How the Xbox 360 knows if your hard-drive is genuine

Re:How the Xbox 360 knows if your hard-drive is genuine by justicz on Wednesday January 25, 2023 @01:01AM (#34514930)

Is the code/assembly for the RSA signature check (`XeKeysVerifyRSASignature`?) available anywhere online?

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Re:How the Xbox 360 knows if your hard-drive is genuine by EatonZ on Wednesday January 25, 2023 @01:16AM (#34515008)

https://i.imgur.com/AFZIA3p.png

It takes in the RSA signature, SHA data hash, and RSA key type. Key types are: XE_PIRS_RSA_KEY = 0x0, XE_LIVEDRM_RSA_KEY = 0x1, XE_DEVICE_RSA_KEY = 0x2 (this is the Sata verification key), XE_XSIGNER2_RSA_KEY = 0x3

It uses key type to load the corresponding public key from memory at static addresses, then verification takes place.

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