[openssl-users] Extracting Handshake Information

Dr. Stephen Henson steve at openssl.org
Mon Mar 13 19:08:39 UTC 2017

On Tue, Mar 14, 2017, Vijayakumar Kaliaperumal wrote:

> Hello,
> Is there a way in openssl we can extract the protocol(TLS/DTLS ) handshake
> information, like in clienthello,  the protocol version, ciphersuites
> offered, Random,  session id etc.

You can get some useful information with the -trace option to
s_client/s_server which needs the configuration option enable-ssl-trace

Dr Stephen N. Henson. OpenSSL project core developer.
Commercial tech support now available see: http://www.openssl.org

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