ITU-T X.1088 PDF

A general framework of biometric digital key is required in order to provide enhanced cryptographic secure authentication and security on telebiometric system. This Recommendation specifies a framework for biometric digital key generation and protection using biometric template with public key certificate and biometric certificate in order to provide secure authentication process on open network environments. This Recommendation also describes the security requirements in biometric digital key generation and protection for providing biometric authentication and secure communication.

However, this Recommendation does not cover the methodology of biometric digital key generation in detail because many different kinds of mechanisms can be used for generating and deriving biometric digital key from biometric template. And it also does not specify the detailed telebiometric system mechanism on biometric digital key generation and protection, as many models or system architecture can be used on biometric digital key on open network.