Subscriber Data Management System Based on Blockchain
Qi Xia, Jianbin Gao, Daniel Adu Worae, Isaac Amankona Obiri, Kwame Omono Asamoah · 2023
Many people, businesses, and Internet of Things integrated sectors generate massive volumes of valuable data on a regular basis, which may be beneficial to other people and enterprises. Future trends are efficiently examined using this data to make the proper judgments based on facts and numbers. However, because of key difficulties such as data security, privacy, and access control, data providers are unwilling to share their data with others unless a safe data-sharing platform is available. Moreover, existing data sharing services rely on a reliable third party (TTP). Because TTP is involved, such systems lack trust, transparency, security, and immutability. To address these concerns, this chapter offers a novel idea of a subscriber data management and authorization method that combines distributed ledger technology such as blockchain and interplanetary file system (IPFS) which makes use of distributed hash table (DHT). Furthermore, by integrating authentication, authorization, and access control in the blockchain platform, relevant processes are developed to assure subscriber control over personal subscription data by using ciphertext-policy attribute-based encryption. Off-chain data storage architecture is utilized to prevent blockchain bloat and privacy concerns created by blockchain transparency, and it is achieved in the form of IPFS and DHT for its expressive qualities such as scalability and look-up speed. The suggested approach achieves transparency, security, access control, and data integrity.