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When will TLS 1.3 be available in SCHANNEL?

Anonymous
2019-11-11T11:36:37+00:00

I have not been able to find any official information about the implementation of TLS 1.3 security protocol in Windows 10.

In particular the SCHANNEL api which implements cryptography on streams that for example, a web server would use, like IIS.

Information on this is important as we must implement an SCHANNEL server which supports TLS 1.3 well before the previous versions are considered deprecated on the web.  SSLLABS is adding a warning to our security test which states:

 This server supports TLS 1.0 and TLS 1.1. Grade will be capped to B from January 2020. 

So, in January, which is 2 months away, only TLS 1.2 will still be considered grade A security, and of course it will expire soon as well, as TLS 1.3 is a major improvement to 1.2.

We need lead time to implement and test TLS 1.3 well before the expiration of older protocols.

And yet, as of this time (11/11/2019) there has been no information on the Windows timeframe for support of TLS 1.3.

 Please give us more information on the topic of TLS 1.3 security protocol.

Windows for home | Windows 10 | Internet and connectivity

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  1. Anonymous
    2019-11-13T06:50:33+00:00

    Hi,

    Thank you for writing to Microsoft Community Forums.

    We understand your concern as you want to know, when TLS 1.3 will be available in SCHANNEL.

    Let me point you in the right direction, where you would get the appropriate help for this issue. I would suggest you to post your query in TechNet forums, where we have experts and support professionals who are well equipped with the knowledge on TLS to assist you with the appropriate troubleshooting steps.

    Please refer this article: Transport Layer Security (TLS) best practices with the .NET Framework

    Regards,

    Aditya Roy

    Microsoft Community – Moderator

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