APRNET: Achieving Privacy-Preserving Real-Name Authentication over Blockchain for Online Services

With the proliferation of mobile Internet applications, online services become a double-edge sword to our daily life, wherein security and privacy are notable. To ensure data security, service providers may require users to register using real-name data. Thus, verifying the real-name information without privacy leakage is critical. In this paper, we propose a privacy-preserving real-name authentication scheme based on a classic blockchain paradigm, named APRNET. By taking advantages of cloud-enabled trusted authorities and bilinear pairing, APRNET verifies users' data in an encrypted form, which guarantees data security and user privacy. Detailed security and performance analysis validate the effectiveness of APRNET.