Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Process that happen if certificate is not trusted

Dear All,


I want to know what process will happen if i make a connection to server using https where the certificate is not trusted? I know there is digital signature on the certificate that need to be checked if we made https request to the server. Is the digital signature will not be checked if i still proceed with the untrusted certificate? Need some clarification about this process. Thanks before.






Alkuin Melvin

Hall of Fame Super Silver

Generally speaking you will

Generally speaking you will have to override the browser's automatic checking of certificates to establish trustworthiness as a prerequisite for secure communications.

The signature is still checked and the browser will usually tell you via some sort of error message what about the certificate makes it untrusted (unknown signing authority, expired certificate, etc.). The end user then needs to make an informed decision manually on a case-by-case basis to decide whether or not to trust the certificate.