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Checking PINS #5

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richardschneider opened this issue May 21, 2018 · 0 comments
Open

Checking PINS #5

richardschneider opened this issue May 21, 2018 · 0 comments

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@richardschneider
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DNS over TLS allows a PIN (and a backup) to be specified for the server. The PIN is the hash of the certificate's SPKI. This check is not implemented because the current open DOT servers do NOT publish nor recommend use of SPKI pins with their servers.

Implementation is a bit hard because C# provides no mechanism to retrieve the SPKI of an X.509 certificate. Will need Bouncy Castle.
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@richardschneider