sess_id(1)

     SESS_ID(1)             0.9.6h (2000-02-03)             SESS_ID(1)

     NAME
          sess_id - SSL/TLS session handling utility

     SYNOPSIS
          openssl sess_id [-inform PEM|DER] [-outform PEM|DER] [-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.

          -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
              This specifies the output format, the options have the
              same meaning as the -inform option.

          -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

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              string of characters. This option wont 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, SSLv3 or SSLv2.

          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.

          Key-Arg
              the key argument, this is only used in SSL v2.

          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:

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           -----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)

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