Secure Cryptographic System Using Face Biometrics

Face biometric approach can be applied for a wide variety of problems for individual identification and verification. This leads to identification of persons based on their physiological and behavioral traits. Users cannot easily remember complex and long cryptographic keys, in this approach users need not remember the keys, and the keys cannot be easily stolen or cracked by attackers as they are lacking sufficient knowledge of biometric features. In this paper we propose powerful method based on face biometrics. The main objective is to increase the security in communication of information on internet, as with increase in use of internet information security is becoming more and more important. This proposed system uses graph representation based on face feature extraction and its further use in secret key generation for implementing the DES algorithm. This proposed system uses face image as an input from the publically available database and locates total 13 landmark points on image and construct fully connected graph considering landmark points as nodes, 64-bit sub key is generated using Eigen vector of adjacency matrix as seed from graph. Encryption of the information is performed using 64-bit key same method is employed for decryption using DES algorithm.