Date Added: Feb 2011
Human users find hard to remember lengthy 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 repeatable cryptographic keys. The authors' goal is to integrate the volatility of the user's biometric features into the generated key, so as to construct the key unpredictable to a hacker who is deficient of important knowledge about the user's biometrics. In their earlier research, they have incorporated multiple biometric modalities into the cryptographic key generation to provide better security.