OpenSSL 3 started generating DH parameters that are not considered valid by `DH_check` for older OpenSSL 1.0.2.
Since we can't change clients in the wild, I generated a set of DH params (`openssl dhparam 2048`) on an older OpenSSL 1.0.2 which appears to be considered acceptable by both versions of OpenSSL.
This fixes the set of DH parameters (instead of generating them each time), which is fairly typical, and also increases the size from 512 (insecure) to 2048.
Fixes #2014
You can view, comment on, or merge this pull request online at:
https://github.com/xrootd/xrootd/pull/2026
-- Commit Summary --
* Switch to a fixed set of DH parameters compatible with older OpenSSL.
-- File Changes --
M src/XrdCrypto/XrdCryptosslCipher.cc (25)
M src/XrdCrypto/XrdCryptosslCipher.hh (2)
-- Patch Links --
https://github.com/xrootd/xrootd/pull/2026.patch
https://github.com/xrootd/xrootd/pull/2026.diff
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