08-01-2014, 02:58 PM
Privacy Protection in Facial biometric Systems
Abstract
The security and trust in using biometrics as a mean to verify the authenticity entirely lies in preserving the privacy of digital biometric data (e.g., face images) stored in a central database. The possibility of using visual cryptography and steganography for imparting privacy to biometric data such as fingerprint images, iris codes, and face images is explored. The biometric information such as the private face image is decomposed into two host face images (known as sheets, shares or transparencies) that are stored in two separate database tables such that the private image can be revealed only when both sheets are simultaneously available, and the individual sheet images do not reveal the identity of the private image. In order to provide an extra level of security, the concept of steganography is also included in the proposed project. The username and password which is used for the authentication of the user is stored in a hidden format using steganography. The username and password are stored in the transparencies of the face image. The combination of biometrics, visual cryptography and steganography in the proposed system with mutually interconnected security mechanism provides the best authentication system.
Abstract
The security and trust in using biometrics as a mean to verify the authenticity entirely lies in preserving the privacy of digital biometric data (e.g., face images) stored in a central database. The possibility of using visual cryptography and steganography for imparting privacy to biometric data such as fingerprint images, iris codes, and face images is explored. The biometric information such as the private face image is decomposed into two host face images (known as sheets, shares or transparencies) that are stored in two separate database tables such that the private image can be revealed only when both sheets are simultaneously available, and the individual sheet images do not reveal the identity of the private image. In order to provide an extra level of security, the concept of steganography is also included in the proposed project. The username and password which is used for the authentication of the user is stored in a hidden format using steganography. The username and password are stored in the transparencies of the face image. The combination of biometrics, visual cryptography and steganography in the proposed system with mutually interconnected security mechanism provides the best authentication system.