Security, Privacy Challenges and Solutions for Various Applications in Blockchain Distributed Ledger for Wireless-Based Communication Networks

Abstract

AbstractBlockchain is a secure computing technology which could be used in a variety of applications like finance, supply chain management, land registry, health care, and education. To obtain services from various service providers, users or consumers register with the Registration Center Authority (RAC) via., wireless communications networks. However, RAC has flaws such as insider threat and Single Point of Failure (SPoF). To circumvent these problems, if user registration based on blockchain for any service is required through wireless communication networks and also blockchain networks has the Distributed Ledger (DL) for storing identity information about the users or consumers. In this chapter, we will discuss about the security and privacy issues that come with each of the applications mentioned above and also some of the key challenges in each applications such as data confidentiality, integrity, authentication, access control, and privacy. Public Key Infrastructure (PKI) is giving the solution for data confidentiality, integrity, and authentication. Access control is processed by the access control policies (to restrict the user permission) and the privacy is achieved through secure authentication.KeywordsPrivacySecurityDistributed ledger (DL)AuthenticationAccess controlHealth careBankingSupply chain management6G5G