[OpenSIPS-Users] Stir Shaken Verification issue

Devang Dhandhalya devang.dhandhalya at ecosmob.com
Mon Apr 25 12:47:47 UTC 2022

Hello All

I am testing STIR/SHAKEN calls using two servers.
calls originating to the first server adding identity header and when
sending calls to the second server for verification service at the time of
verification service i am getting below error .

error :437 , Unsupported Credential , Verification Fails with Return code
:-8 INFO:stir_shaken:verify_callback: certificate validation failed: self
signed certificate INFO:stir_shaken:w_stir_verify: Invalid certificate
OpenSIPS Version : 3.2.2 I generate certificate using domain which mapped
with those 2 server :
When the same server generates an identity header and verifies it at that
time not getting an issue call is working fine but when the identity header
generated by server 1 and going to verify it by server 2 we get this above
Is it related to the URL which is in the info param ? When I open that URL
in the browser I am able to see the certificate.

Please suggest a solution for this issue.

Devang Dhandhalya

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