A key agreement scheme for smart cards using biometrics
Bhaskar Mondal, Anirban Bhowmick, Tanupriya Choudhury, Tarni Mandal · 2016
Locking the cryptographic key is as imperative as the security of the confidential data. A secure key agreement protocol ensures a secure session between two or more parties. Once a key has been shared, the users can communicate resourcefully. The authors look to certify secure key sharing making use of a transmitter engendered vth order polynomial and the users personal biometrics like fingerprints. Genuine points are generated, using the key and the biometrics, which lie on the polynomial. Chaff points are added in order to upsurge confusion and augment security. These points united with the Message Authentication Code (MAC) of the key and timestamp form the fuzzy vault which is communicated to the other end. The receiver needs to select the genuine points using the biometric features to retrieve the cryptographic key.