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danluu's profile
Dan Luu
Dan Luu
Dan Luu
@danluu

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Dan Luu

@danluu

https://patreon.com/danluu 

danluu.com
Joined December 2008

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    1. Solar Designer‏ @solardiz 4 Feb 2015
      • Report Tweet
      Replying to @4Dgifts

      @4Dgifts @TheKanter @cynicalsecurity @danluu @byterazor @ortegaalfredo I have yet to hear of a CPU backdoor discovered in the wild

      2 replies 1 retweet 1 like
    2. This Tweet is unavailable.
    3. Arrigo Triulzi‏ @cynicalsecurity 4 Feb 2015
      • Report Tweet
      Replying to @4Dgifts

      @4Dgifts @solardiz @TheKanter @danluu @byterazor @ortegaalfredo I think we haven't seen them because, quite frankly, they are not needed…

      2 replies 1 retweet 2 likes
    4. Alfredo Ortega‏ @ortegaalfredo 4 Feb 2015
      • Report Tweet
      Replying to @cynicalsecurity

      @cynicalsecurity @4Dgifts @solardiz @TheKanter @danluu @byterazor exactly. Hard backdoors are a bad idea, too easy to turn them against you

      2 replies 0 retweets 0 likes
    5. This Tweet is unavailable.
    6. Solar Designer‏ @solardiz 4 Feb 2015
      • Report Tweet
      Replying to @4Dgifts

      @4Dgifts @ortegaalfredo @cynicalsecurity @TheKanter @danluu @byterazor Would a tiny bit of non-volatile memory be easily seen on a die shot?

      2 replies 0 retweets 1 like
    7. Dan Luu‏ @danluu 4 Feb 2015
      • Report Tweet
      Replying to @solardiz

      @solardiz @4Dgifts @ortegaalfredo @cynicalsecurity @TheKanter @byterazor Very hard to sneak in, since it's a different manuf. process.

      1 reply 1 retweet 0 likes
    8. Dan Luu‏ @danluu 4 Feb 2015
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      Replying to @danluu

      @solardiz @4Dgifts @ortegaalfredo @cynicalsecurity @TheKanter @byterazor However, it's common to build mini-logic analyzers in for si debug

      2 replies 1 retweet 0 likes
    9. David Kanter‏ @TheKanter 4 Feb 2015
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      Replying to @danluu

      @danluu @solardiz @4Dgifts @ortegaalfredo @cynicalsecurity @byterazor intel has a full-blown logic analyzer for the on-chip fabric

      3 replies 2 retweets 1 like
    10. Solar Designer‏ @solardiz 4 Feb 2015
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      Replying to @TheKanter

      @TheKanter @danluu @4Dgifts @ortegaalfredo @cynicalsecurity @byterazor Any way we can access such in-CPU logic analyzers from our software?

      1 reply 1 retweet 0 likes
      Dan Luu‏ @danluu 4 Feb 2015
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      Replying to @solardiz

      @solardiz @TheKanter @4Dgifts @ortegaalfredo @cynicalsecurity @byterazor In all cases that I know of, you'd have to reverse engineer access

      11:47 AM - 4 Feb 2015
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        1. Dan Luu‏ @danluu 4 Feb 2015
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          Replying to @danluu

          @solardiz @TheKanter @4Dgifts @ortegaalfredo @cynicalsecurity @byterazor Not sure how, since unlike K8 case, you won't have ptrs in binaries

          1 reply 1 retweet 0 likes
        2. Dan Luu‏ @danluu 4 Feb 2015
          • Report Tweet
          Replying to @danluu

          @solardiz @TheKanter @4Dgifts @ortegaalfredo @cynicalsecurity @byterazor unless you dig through trash HDs from post-si debug lab or somethin

          1 reply 0 retweets 0 likes
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