How do you find the signing certificate?

Document ID : KB000014222
Last Modified Date : 14/02/2018
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Introduction:

How to determine the signing certificate of a signed digital certificate.

Question:

How do I find the signing certificate or root certificates?

Answer:

Issue a TSS LIST for the certificate and look for the SIGNED BY. That is the signer.

TSS LIST that certificate to see if it has a SIGNED BY. If it does, then you have root chain.

TSS LIST that certificate and see if it has a SIGNED BY.

Keep doing this until you no longer have a SIGNED BY which means the end for the root chain.