Hi John, I think you want https://twistedmatrix.com/documents/20.3.0/api/twisted.internet.ssl.CertificateOptions.html <https://twistedmatrix.com/documents/20.3.0/api/twisted.internet.ssl.CertificateOptions.html>, specifically, you want to pass the "raiseMinimumTo" parameter,
Hope this helps, L. Daniel Burr > On Aug 31, 2020, at 10:47 AM, John Aherne <johnahe...@rocs.co.uk> wrote: > > I'm using twisted 20.3 and python3.6.8 and Windows 10 > > I'm using endpoint_description with a tac file to start up a server. > > But I need to disable tls 1.0 and 1.1. > > I was hoping to find a parameter I could pass in to make the system only > recognise 1.2 and 1.3. But could not find anything that would do that. I > thought sslmethod would be what I wanted but that is limited to : > > Must be one of: "SSLv23_METHOD", "SSLv2_METHOD", "SSLv3_METHOD", > "TLSv1_METHOD". > > If I choose TLSv1_METHOD, TLS1.0 and 1.1 are still enabled and QUALYS > complains and downgrades the rating to B > > In the end I found _defaultMinimumTLSVersion in _sslverify.py. > > I set this to TLSVersion.TLSv1_2 and that seemed to do the trick. > > But I don't think I should be doing that. I think I've missed some obvious > place where I can pass in a value to change this. > > Anyone know where I should be looking. > > Thanks for any info > > -- > John Aherne > > > > www.rocs.co.uk <http://www.rocs.co.uk/> > 020 7223 7567 > _______________________________________________ > Twisted-Python mailing list > Twisted-Python@twistedmatrix.com > https://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
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