
blhi5 (blhi5) asked a question.
SigningKeyNotFoundError
Hello would appreciate an assist
while we are able to simulate a call through the Okta admin tool
we fail when trying locally or on our servers with the error
SigningKeyNotFoundError
Unable to find a signing key that matches '{some-key}'
Error while resolving signing key for kid "{some-key}"
we double-checked that the issuer, client & audience are correct
what steps should I take to find the issue ?
thank you

Hi Vadim,
did you double check the IDP certificate which is used for signature validation ? It looks like the in correct certificate issue. Please check that & confirm !!
Hello Sandeep
Thank you for your quick response
I could find my IDP by going to Okta>Security>API>Default>Token Preview
and after previewing the token I got the IDP
But I am really not sure where I should validate that signature
Could you please elaborate on that
Thank you
Can you try to get the token via Postman & then do the signature validation on https://jwt.io
In the Okta Preview Token Tab it doesnt shows the signature validation. it shows only Payload & Header information.