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Table 5 Major advantages of BCS and CB.

From: A survey on biometric cryptosystems and cancelable biometrics

Advantage Description
Template protection Within BCSs and CB the original biometric template is obscured such that a reconstruction is hardly feasible.
Secure key release BCSs provide key release mechanisms based on biometrics.
Pseudonymous Auth. Authentication is performed in the encrypted domain and, thus, is pseudonymous.
Revocability of templates Several instances of secured templates can be generated.
Increased security BCSs and CB prevent from several traditional attacks against biometric systems.
More social acceptance BCSs and CB are expected to increase the social acceptance of biometric applications.