To prove ownership of an ITU-T X.509 certificate registered individually with the registration authority (RA), a biometric hardware security module has been considered to provide a high-level biometric authentication. ISO/IEC 17922:2017 provides a framework for telebiometric authentication using BHSM.

Within the scope of ISO/IEC 17922:2017, the following issues are addressed:

- telebiometric authentication mechanisms using BHSM in telecommunication network environments; and

- abstract syntax notation one (ASN.1) format and protocols for implementing the mechanisms in the ITU‑T X.509 framework.