[keycloak-user] x509 - serial number as a HEX

Hi Everybody, is there any possibility to get Serial Number field from certificate in x509 authentication flow as a HEX value instead of Integer. I've set the x509 Direct Grant authentication flow to take Serial Number as a username, and I've expected that there will be a HEX value, which I see in certificate, but I've got Integer representation of it in my User Storage Federation's classes. Karol [https://www.adbglobal.com/wp-content/uploads/adb.png] adbglobal.com<https://www.adbglobal.com> This message (including any attachments) may contain confidential, proprietary, privileged and/or private information. The information is intended for the use of the individual or entity designated above. If you are not the intended recipient of this message, please notify the sender immediately, and delete the message and any attachments. Any disclosure, reproduction, distribution or other use of this message or any attachments by an individual or entity other than the intended recipient is STRICTLY PROHIBITED. Please note that ADB protects your privacy. Any personal information we collect from you is used in accordance with our Privacy Policy<https://www.adbglobal.com/privacy-policy/> and in compliance with applicable European data protection law (Regulation (EU) 2016/679, General Data Protection Regulation) and other statutory provisions.