I’ve read that SHA1 can be brute forced however why Mozilla Firefox forces a 
ECDH is misunderstood if attempting to negotiate for example RSA

In my experience sea monkey can authenticate correctly against an apple 
key-chain however Firefox returns cipher suite errors
Regards
Patrick


> On Aug 29, 2017, at 2:25 PM, Rupert Gallagher <[email protected]> wrote:
> 
> https://www.ssllabs.com/ssltest/viewClient.html?name=Firefox&version=53&platform=Win%207&key=142
> 
> Sent from ProtonMail Mobile
> 
> On Tue, Aug 29, 2017 at 5:08 PM, Patrick Dohman 
> <[email protected]> wrote:
> 
>> My current understanding is that Mozilla Firefox also has issues with ECDHE. 
>> For example applications implementing a web server and library specific 
>> cipher suites may be incompatible with Firefox if ECDHE is enabled . However 
>> the same self signed certificate installed in different web server for 
>> example apache are compatible with Firefox with ECDHE enabled. My current 
>> hypothesis is that not all open source projects ‘"purchased" a class three 
>> public certificate authority from the likes of Symantec with prevents the 
>> certificate store from falling back to a SSL 3.0 That essentially to all 
>> certificate stores are equal & that hashing an appropriate algorithm is 
>> becoming non standardized in the event that the certificate is not a trusted 
>> root. Regards Patrick > On Aug 29, 2017, at 8:23 AM, Rupert Gallagher wrote: 
>> > >> Clean up the EC key/curve configuration handling. We no longer support 
>> ECDH and ECDHE can be disabled by removing ECDHE ciphers from the cipher 
>> list. As such, permanently enable automatic EC curve selection and 
>> generation, effectively disabling all of the configuration knobs. > > 
>> https://www.tedunangst.com/flak/post/openbsd-changes-of-note-627 > > The 
>> description @protonmail.com>

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