Working on a new USB armory SCC driver so that we can have easy to use AES encryption with built-in unique 256-bit secret key. More soon.
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Replying to @AndreaBarisani
hey andrea, i ported the freescale SCC driver for the armory on a 3.18 kernel. could upload it to github for you later?
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Replying to @blubdidub
I've done that too actually but for more recent ones, I am working on using it effectively right now.
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Replying to @AndreaBarisani
ah ok, so it’s about the user space API component? up to now i’ve only used it (successfully) to wrap keys in kernel space.
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Replying to @blubdidub
yes, I am trying to use it for AES encryption/decryption with the internal key (not user provided ones). Did you manage that?
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Replying to @AndreaBarisani
yeah, that worked for me. but I didn’t bother with secure boot so i guess it used the internal test key.
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Replying to @blubdidub @AndreaBarisani
but it should work with the real unique key as soon as the secure boot is configured.
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Replying to @blubdidub
by all means I would then be interested to compare your code with mine for the best integration, could you send it or publish? :)
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Replying to @AndreaBarisani
I also added some sample code from my research PoC (not yet published). Probably doesn’t compile but shows “how-to-SCC” :D
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thx! I will dig in tomorrow, hopefully I will have an official integration in our buildroot repository next week ;)
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