[UA-discuss] RFC 8398 "Internationalized Email Addresses in X.509 Certificates" implementation

Michael Casadevall michael at casadevall.pro
Thu Jul 4 03:42:05 UTC 2019

Solid work! Getting x.509 certificates works for EAI is a huge step forward.

I looked at the patch and it seems relatively clean although I haven't
compiled it locally yet. Is there a timeframe for implementing this in
Mozilla's NSS so Thunderbird can take advantage of S/MIME certificates
for EAIs?


On 7/3/19 1:54 PM, Dmitry Belyavsky wrote:
> Hi all,
> Coordination Center for TLD .RU/.РФ is happy to announce a draft
> implementation of RFC 8398 "Internationalized Email Addresses in X.509
> Certificates" for OpenSSL: https://cctld.ru/en/news/news_detail.php?ID=21240
> The implementation and some test examples are available for download
> here: https://cctld.ru/files/books/EAI.pdf (in Russian)
> Direct links:
> Draft implementation - https://cctld.ru/files/eai/rfc8398.diff
> Test examples - https://cctld.ru/files/eai/root.tar.gz
> Instructions - https://cctld.ru/files/eai/README.8398
> The implementation covers the following cases:
> - Displaying the EAI in X.509 certificates
> - Verifying NameConstraints in X.509 certificate chains of trust
> - Matching EAIs in X.509 with provided EAI.
> Feel free to test the patch and send feedback to pr at cctld.ru
> <mailto:pr at cctld.ru> or to me directly.
> -- 
> SY, Dmitry Belyavsky
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