Radius Authentication return Hex string. How to convert it to string

We are using VMware Horizon client to launch VDI instance with two-factor using radius authentication. The two-factor authentication is based on security question and answer. We also have users using regional languages (Spanish, french, Chinese, etc.). The security question and answers in regional language contains non-printable special character. The APM converts the radius authentication security question into HEX (not in string), because questions contain non-printable character for the regional languages. The radius authentication variable session.radius.last.attr.reply-message return in HEX value and dispay in the VMware Horizon VDI client. How do i covert the radius authentication security question from HEX to string (binary) so that it can be shown properly in the VMware Horizon VDI client. Other variables "session.radius./Common/iApp_Vmware_Vdi_Prod.app/twofactor_authentication_act_radius_auth_ag.attr.reply-message" and "session.logon.page.password.desc" also contains the HEX value.

 

Any Help.

 

Raghbir