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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 23 Oct 2014
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      Updated version of the evil @FTDIChip code analysis, now that I understand it better. It's actually rather clever.pic.twitter.com/jzvfDNZsq6

      10 replies 160 retweets 129 likes
    2. Papangelo‏ @PapaRedFox 23 Oct 2014
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      @philpem @FTDIChip @marcan42 I would still say that any checksum that can be corrected by changing a single byte isn't fit for purpose.

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 23 Oct 2014
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      Replying to @PapaRedFox

      @PapaRedFox @philpem @FTDIChip Any hash is by definition vulnerable to a preimage attack of complexity O(2^bits). bits=16 here...

      10:24 AM - 23 Oct 2014
      1 reply 0 retweets 0 likes
        1. Hector Martin‏ @marcan42 23 Oct 2014
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          Replying to @marcan42

          @PapaRedFox @philpem @FTDIChip Of course, this is a dumb XOR-and-rotate checksum, so the actual complexity here is O(1). Meh.

          0 replies 0 retweets 0 likes
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