A Cross Domain Authentication Scheme Based on Blockchain

Modern internet applications exhibit characteristics of distribution and diversity. Cross-domain authentication becomes necessary when applications or services are located in different domains. The security and efficiency of information interaction is closely related to the security and efficiency of cross-domain authentication. Existing cross-domain authentication models mostly rely on trusted third parties, which pose heavy key management and private key escrow problems. A secure and efficient cross-domain authentication scheme based on blockchain is proposed in this text. The scheme uses hash function and digital signature to ensure the reliability of foreign user identity. The proposal introduces blockchain and some ideas of the Open Shortest Path First (OSPF) dynamic routing protocol.