MSAL, short for Microsoft Authentication Library, is a framework that helps applications securely identify users and request access to protected resources. It operates using industry-standard protocols such as OAuth 2.0 and OpenID Connect, connecting applications to Microsoft Entra ID and Microsoft accounts. MSAL manages the complete authentication lifecycle, including sign-in, token generation, secure storage, refresh, and single sign-on. It supports multiple application types such as web, mobile, desktop, and background services. By simplifying complex identity processes, MSAL allows developers to focus on application logic while ensuring strong security, scalability, and compliance with modern identity management and cloud security standards across enterprise environments.
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