Software /
code /
prosody
File
plugins/mod_version.lua @ 10224:94e341dee51c
core.certmanager: Move EECDH ciphers before EDH in default cipherstring
The original intent of having kEDH before kEECDH was that if a `dhparam`
file was specified, this would be interpreted as a preference by the
admin for old and well-tested Diffie-Hellman key agreement over newer
elliptic curve ones. Otherwise the faster elliptic curve ciphersuites
would be preferred. This didn't really work as intended since this
affects the ClientHello on outgoing s2s connections, leading to some
servers using poorly configured kEDH.
With Debian shipping OpenSSL settings that enforce a higher security
level, this caused interoperability problems with servers that use DH
params smaller than 2048 bits. E.g. jabber.org at the time of this
writing has 1024 bit DH params.
MattJ says
> Curves have won, and OpenSSL is less weird about them now
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 25 Aug 2019 20:22:35 +0200 |
parent | 9436:a950f9fa9137 |
child | 12977:74b9e05af71e |
line wrap: on
line source
-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local st = require "util.stanza"; module:add_feature("jabber:iq:version"); local query = st.stanza("query", {xmlns = "jabber:iq:version"}) :text_tag("name", "Prosody") :text_tag("version", prosody.version); if not module:get_option_boolean("hide_os_type") then local platform; if os.getenv("WINDIR") then platform = "Windows"; else local os_version_command = module:get_option_string("os_version_command"); local ok, pposix = pcall(require, "util.pposix"); if not os_version_command and (ok and pposix and pposix.uname) then platform = pposix.uname().sysname; end if not platform then local uname = io.popen(os_version_command or "uname"); if uname then platform = uname:read("*a"); end uname:close(); end end if platform then platform = platform:match("^%s*(.-)%s*$") or platform; query:text_tag("os", platform); end end module:hook("iq-get/host/jabber:iq:version:query", function(event) local origin, stanza = event.origin, event.stanza; origin.send(st.reply(stanza):add_child(query)); return true; end);