I would have highlighted that OpenSSL 1.1.1d was being used in my testing. On Thu, Feb 27, 2020 at 5:13 PM John Jiang <john.sha.ji...@gmail.com> wrote:
> Hi, > It sounds FFDHE groups are already supported [1] > But the tools, like s_client, also support them. > Run the command: openssl s_client -tls1_3 -groups ffdhe2048 host:port > it just raised the issue: Error with command: "-groups ffdhe2048" > If using P-256 or X25519, it worked fine. > > I also tried option "-groups FFDHE2048". The same error raised again. > > [1] https://github.com/openssl/openssl/pull/8178 >
