Oauth Access token with public/private key approach

Questions OAuth/OIDC
1

Hi Team,

I am trying to Hit a post request from postman to get the access token, this is the below request i invoked, got the following error msg : The client_assertion signature is invalid:

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image1340×722 60.4 KB

My Jwt looks like this:

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image851×508 18.3 KB

Note: For the confidentiality, provided dummy values for kid, iss, sub

2

Hi @kesava,

Can you check and make sure you’ve done this portion of the process for your Service App? Implement OAuth for Okta with a service app | Okta Developer

In particular, please double check that the public key you generated has been added into the Service App. You can also generate it in the admin console using the process below the above one. Let me know if that helps!