Abstract—Biometric unique authentication approach on encrypted message provides a totally secured information delivery without any need to hide any password or secret key. We present the usage of biometrics technique in asymmetric cryptographic domain where we protect secret key involved in cryptographic with the help of fuzzy vault created by randomizing the palm print feature with the secret key. This paper therefore uses the polynomial construction on the secret key using appropriate mapping function and taking the projection of palm print feature on the polynomial constructed which together makes the fuzzy vault. Vault can be unlocked with authentication and polynomial is reconstructed using Lagrange’s interpolation. Secret key is retrieved from reconstructed polynomial and corrected with Reed & Solomon (RS) codes. The results shows that 309-bit RSA keys can be secured with palm print based fuzzy vault using the proposed system.
Index Terms—RSA; Lagrange’s interpolation; RS codes; Galois field; PCA technique; Eigen values.
Om Prakash Verma is with the Department of Information Technology, Delhi College of Engineering, Delhi, India (e-mail: email@example.com).
Devesh Bharathan is with the Department of Information Technology, Delhi College of Engineering, Delhi, India (e-mail: firstname.lastname@example.org).
Cite: Om Prakash Verma and Devesh Bharathan, "A New Palm Print Based Fuzzy Vault System for Securing Cryptographic Key," International Journal of Information and Electronics Engineering vol. 2, no. 2, pp. 289-292, 2012.