Application of Visual Cryptography to Biometric Authentication
Nazanin Askari, Cecilia R. Moloney, Howard M. Heys · 2011
Over the past few years, increasing concern over personal information in computer systems has increased interest in data security. This paper reviews and applies visual cryptography, a perfectly secure method of keeping images secret, for possible use in biometric identification and protection. The basic concept of visual cryptography is to divide secret images into random shares. Decryption is performed by superimposing the shares. Hence the process does not require any special software or hardware device for cryptographic computations. In this work, we review some visual cryptography schemes and apply them to biometric data such as fingerprint images for the purpose of user authentication.