Fingerprint Secure Authentication with distributed keys

Nowadays, when biometric identification is widely used, privacy protection in identification has become a very important issue. In recent years, many scholars have contributed to the biometric authentication with cryptography, but currently, the management of decryption keys still faces great difficulties. Therefore, we propose a fingerprint confidential authentication system that can divide the key into parts, and the user and the server each keeps a part of the private key separately, which greatly improves the overall security of the system. In this paper, we describe the operation process of the system in detail and prove the correctness and security of this scheme. The results show that our construction is effective and the overall performance is better than existing related schemes.