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JSON Web Token RS256 Signature Validation
  1. How-to
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  1. Kirby Cemanes
  2. PowerBuilder
  3. Wednesday, 11 December 2024 09:00 AM UTC

Hi, 

I'm trying to do some Microsoft Azure AD Authentication integration and need some help verifying the signature of the ID Token provided during the authentication exchange.

Looking at the docs, the CoderObject's AsymmetricVerifySign seems to be a good candidate to use. Has anybody tried doing this OIDC/OAuth2 JWT signature verification all in PowerBuilder without using any external libraries?

Any pointers would be appreciated. Thanks.

I can get the n, e, and x5c values from Azure's JWKS url but recreating the Pub Key and using that to verify the signature is proving to be challenging so far. 

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