RSA Cryptographic Key Generation Using Fingerprint Minutiae

Abstract

Human users find difficult to remember long cryptographic keys. Therefore, researchers, for a long time period, have been investigating ways to use biometric features of the user rather than memorable password or passphrase, in an attempt to produce tough and unrepeatable cryptographic keys and to construct the key unpredictable to a hacker who is deficient of important knowledge about the user's biometrics. In this paper, generating the strong bio-crypt key based on fingerprint minutiae is presented. At first, the minutiae points are extracted from the fingerprint image based on image processing algorithms. Then, the extracted fingerprint minutiae are used for generating a 1024 bit prime numbers that used in RSA cypher algorithm to generate 2048 cryptographic key.

Keywords

• biometrics, cryptography, fingerprint, rsa, morphological operation, minutiae points.