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HACKERS @ 10721:3a1b1d3084fb 0.11
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
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 25 Aug 2019 20:22:35 +0200 |
parent | 7359:a5a080c12c96 |
child | 9858:54147de1d1b1 |
rev | line source |
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13 | 1 Welcome hackers! |
2 | |
1082 | 3 This project accepts and *encourages* contributions. If you would like to get |
4 involved you can join us on our mailing list and discussion rooms. More | |
7359
a5a080c12c96
Update every link to the documentation to use HTTPS
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
2664
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changeset
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5 information on these at https://prosody.im/discuss |
13 | 6 |
1082 | 7 Patches are welcome, though before sending we would appreciate if you read |
2664 | 8 docs/coding_style.txt for guidelines on how to format your code, and other tips. |
9 | |
7359
a5a080c12c96
Update every link to the documentation to use HTTPS
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
2664
diff
changeset
|
10 Documentation for developers can be found at https://prosody.im/doc/developers |
2664 | 11 |
12 Have fun :) |