Biometrics identifies/verifies a person using his/her physiological or behavioral
characteristics. It is becoming an important ally for law enforcement and homeland security.
However, there are some safety and privacy concerns: biometric based systems can be accessed
when users are under threat, reluctant or even unconscious states. In this paper, we introduce a
new method which can identify a person and detect his/her willingness. Our experimental results
show that the new approach can enhance the security by checking the consent signature while
achieving very high recognition accuracy.
Key management is one of the most important issues in cryptographic systems. Several important challenges in
such a context are represented by secure and efficient key generation, key distribution, as well as key revocation.
Addressing such challenges requires a comprehensive solution which is robust, secure and efficient. Compared to
traditional key management schemes, key management using biometrics requires the presence of the user, which
can reduce fraud and protect the key better. In this paper, we propose a novel key management scheme using
iris based biometrics. Our newly proposed scheme outperforms traditional key management schemes as well as
some existing key-binding biometric schemes in terms of security, diversity and/or efficiency.
The iris is a stable and reliable biometric for positive human identification. However, the traditional
iris recognition scheme raises several privacy concerns. One's iris pattern is permanently bound
with him and cannot be changed. Hence, once it is stolen, this biometric is lost forever as well as all
the applications where this biometric is used. Thus, new methods are desirable to secure the
original pattern and ensure its revocability and alternatives when compromised. In this paper, we
propose a novel scheme which incorporates iris features, non-invertible transformation and data
encryption to achieve "cancelability" and at the same time increases iris recognition accuracy.
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