Feature Based Encryption Technique for Securing Forensic Biometric Image Data Using AES and Visual Cryptography

With the current emergence of biometric image data applications on devices such as smart phones, security cameras, personal computers etc, there is a need for securing the image templates obtained from crime scenes as well as such devices before storing them in locations such as the cloud etc. In this paper, we proposed an encryption technique of securing the biometric image data collected from devices with an approach of feature based encryption technique. The biometric image data was encrypted using advanced encryption process and visual cryptography method. The method engaged the encrypted feature extracted from the plain image in the encryption process and used in to encrypt the image based on a visual cryptographic technique. Analysis of the plain and ciphered image was done and there was no pixel expansion in the process. The implementation was done using MATLAB.