licenses

Licensing flow

Note

All tokens here are www.microsoft.com

flowchart TD
    Dev["Device Token"] --> Lic["licensing.mp.microsoft.com"]
    Usr["User Token"] --> Lic
    Ct["ContentId"] --> Lic
    Lic --> SpL["SPLicenseBlock"]
    SpL --> EncK["Packed Content Keys"]

    DecLi["DeviceLicense"]
    DK["Derived Device Key"]
    DecLi-->DK

    K["Content Keys"]
    EncK-->K
    DK-->K

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DeviceLicense here decrypts to an EncryptedDeviceKey block, which uses the same AES/key-schedule encoding as ClepSignState/ClepHmacState - see CLEP secrets.