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4.1.2. Validation

The SCP ROM firmware implements an Adler-32 checksum algorithm that is used to validate the RAM firmware image once it has been transferred. The checksum is only used to ensure that the image has been received without any corruption by hardware or software and must not be considered a form of authentication. If the platform requires authentication, the AP secure firmware must authenticate the SCP RAM firmware image before sending it to the SCP.

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