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BRIAN_____'s profile
Brian Smith
Brian Smith
Brian Smith
@BRIAN_____

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Brian Smith

@BRIAN_____

Code farmer. Security, crypto, performance, networking, usability. Rust, C++, C, Haskell, DSLs, etc. *ring*, webpki, crypto-bench, mozilla::pkix.

Honolulu & San Francisco
briansmith.org
Joined April 2008

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    1. Armon Dadgar‏ @armon 6 Oct 2017
      Replying to @rmhrisk @eabalea @HashiCorp

      Maybe ML is better suited, but I think there is a misunderstanding. Multiple certs for same CN are expected. CN being used to identify role.

      1 reply 0 retweets 0 likes
    2. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
      Replying to @armon @eabalea @HashiCorp

      CN stands for common name; its not for group name; OU Is group; CN is non-typed value & should not be used anymore for structured names.

      1 reply 0 retweets 0 likes
    3. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
      Replying to @rmhrisk @armon and

      SAN is types, email, DNS, proprietary, etc belong there.

      2 replies 0 retweets 0 likes
    4. Armon Dadgar‏ @armon 6 Oct 2017
      Replying to @rmhrisk @eabalea @HashiCorp

      It’s about establishing a chain of trust and meeting folks where they are. There are no doubt better ways of doing it however!

      1 reply 0 retweets 0 likes
    5. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
      Replying to @armon @eabalea @HashiCorp

      Trust me, I understand PKI and what your tying to do, I’m just telling you you are doing it wrong.

      2 replies 0 retweets 0 likes
    6. Armon Dadgar‏ @armon 6 Oct 2017
      Replying to @rmhrisk @eabalea @HashiCorp

      We can support multiple bindings but in practice users and customers are not asking for it, and we can’t pragmatically dictate they change.

      1 reply 0 retweets 0 likes
    7. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
      Replying to @armon @eabalea @HashiCorp

      I appreciate your custs have not reviewed this & asked you to fix it but that’s different than saying it is right or they dont want it fixed

      1 reply 0 retweets 0 likes
    8. Armon Dadgar‏ @armon 6 Oct 2017
      Replying to @rmhrisk @eabalea @HashiCorp

      That’s fair, it’s more a reflection that it doesn’t apply in their environment. Eg they can’t leverage it with their PKI setup anyways.

      1 reply 0 retweets 0 likes
    9. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
      Replying to @armon @eabalea @HashiCorp

      In my extensive PKI experience enterprise customers trust many roots and any special semantics your code introduces won’t be understood ...

      1 reply 0 retweets 0 likes
    10. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
      Replying to @rmhrisk @armon and

      By those people who expect it to work like every other product.

      1 reply 0 retweets 0 likes
      Brian Smith‏ @BRIAN_____ 6 Oct 2017
      Replying to @rmhrisk @armon and

      FWIW, I've just written almost exactly the same code as the Hashicorp code and I do think there's a misunderstanding here.

      12:26 PM - 6 Oct 2017
      2 replies 0 retweets 0 likes
        1. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
          Replying to @BRIAN_____ @armon and

          Do tell

          0 replies 0 retweets 0 likes
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        2. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
          Replying to @BRIAN_____ @armon and

          CN is a ambiguous name by which an object is know in some limited scope and conforms to the naming conventions of the associated scope.

          2 replies 0 retweets 0 likes
        3. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
          Replying to @rmhrisk @BRIAN_____ and

          Any principal mapping to values in a subject dn at all needs to be scoped to an issuer.

          2 replies 0 retweets 0 likes
        4. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
          Replying to @rmhrisk @BRIAN_____ and

          In this code I see a chain being built above and the comparison happening out of the scope of the issuer against ambiguous values.

          1 reply 0 retweets 0 likes
        5. Armon Dadgar‏ @armon 6 Oct 2017
          Replying to @rmhrisk @BRIAN_____ and

          I just verified that the conditions are verified within the scope of the issues / trusted chain.https://github.com/hashicorp/vault/blob/master/builtin/credential/cert/path_login.go#L201 …

          1 reply 0 retweets 1 like
        6. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
          Replying to @armon @BRIAN_____ and

          Yes I saw it made sure it was trusted chain, that’s not the concern though.

          1 reply 0 retweets 0 likes
        7. Armon Dadgar‏ @armon 6 Oct 2017
          Replying to @rmhrisk @BRIAN_____ and

          I'm not sure what your concern is. We expect non-unique certs and allow restrictions by issuer. Our mailing list is a better for discussions

          1 reply 0 retweets 0 likes
        8. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
          Replying to @armon @BRIAN_____ and

          As coded any CA they trust is expected to behave in the way this code expects this is likely not true In practice.

          2 replies 0 retweets 0 likes
        9. Ryan Hurst‏Verified account @rmhrisk 6 Oct 2017
          Replying to @rmhrisk @armon and

          Mapping should be scoped to issuer at a minimum. Eg ca1 AND subjectcn=foo

          2 replies 0 retweets 0 likes
        10. 2 more replies

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