How to use postman to perform a Client Credentials Grant flow with a certificate

This post will demonstrate a couple of things: How to create a signed jwt token (aka Client Assertion) using Powershell. How to use this generated Client Assertion in Postman to get an Access Token Using Client Credentials Grant Flow. To get an Access Token using Client-Credentials Flow, we can either use a Secret or a Certificate. This post will use a self-signed certificate to create the client assertion using both…

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MSAL.Net in PowerShell – Use .pfx file for Client Credentials Flow

This post will show you how to authenticate for the client credentials flow in PowerShell with MSAL.Net using the .pfx file for the certificate authentication instead of loading the certificate from the certificate store. This post is in part based on this: Using PowerShell to Configure a signing certificate for a SAML-based SSO enterprise application Also, special thanks to my team members Bac Hoang and Will Fiddes for assisting with…

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