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SESS_ID(1)			    OpenSSL			    SESS_ID(1)

NAME
       openssl-sess_id,	sess_id	- SSL/TLS session handling utility

SYNOPSIS
       openssl sess_id [-help] [-inform	PEM|DER] [-outform PEM|DER|NSS]	[-in
       filename] [-out filename] [-text] [-noout] [-context ID]

DESCRIPTION
       The sess_id process the encoded version of the SSL session structure
       and optionally prints out SSL session details (for example the SSL
       session master key) in human readable format. Since this	is a
       diagnostic tool that needs some knowledge of the	SSL protocol to	use
       properly, most users will not need to use it.

OPTIONS
       -help
	   Print out a usage message.

       -inform DER|PEM
	   This	specifies the input format. The	DER option uses	an ASN1	DER
	   encoded format containing session details. The precise format can
	   vary	from one version to the	next.  The PEM form is the default
	   format: it consists of the DER format base64	encoded	with
	   additional header and footer	lines.

       -outform	DER|PEM|NSS
	   This	specifies the output format. The PEM and DER options have the
	   same	meaning	and default as the -inform option. The NSS option
	   outputs the session id and the master key in	NSS keylog format.

       -in filename
	   This	specifies the input filename to	read session information from
	   or standard input by	default.

       -out filename
	   This	specifies the output filename to write session information to
	   or standard output if this option is	not specified.

       -text
	   Prints out the various public or private key	components in plain
	   text	in addition to the encoded version.

       -cert
	   If a	certificate is present in the session it will be output	using
	   this	option,	if the -text option is also present then it will be
	   printed out in text form.

       -noout
	   This	option prevents	output of the encoded version of the session.

       -context	ID
	   This	option can set the session id so the output session
	   information uses the	supplied ID. The ID can	be any string of
	   characters. This option won't normally be used.

OUTPUT
       Typical output:

	SSL-Session:
	    Protocol  :	TLSv1
	    Cipher    :	0016
	    Session-ID:	871E62626C554CE95488823752CBD5F3673A3EF3DCE9C67BD916C809914B40ED
	    Session-ID-ctx: 01000000
	    Master-Key:	A7CEFC571974BE02CAC305269DC59F76EA9F0B180CB6642697A68251F2D2BB57E51DBBB4C7885573192AE9AEE220FACD
	    Key-Arg   :	None
	    Start Time:	948459261
	    Timeout   :	300 (sec)
	    Verify return code 0 (ok)

       Theses are described below in more detail.

       Protocol
	   This	is the protocol	in use TLSv1.3,	TLSv1.2, TLSv1.1, TLSv1	or
	   SSLv3.

       Cipher
	   The cipher used this	is the actual raw SSL or TLS cipher code, see
	   the SSL or TLS specifications for more information.

       Session-ID
	   The SSL session ID in hex format.

       Session-ID-ctx
	   The session ID context in hex format.

       Master-Key
	   This	is the SSL session master key.

       Start Time
	   This	is the session start time represented as an integer in
	   standard Unix format.

       Timeout
	   The timeout in seconds.

       Verify return code
	   This	is the return code when	an SSL client certificate is verified.

NOTES
       The PEM encoded session format uses the header and footer lines:

	-----BEGIN SSL SESSION PARAMETERS-----
	-----END SSL SESSION PARAMETERS-----

       Since the SSL session output contains the master	key it is possible to
       read the	contents of an encrypted session using this information.
       Therefore appropriate security precautions should be taken if the
       information is being output by a	"real" application. This is however
       strongly	discouraged and	should only be used for	debugging purposes.

BUGS
       The cipher and start time should	be printed out in human	readable form.

SEE ALSO
       ciphers(1), s_server(1)

COPYRIGHT
       Copyright 2000-2018 The OpenSSL Project Authors.	All Rights Reserved.

       Licensed	under the OpenSSL license (the "License").  You	may not	use
       this file except	in compliance with the License.	 You can obtain	a copy
       in the file LICENSE in the source distribution or at
       <https://www.openssl.org/source/license.html>.

1.1.1d				  2019-09-10			    SESS_ID(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OUTPUT | NOTES | BUGS | SEE ALSO | COPYRIGHT

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