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colmmacc's profile
Colm MacCárthaigh
Colm MacCárthaigh
Colm MacCárthaigh
@colmmacc

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Colm MacCárthaigh

@colmmacc

AWS, Apache, Crypto, Irish Music, Haiku, Photography

Seattle
notesfromthesound.com
Joined April 2008

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    1. Tony “Abolish ICE” Arcieri  🦀‏ @bascule 7 Apr 2019
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      Replying to @bascule @RichSalz and

      I want a schema description of X.509 I can use to programatically generate equivalent parsers and serializers in all popular programming languages

      2 replies 0 retweets 1 like
    2. Peter Bowen‏ @pzb 7 Apr 2019
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      Replying to @bascule @RichSalz and

      ASN.1 itself is a schema language

      1 reply 0 retweets 2 likes
    3. Tony “Abolish ICE” Arcieri  🦀‏ @bascule 7 Apr 2019
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      Replying to @pzb @RichSalz and

      ASN.1 isn’t a schema language. ASN.1 retroactively bolted on a schema language I can’t use to generate code in all popular languages.

      2 replies 0 retweets 0 likes
    4. Rich Salz‏ @RichSalz 7 Apr 2019
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      Replying to @bascule @pzb and

      Why do you say that? It's just a simple matter of coding to implement

      1 reply 0 retweets 0 likes
    5. Tony “Abolish ICE” Arcieri  🦀‏ @bascule 7 Apr 2019
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      Replying to @RichSalz @pzb and

      https://seclists.org/fulldisclosure/2018/Jan/12 …

      2 replies 0 retweets 0 likes
    6. Rich Salz‏ @RichSalz 7 Apr 2019
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      Replying to @bascule @pzb and

      The point being?

      1 reply 0 retweets 0 likes
    7. Tony “Abolish ICE” Arcieri  🦀‏ @bascule 7 Apr 2019
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      Replying to @RichSalz @pzb and

      RCERCERCERCERCE RCERCERCERCERCE RCERCERCERCERCE RCERCERCERCERCE RCERCERCERCERCE RCERCERCERCERCE RCERCERCERCERCE RCERCERCERCERCE

      1 reply 0 retweets 1 like
    8. Tony “Abolish ICE” Arcieri  🦀‏ @bascule 7 Apr 2019
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      Replying to @bascule @RichSalz and

      All of the critical infrastructure computing is insecure because people keep fucking up X.509 parsers. That is the problem. But the real problem is X.509 (and vicariously ASN.1) advocates can’t even admit there is a problem.pic.twitter.com/tWytIL1gz5

      2 replies 4 retweets 9 likes
    9. Rich Salz‏ @RichSalz 7 Apr 2019
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      Replying to @bascule @pzb and

      I don't disagree

      1 reply 0 retweets 2 likes
    10. Tony “Abolish ICE” Arcieri  🦀‏ @bascule 7 Apr 2019
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      Replying to @RichSalz @pzb and

      Seems like you can’t admit there’s a problem. And really, that’s the core problem. Nobody wants to talk about it, and meanwhile the world burns with unpatchable bootloader, firmware, and baseband vulnerabilities.

      2 replies 0 retweets 0 likes
      Colm MacCárthaigh‏ @colmmacc 7 Apr 2019
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      Replying to @bascule @RichSalz and

      I'm more worried about the world not admitting that there's a solution! Would CA/B forum be the place to propose replacing ASN.1 in certs? has It ever come up? has it basically no chance due to inertia?

      6:55 PM - 7 Apr 2019
      • 1 Like
      • Nimrod Aviram
      3 replies 0 retweets 1 like
        1. New conversation
        2. Colm MacCárthaigh‏ @colmmacc 7 Apr 2019
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          Replying to @sleevi_ @bascule and

          Personally I’d love protobufs for this!

          1 reply 0 retweets 0 likes
        3. End of conversation
        1. New conversation
        2. Brian Smith‏ @BRIAN_____ 7 Apr 2019
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          Replying to @colmmacc @bascule and

          I'd love to see simply a blog post that describes the problem and the proposed solution, so that we can first evaluate whether the cure is worse than the disease. Nobody is using ASN.1 for anything new, and it seems unlikely that a new format for existing things is a net win.

          2 replies 0 retweets 2 likes
        3. Brian Smith‏ @BRIAN_____ 7 Apr 2019
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          Replying to @BRIAN_____ @colmmacc and

          So far, the best write-up of real problems with parsing X.509 I've seen is https://arxiv.org/abs/1812.04959 , and the problems are solvable with a simple profile of X.509 following their recommendations to make X.509 context-free. E.g., require OID-tagged structures appear in sorted order.

          1 reply 0 retweets 6 likes
        4. End of conversation

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