Questions & answers on technical requirements to use the Union Registry

Since 15 October 2015 access to the Union Registry is restricted to web browsers supporting version 1.2 of the Transport Layer Security (TLS) protocol. Since this date, a connection to the Union Registry with less secure protocols is not accepted.  Most of the recent browsers (Chrome, Firefox, Internet Explorer and Safari) support TLS v1.2 by default.


1. What is Transport Layer Security (TLS)?

TLS secures the transport of sensitive data by encrypting the network tunnels along which information moves. In other words, TLS is the mechanism that protects the confidentiality and integrity of all information entered by those using the Union Registry via their web browser.


2. Why do I need to use TLS 1.2 to use the Union Registry?

TLS 1.2 has been updated to improve the security of operations in the Union Registry. TLS 1.2 was defined in 2008 and all major web browsers now support it by default. Since 2012, the Union Registry has maintained compatibility with previous versions of TLS, but since 15 October 2015, connections with older Versions no longer work.


3. How do I check that my Web browser is compatible with TLS 1.2?

All recent browsers (Chrome, Firefox, Internet Explorer and Safari) support TLS v1.2 by default:

  • Chrome, version 33 and above
  • Firefox, version 34 and above
  • Internet Explorer, version 11
  • Safari, version 7 and above

To verify that your browser supports TLS 1.2 go to our webportal and click on the link "Login Union Registry". If the Welcome page of the Union Registry is displayed, TLS 1.2 is supported by your browser and no further steps are needed.  If the Welcome page of the Union Registry is not displayed, your browser does not support TLS 1.2. In this case login to the Union Registry is not possible and you should update to the latest version of your browser or choose an alternative browser.