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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 24 Feb 2017
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      So many people are getting the SHA1 story wrong. With the collision that Google released, *anyone* can create colliding PDFs for *free*.

      13 replies 353 retweets 396 likes
    2.  👼 Ąż 杏‏ @angealbertini 24 Feb 2017
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      Replying to @marcan42

       👼 Ąż 杏 Retweeted Erling Ellingsen

      https://twitter.com/steike/status/834826657768865793 …

       👼 Ąż 杏 added,

      Erling Ellingsen @steike
      Make your own colliding PDFs: https://alf.nu/SHA1 
      1 reply 10 retweets 8 likes
    3.  👼 Ąż 杏‏ @angealbertini 24 Feb 2017
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      Replying to @angealbertini @marcan42

      I was expecting a write-up from you TBH ;)

      1 reply 0 retweets 0 likes
    4. Hector Martin‏ @marcan42 24 Feb 2017
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      Replying to @angealbertini

      ENOTIME, sadly. Spent last week on lasers, had to get real work done this week ;)

      1 reply 0 retweets 5 likes
    5.  👼 Ąż 杏‏ @angealbertini 24 Feb 2017
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      Replying to @marcan42

      it's ok - you can make the PDF have meaningful RAW content when plugged to a laser, don't be shy ;)

      1 reply 0 retweets 0 likes
    6. Hector Martin‏ @marcan42 24 Feb 2017
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      Replying to @angealbertini

      No fun if I can't make said content differ between the two files! Sadly the ILDA header disagrees with PDF's :P

      1 reply 0 retweets 1 like
    7.  👼 Ąż 杏‏ @angealbertini 24 Feb 2017
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      Replying to @marcan42

      mmm, tempting... PDF -> SVG -> ILDA ...

      1 reply 0 retweets 2 likes
    8. Hector Martin‏ @marcan42 24 Feb 2017
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      Replying to @angealbertini

      if you want a non-challenge, making a PDF look totally different after SVGing and svg2ilda should be trivial :-)

      2 replies 0 retweets 1 like
    9. Hector Martin‏ @marcan42 24 Feb 2017
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      Replying to @marcan42 @angealbertini

      svg2ilda is, shall we say, rather primitive. I do need to rewrite it based on my slightly improved SVG module from reLase...

      1 reply 0 retweets 0 likes
    10.  👼 Ąż 杏‏ @angealbertini 24 Feb 2017
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      Replying to @marcan42

      so we can make a PDF/ILDA polyglot: the PDF explains the PDF format, the ILDA payload explains the ILDA format ;)

      1 reply 0 retweets 3 likes
      Hector Martin‏ @marcan42 24 Feb 2017
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      Replying to @angealbertini

      I like that idea, because there's no way you can see explain *PDF* in a laser frame that renders at more than 1FPH :D

      3:54 AM - 24 Feb 2017
      • 2 Likes
      • Real AI Jacob Soo
      1 reply 0 retweets 2 likes
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        1.  👼 Ąż 杏‏ @angealbertini 24 Feb 2017
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          Replying to @marcan42

          me need more explanations...

          1 reply 0 retweets 0 likes
        2. Hector Martin‏ @marcan42 24 Feb 2017
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          Replying to @angealbertini

          I meant that ILDA is a simple format, but if you tried to explain PDF by laser you'd wait for hours while the frame scans :)

          1 reply 0 retweets 0 likes
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