ways of authenticating newlinethe sender and also to protect the integrity of the data during the communication. newlineVerifying multiple digital signatures together in a batch reduces the computation load newlineand computation time during verification. There are many batch verification schemes newlinedesigned for popular digital signature algorithms such as RSA, DSS, ECDSA etc. newlineMajority of the batch verification schemes are not lightweight and are prone to attacks. newlineEven though the contemporary batch verification schemes have evolved with time, newlinebut they are not scalable with the increase in batch size. Therefore this research focuses newlineon designing a new batch verification scheme which overcomes the drawbacks and is newlinesuitable for IoT. ECDSA digital signature algorithm is a lightweight digital signature newlinealgorithm because of its small signature size compared to other schemes for the same newlinelevel of security. Hence designing a batch verification algorithm for ECDSAand#8727; newlinesignatures newlineis beneficial in IoT. ECDSAand#8727; newlinesignature is a modified version of ECDSA signature whose newlineverification time is faster than ECDSA signatures. The proposed batch verification newlinescheme in the research is efficient for verification of multiple ECDSAand#8727; newlinesignatures and newlineis more secure than the other existing batch verification schemes. newlineMost of the other existing batch verification schemes do not specify the index of newlinethe bad signature.