Re: [Suit] suit-firmware-encryption-00

[Hannes Tschofenig <[e-mail]>]

Hi Michael,

   > > SUIT is using signature for the authentication and integrity of the
   > > firmware.  If the signature remains in place, a party in the middle of
   > > the distribution cannot insert any malware.

> The encryption of the firmware keeps third parties from auditing the software updates to determine if malware has been inserted at the "factory"
> Both white and black hats are currently using binary diff systems to look at patches.  Black hats use this to develop exploits in the gap between 9am EST and 9am PST!
> I am suggesting that this is a "Security Consideration"

A description of the software is contained in the COSWID and, as Brendan suggests, in a MUD file that is included with the manifest (see https://datatracker.ietf.org/doc/html/draft-moran-suit-mud).
Furthermore, I can imagine that those authorized to audit the software can do so either based on the source code or by giving them access to the binary.

Ciao
Hannes

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