Secure and efficient scheme to construct a cancelable fingerprint template
安全高效的可撤销指纹模板构造

Fingerprint encryption is one of the most active research domains in biometrics recognition. However, fingerprints are human inherent characteristics, which are associated with one person permanently and cannot be changed. Once one fingerprint template is compromised, it is permanent. In order to avoid the loss of fingerprint templates, a set of irreversible transform functions, which are based on the Butterworth Low Pass Filter, are proposed. They transfer the original fingerprint templates to cancelable fingerprint templates. Those cancelable templates,stored in different recognition system, are different and irreversible, which can overcome the security limitations caused by the invariance and openness of the fingerprint templates. Experiments regarding matching precision, irreversibility and transform efficiency show that this scheme has high performance on authentication, security and computation.