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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 3 Jul 2018
      • Report Tweet
      • Report NetzDG Violation

      LPC bus tap. I feel like I'm modding PS2s again...pic.twitter.com/cXqzRa6SAN

      14 replies 46 retweets 319 likes
      Show this thread
    2. Hector Martin‏ @marcan42 3 Jul 2018
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      TIL LPC is mixed-endian. Intel, what were you smoking?

      3 replies 3 retweets 35 likes
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    3. Hector Martin‏ @marcan42 3 Jul 2018
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      Looks like it works. I see a bunch of Super I/O accesses, then COM1, Some port 90h pokes but nobody's listening (POST codes?), PS/2 KBC, and more pokes to 90h and 99h.pic.twitter.com/MEA8cTpxV9

      1 reply 4 retweets 12 likes
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    4. Hector Martin‏ @marcan42 3 Jul 2018
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      Photo of the set-up.pic.twitter.com/Np9GmvWOFt

      6 replies 8 retweets 64 likes
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    5. Hector Martin‏ @marcan42 3 Jul 2018
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      Why am I doing this? TPM sniffer/MitM PoC. Because people who think that transparent-mode (TPM-only) BitLocker is secure are funny.

      12 replies 13 retweets 58 likes
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    6. Billy O'Neal‏ @MalwareMinigun 3 Jul 2018
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      Replying to @marcan42

      What about the recent TPMs that are on the CPU die? (AMD fTPM / Intel PTT)

      1 reply 0 retweets 1 like
      Hector Martin‏ @marcan42 3 Jul 2018
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      Replying to @MalwareMinigun

      Those are broken in a bunch of other ways. AMD PSP/fTPM is already totally hijackable if you just write your BIOS flash chip due to a bunch of fail (that you can't fix in existing systems AFAIK). Much worse than a dedicated TPM in that respect, you can steal all the secrets.

      2:11 PM - 3 Jul 2018
      • 1 Like
      • Billy O'Neal
      2 replies 0 retweets 1 like
        1. Billy O'Neal‏ @MalwareMinigun 3 Jul 2018
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          Replying to @marcan42

          :(

          0 replies 0 retweets 0 likes
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        1. ElJeffe‏ @eljeffeg 20 Mar 2019
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          Replying to @marcan42 @MalwareMinigun

          Looking for info on hijacking Intel PPT & AMD fTPM. Any suggestions for good reading?

          0 replies 0 retweets 0 likes
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