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A comment on How is the free firmware for the Raspberry progressing?. Parent comment

Re:How is the free firmware for the Raspberry progressing? by bootloop on Wednesday April 13, 2022 @03:23AM (#31012030)
> Marcan42 dumped the keys from the VideoCore blob

Certainly only the public keys are part of the blob or not? Only the accessories would need the private key embedded to answer the challenge.

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Re:How is the free firmware for the Raspberry progressing? by bri3d on Wednesday April 13, 2022 @08:14AM (#31013720)
It’s HMAC, not PKI, so the key is symmetric. Why it was implemented this way in particular I’m not sure.

https://gist.github.com/marcan/6dde73a9a0c917cd4fc9784a0a73e...

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