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  3. Well isn't learning how to run your own CA a lot of fun?

Well isn't learning how to run your own CA a lot of fun?

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  • neil@mastodon.neilzone.co.ukN neil@mastodon.neilzone.co.uk

    Well isn't learning how to run your own CA a lot of fun?

    And by "fun", I mean "debugging".

    And by "a lot", I mean "a looooooooooot".

    I am making progress, today around SAN and Firefox, but this is a bit like plodding around in treacle.

    (I'm not looking for advice, although sympathy is welcome :))

    bencurthoys@mastodon.socialB This user is from outside of this forum
    bencurthoys@mastodon.socialB This user is from outside of this forum
    bencurthoys@mastodon.social
    wrote last edited by
    #18

    @neil The best part about debugging anything to do with certificates or encryption or security is that any useful debugging information is a security leak... so you don't get any. Either it works, or it doesn't work and it refuses to tell you why.

    Sometimes it's mathematically impossible for it to tell you why. Once I lost more than a day working out why, when I hashed a string, I got a different hash value than was expected, when my hash function returned the same expected value on test data.

    bencurthoys@mastodon.socialB 1 Reply Last reply
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    • bencurthoys@mastodon.socialB bencurthoys@mastodon.social

      @neil The best part about debugging anything to do with certificates or encryption or security is that any useful debugging information is a security leak... so you don't get any. Either it works, or it doesn't work and it refuses to tell you why.

      Sometimes it's mathematically impossible for it to tell you why. Once I lost more than a day working out why, when I hashed a string, I got a different hash value than was expected, when my hash function returned the same expected value on test data.

      bencurthoys@mastodon.socialB This user is from outside of this forum
      bencurthoys@mastodon.socialB This user is from outside of this forum
      bencurthoys@mastodon.social
      wrote last edited by
      #19

      @neil The answer, it turns out, is that the string was being built from a GUID, and their platform serialised the GUID with lowercase hex and mine with uppercase hex, and your eye doesn't notice the case of the letters when looking at hex values, so I couldn't see that they were different.

      bencurthoys@mastodon.socialB 1 Reply Last reply
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      • bencurthoys@mastodon.socialB bencurthoys@mastodon.social

        @neil The answer, it turns out, is that the string was being built from a GUID, and their platform serialised the GUID with lowercase hex and mine with uppercase hex, and your eye doesn't notice the case of the letters when looking at hex values, so I couldn't see that they were different.

        bencurthoys@mastodon.socialB This user is from outside of this forum
        bencurthoys@mastodon.socialB This user is from outside of this forum
        bencurthoys@mastodon.social
        wrote last edited by
        #20

        @neil So. Sympathy.

        1 Reply Last reply
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        • neil@mastodon.neilzone.co.ukN neil@mastodon.neilzone.co.uk

          Well isn't learning how to run your own CA a lot of fun?

          And by "fun", I mean "debugging".

          And by "a lot", I mean "a looooooooooot".

          I am making progress, today around SAN and Firefox, but this is a bit like plodding around in treacle.

          (I'm not looking for advice, although sympathy is welcome :))

          neil@mastodon.neilzone.co.ukN This user is from outside of this forum
          neil@mastodon.neilzone.co.ukN This user is from outside of this forum
          neil@mastodon.neilzone.co.uk
          wrote last edited by
          #21

          You can expect a riveting blogpost in due course.

          And by "riveting", I mean "utterly tedious and unnecessary unless you, too, have the misfortune to want to run your own certificate authority".

          gary_alderson@infosec.exchangeG hannes@social.coopH brunogirin@mastodon.me.ukB 3 Replies Last reply
          0
          • neil@mastodon.neilzone.co.ukN neil@mastodon.neilzone.co.uk

            You can expect a riveting blogpost in due course.

            And by "riveting", I mean "utterly tedious and unnecessary unless you, too, have the misfortune to want to run your own certificate authority".

            gary_alderson@infosec.exchangeG This user is from outside of this forum
            gary_alderson@infosec.exchangeG This user is from outside of this forum
            gary_alderson@infosec.exchange
            wrote last edited by
            #22

            @neil i have it pinned in my calendar

            1 Reply Last reply
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            • neil@mastodon.neilzone.co.ukN neil@mastodon.neilzone.co.uk

              Well isn't learning how to run your own CA a lot of fun?

              And by "fun", I mean "debugging".

              And by "a lot", I mean "a looooooooooot".

              I am making progress, today around SAN and Firefox, but this is a bit like plodding around in treacle.

              (I'm not looking for advice, although sympathy is welcome :))

              kate@social.treehouse.systemsK This user is from outside of this forum
              kate@social.treehouse.systemsK This user is from outside of this forum
              kate@social.treehouse.systems
              wrote last edited by
              #23

              @neil been there, done that. there are more fun things in life.

              1 Reply Last reply
              0
              • neil@mastodon.neilzone.co.ukN neil@mastodon.neilzone.co.uk

                You can expect a riveting blogpost in due course.

                And by "riveting", I mean "utterly tedious and unnecessary unless you, too, have the misfortune to want to run your own certificate authority".

                hannes@social.coopH This user is from outside of this forum
                hannes@social.coopH This user is from outside of this forum
                hannes@social.coop
                wrote last edited by
                #24

                @neil are you using openssl command line or some scripts/tooling on top of it?

                neil@mastodon.neilzone.co.ukN 1 Reply Last reply
                0
                • hannes@social.coopH hannes@social.coop

                  @neil are you using openssl command line or some scripts/tooling on top of it?

                  neil@mastodon.neilzone.co.ukN This user is from outside of this forum
                  neil@mastodon.neilzone.co.ukN This user is from outside of this forum
                  neil@mastodon.neilzone.co.uk
                  wrote last edited by
                  #25

                  @hannes openssl

                  1 Reply Last reply
                  0
                  • neil@mastodon.neilzone.co.ukN neil@mastodon.neilzone.co.uk

                    You can expect a riveting blogpost in due course.

                    And by "riveting", I mean "utterly tedious and unnecessary unless you, too, have the misfortune to want to run your own certificate authority".

                    brunogirin@mastodon.me.ukB This user is from outside of this forum
                    brunogirin@mastodon.me.ukB This user is from outside of this forum
                    brunogirin@mastodon.me.uk
                    wrote last edited by
                    #26

                    @neil I am so looking forward to it!

                    1 Reply Last reply
                    0
                    • neil@mastodon.neilzone.co.ukN neil@mastodon.neilzone.co.uk

                      Well isn't learning how to run your own CA a lot of fun?

                      And by "fun", I mean "debugging".

                      And by "a lot", I mean "a looooooooooot".

                      I am making progress, today around SAN and Firefox, but this is a bit like plodding around in treacle.

                      (I'm not looking for advice, although sympathy is welcome :))

                      matus_chochlik@mastodon.onlineM This user is from outside of this forum
                      matus_chochlik@mastodon.onlineM This user is from outside of this forum
                      matus_chochlik@mastodon.online
                      wrote last edited by
                      #27

                      @neil 10 years ago I worked on a project implementing PKI including CA, time-stamping, document signers, browser plugins and an installer of all the SW for universities in Slovakia.

                      You have my sympathies:P

                      1 Reply Last reply
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