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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 7 May 2017
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      (1/x) Spain's largest online card processor: * XML inside XML * Signing XML as text: cannot use a real XML parser or the signature breaks

      4 replies 24 retweets 44 likes
    2. Hector Martin‏ @marcan42 7 May 2017
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      Replying to @marcan42

      (2/x) * Using 3DES for no reason * To calculate the HMAC key you need data from *inside* the payload * Their XML namespace isn't a real URL

      2 replies 4 retweets 6 likes
    3. Hector Martin‏ @marcan42 7 May 2017
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      Replying to @marcan42

      (3/x) * Signing key is pre-diversified in a dumb way for no reason, reducing entropy * CBC mode with all-0 IV

      1 reply 4 retweets 7 likes
    4. Hector Martin‏ @marcan42 7 May 2017
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      Replying to @marcan42

      (4/x) * Their reference manual is useless (no mention of modes, IVs, etc): only way to interoperate is to reverse engineer their sample API.

      4 replies 5 retweets 10 likes
    5. Hector Martin‏ @marcan42 7 May 2017
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      Replying to @marcan42

      (5/x) * They have multiple callback mechanisms, but inexplicably the only usable one (positive synchronous confirmation) requires SOAP.

      1 reply 1 retweet 4 likes
      Hector Martin‏ @marcan42 7 May 2017
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      (6/x) Seriously, this code of theirs. Go on, try to understand it. Input:<Message><Request>...</Request><Signature>...</Signature></Message>pic.twitter.com/ZPM83nGVSe

      4:59 AM - 7 May 2017
      • 5 Retweets
      • 10 Likes
      • Marcela Pallero💚🧡 (en casa)✊🏽✊🏾✊🏿 Merijn 👨‍💻🏠 trap15 • A.Marshall 💖 FlanMaztæ666 💖 Jussi Hagman David da Silva Contín i love you sebastian Daniel
      3 replies 5 retweets 10 likes
        1. Patriq‏ @_Patriq_ 7 May 2017
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          Replying to @marcan42

          *vomits*

          0 replies 0 retweets 0 likes
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        1. HTCPCP/1.0  ☕️‏ @outadoc 7 May 2017
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          Replying to @marcan42

          Thats… that’s bold.

          0 replies 0 retweets 0 likes
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        3. New conversation
        1. Hector Martin‏ @marcan42 7 May 2017
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          Replying to @marcan42

          (7/x) And you know, they *could* use a real XML parser for this part, but why bother.pic.twitter.com/A1ZWzea6tv

          9 replies 5 retweets 17 likes
        2. Gabriel Montclaire‏ @Room_52 7 May 2017
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          Replying to @marcan42

          I feel that this XKCD comic is appropriate at this point:pic.twitter.com/xX4aw5UDBh

          1 reply 6 retweets 9 likes
        3. Show replies

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