Privacy Preserving Technologies

As the digital world continues to undergo fast change, the need of privacy-preserving technology has increased significantly in order to protect personal data from being accessed and used inappropriately by unauthorised parties. Blockchain technology, the Internet of Things (IoT), and biometrics are all investigated in this study as potential key components for improving privacy and security. A robust framework for securing transactions and data exchanges, ensuring transparency and integrity, is provided by blockchain technology, which features a decentralised and immutable data ledger. Concerns about privacy are raised as a result of the huge volume of sensitive data that is created and transferred by the Internet of Things (IoT), which connects a wide variety of devices. The purpose of this study is to investigate the application of blockchain technology for the purpose of securing Internet of Things settings, with the goal of preserving data integrity and user privacy. Moreover, biometrics, which are a kind of identification and verification that makes use of distinctive physical or behavioural features, are an essential component in the process of enhancing access control and personalised security. Within the scope of this article, we address recent developments in biometric technologies and how they might be used with blockchain technology to provide systems that are both safe and enhance privacy. This study illustrates the potential of various technologies to create a complete framework that protects individuals' privacy and solves the difficulties and possibilities that are presented by the digital age. This potential is shown by analysing the intersection of many technologies.