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authorKim Alvefur <zash@zash.se>2019-08-25 20:22:35 +0200
committerKim Alvefur <zash@zash.se>2019-08-25 20:22:35 +0200
commit5291ea4c7c281cedc3d6810743b533628412305c (patch)
tree8d3f64e03dc88b1d4127ed767ebf6ab67089253f /core/portmanager.lua
parent375b817e8a94df861b3aa468af66f52a0a30bd67 (diff)
downloadprosody-5291ea4c7c281cedc3d6810743b533628412305c.tar.gz
prosody-5291ea4c7c281cedc3d6810743b533628412305c.zip
core.certmanager: Move EECDH ciphers before EDH in default cipherstring (fixes #1513)
Backport of 94e341dee51c 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
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