A Dual-Mode Fingerprint Fusion Encryption Method Based on Fuzzy Vault

Fuzzy vault can be used as an encryption framework to protect the user´s identity key using the biometric. This framework can provide a balance between fuzzy biometric and the accuracy of cryptography system. In this paper, we propose a method to fuse multi-biometrics and encrypt the key of users based on fuzzy vault. We test this method using the multibiometrics from the same source database made by Shandong University, and the results show the proposed method is more effective.