X25519 does not use DH parameters.
If you don’t set the parameters with a callback, or generate them and tell
openssl to use them, then EDH will not be used. Not that EDH is *not* the same
as ECDHE.
Don’t use DH, use X25519, for a number of reasons. Search “25519” to find more.
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openssl-us
Hi All,
In case no dh params are set and ECDHE-ECDSA type cipher is used, what is
the default size of DH params (what modulus) used on TLS handshake. I see
that X25519 EC is getting used but I am not sure about DH parameters in
that case
Thanks
Best Regards,
Neetish
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