Azure AD: Validate access_token - Microsoft Q&A (2024)

FAQs

How to validate Azure AD access token? ›

The way you validate the authenticity of the JWT token's data is by using Entra ID's public key to verify the signature. If it works, you know the contents were signed with the private key. If not, you can't be sure of it so you should treat the JWT token as an invalid token.

Select Microsoft Azure Active Directory and then select Login to Azure AD. You are redirected to Microsoft Account sign-in page. Enter admin credentials with the appropriate permissions and sign in. Review the permissions, then click Accept.

The accessToken issued by AzureAD must be verified in JAVA. jwt, https://login.microsoftonline.com/" +tenantId + "/discovery/keys? appid=" + If you decode the clientId, the public key confirmed here is successfully received. When verified with the received public key, it returns false.

You can obtain public key by calling the public Azure AD OpenID configuration endpoint: https://login.microsoftonline.com/{tenant_id}/discovery/keys?appid={client_id} and verify against the private key generated by Azure AD token. For validation, developers can decode JWTs using jwt.ms and verify against "kid" claim.

In order to get the JWT token, we need to first hit the azure /token by providing the client credentials. Go back to Azure Portal and click on the application name that we registered in the Azure AD and in the overview screen, click “Endpoints“.

What authentication method does Azure AD use? ›

Azure Active Directory (AD) provides a range of authentication methods to help you manage access to company devices, applications, and data across your organization. This ranges from multi-factor authentication methods like Microsoft Authenticator, all the way to passwordless methods like Windows Hello.

You can use Windows Azure Authentication to authenticate Office 365 users from your organization, corporate accounts synced from your on-premise Active Directory or users created in your own custom Windows Azure Active Directory domain.

Validation Steps

Send a request to https://login.microsoftonline.com/{tenantId}/discovery/keys?appid={applicationId} to receive all public keys unique to your applicationId and tenantId . This action is cached after one successful attempt. Verify all required access token claims: aud , tid , iss , scp , appid , exp .

You can validate your tokens locally by parsing the token, verifying the token signature, and validating the claims that are stored in the token. Parse the tokens. The JSON Web Token (JWT) is a standard way of securely passing information. It consists of three main parts: Header, Payload, and Signature.

You can validate your tokens locally by parsing the token, verifying the token signature, and validating the claims that are stored in the token. Parse the tokens. The JSON Web Token (JWT) is a standard way of securely passing information. It consists of three main parts: Header, Payload, and Signature.