B I On Sat, Sep 29, 2018 at 10:06 PM John Jiang <john.sha.ji...@gmail.com> wrote:
> Now that full handshake sends two sessions, does that mean option > -sess_out saves both of the sessions to a local file? > If so, when resume session via option -sess_in, which session will be > resumed? > > On Sun, Sep 30, 2018 at 11:47 AM Benjamin Kaduk via openssl-users < > openssl-users@openssl.org> wrote: > >> s_client has -sess_out and -sess_in options that can be used >> to save session information to a file and read it in for a subsequent >> connection. Neither is used by default. >> >> -Ben >> >> On Sun, Sep 30, 2018 at 11:06:14AM +0800, John Jiang wrote: >> > Does s_client resume any session in the local session file? >> > >> > On Sun, Sep 30, 2018 at 3:19 AM Salz, Rich via openssl-users < >> > openssl-users@openssl.org> wrote: >> > >> > > >> > > - The debug logs display two "SSL-Session" blocks in a full >> handshake. >> > > >> > > Only one "SSL-Session" block is displayed in a resumption. >> > > >> > > Why does full handshake has two sessions? >> > > >> > > >> > > >> > > This is part of the TLS 1.3 standard. A server can send back multiple >> > > sessions, so that a client may resume with a different session, and >> > > therefore prevent an observer from “linking” two different activities. >> > > -- >> > > openssl-users mailing list >> > > To unsubscribe: >> https://mta.openssl.org/mailman/listinfo/openssl-users >> > > >> >> > -- >> > openssl-users mailing list >> > To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users >> >> -- >> openssl-users mailing list >> To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users >> > -- > openssl-users mailing list > To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users >
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