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

Ray Held [MSFT]

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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What’s the security implication of changing the default client type from confidential to public in Azure AD?

Bac Hoang [MSFT]

From time to time, I get asked this question by a few different customers especially when they encounter the error “AADSTS7000218: The request body must contain the following parameter: ‘client_assertion’ or ‘client_secret’” when authenticating to Azure AD. The error is related to the following Default client type setting in the Authentication blade of a registered application: By default the setting is set to No (confidential client). Changing to ‘Yes’ converts…

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