Abstract: There is disclosed an n-dimensional biometric security system as well as a method of identifying and validating a user through the use of a automated random one-time passphrase generation. The use of tailored templates to generate one-time phase phrase text as well as the use of update subscriptions of templates ensures a high level of security. A verification session preferably uses short, text-independent one-time pass phrases and secure audio tokens with master audio generated from an internal text-to-speech security processor. An automated enrollment process may be implemented in an ongoing and seamless fashion with a user's interactions with the system. Various calibration and tuning techniques are also disclosed.

Abstract: There is disclosed an n-dimensional biometric security system as well as a method of identifying and validating a user through the use of a automated random one-time passphrase generation. The use of tailored templates to generate one-time phase phrase text as well as the use of update subscriptions of templates ensures a high level of security. A verification session preferably uses short, text-independent one-time pass phrases and secure audio tokens with master audio generated from an internal text-to-speech security processor. An automated enrollment process may be implemented in an ongoing and seamless fashion with a user's interactions with the system. Various calibration and tuning techniques are also disclosed.