SSL/TLS - Session (Connection)

About

A SSL/TLS session is a session between two applications that have successfully performed an SSL Handshake.

Management

Test the connection and see the server certificates

You can examine the connection and server certificate connection with portecle

See the session info

With OpenSsl and the s_client command 1)

openssl s_client -connect host:443 -state -debug

At the end of the handshake, you can see the session info.

SSL-Session:
    Protocol  : TLSv1.3
    Cipher    : TLS_AES_256_GCM_SHA384
    Session-ID: 38E38C70E914EA40D81C47E662EE477109A79F93362EB0BA9D7DB9BEF9F79A02
    Session-ID-ctx:
    Resumption PSK: 7A877BEAA39FC03077ACAC5D8F875E0D9C3942E9EC17FDEA19255AFCD8CC697323C217FF4AF6EAB65123FED80457D42E
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    TLS session ticket lifetime hint: 14400 (seconds)
    TLS session ticket:
    0000 - 47 ea 4d 76 24 fa a9 01-08 85 5a 02 e2 f2 14 60   G.Mv$.....Z....`
    0010 - 6a 51 cc e1 90 65 0c 22-6c 6b 0e 48 34 c0 34 5e   jQ...e."lk.H4.4^

    Start Time: 1647165467
    Timeout   : 7200 (sec)
    Verify return code: 0 (ok)
    Extended master secret: no
    Max Early Data: 0

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