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A comment on Software control USB power on some USB hubs. Parent comment

Re:Software control USB power on some USB hubs by teakie on Thursday September 14, 2023 @04:26AM (#37506350)
yes that negotion is a specific protocoll of USB-C and was used to unlock fde encryption through the USB-C port connected secure enclave, that was happy to decrypt fed as if you had entered the password. the next generation had magsafe again :)
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Re:Software control USB power on some USB hubs by mjg59 on Thursday September 14, 2023 @01:04PM (#37511637)
If you're talking about the T2 vulnerability - no, PD negotiation is not sufficient, you need arbitrary data communication.
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Re:Software control USB power on some USB hubs by teakie on Friday September 15, 2023 @04:49PM (#37528944)
mind sharing a reference? didn't say it's a pd vuln btw edit: ah, I see – did say exactly that.
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Re:Software control USB power on some USB hubs by teakie on Saturday September 16, 2023 @04:53AM (#37533133)
sorry, but NO I didn't meant to say that. but part of the problem and part of the solution was usbc/nomore usbc.

Do you happen to have that github link with the poc link to youtube?

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Re:Software control USB power on some USB hubs by nikau on Thursday September 14, 2023 @07:30PM (#37516197)
It's not just pd, it does all the wacky Samsung and other negotiation types too.
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