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+.de1 NOP
+.  it 1 an-trap
+.  if \\n[.$] \,\\$*\/
+..
+.ie t \
+.ds B-Font [CB]
+.ds I-Font [CI]
+.ds R-Font [CR]
+.el \
+.ds B-Font B
+.ds I-Font I
+.ds R-Font R
+.TH psktool 1 "09 Feb 2023" "3.7.9" "User Commands"
+.SH NAME
+\f\*[B-Font]psktool\fP
+\- GnuTLS PSK tool
+.SH SYNOPSIS
+\f\*[B-Font]psktool\fP
+.\" Mixture of short (flag) options and long options
+[\f\*[B-Font]\-flags\f[]]
+[\f\*[B-Font]\-flag\f[] [\f\*[I-Font]value\f[]]]
+[\f\*[B-Font]\-\-option-name\f[][[=| ]\f\*[I-Font]value\f[]]]
+.sp \n(Ppu
+.ne 2
+
+All arguments must be options.
+.sp \n(Ppu
+.ne 2
+.SH "DESCRIPTION"
+Program  that generates random keys for use with TLS-PSK. The
+keys are stored in hexadecimal format in a key file.
+.sp
+.SH "OPTIONS"
+.TP
+.NOP \f\*[B-Font]\-d\f[] \f\*[I-Font]num\f[], \f\*[B-Font]\-\-debug\f[]=\f\*[I-Font]num\f[]
+Enable debugging.
+This option takes an integer number as its argument.
+The value of
+\f\*[I-Font]num\f[]
+is constrained to being:
+.in +4
+.nf
+.na
+in the range 0 through 9999
+.fi
+.in -4
+.sp
+Specifies the debug level.
+.TP
+.NOP \f\*[B-Font]\-s\f[] \f\*[I-Font]num\f[], \f\*[B-Font]\-\-keysize\f[]=\f\*[I-Font]num\f[]
+Specify the key size in bytes (default is 32-bytes or 256-bits).
+This option takes an integer number as its argument.
+The value of
+\f\*[I-Font]num\f[]
+is constrained to being:
+.in +4
+.nf
+.na
+in the range 0 through 512
+.fi
+.in -4
+.sp
+.TP
+.NOP \f\*[B-Font]\-u\f[] \f\*[I-Font]str\f[], \f\*[B-Font]\-\-username\f[]=\f\*[I-Font]str\f[]
+Specify the username to use.
+.sp
+.TP
+.NOP \f\*[B-Font]\-p\f[] \f\*[I-Font]str\f[], \f\*[B-Font]\-\-pskfile\f[]=\f\*[I-Font]str\f[]
+Specify a pre-shared key file.
+.sp
+This option will specify the pre\-shared key file to store the generated keys.
+.TP
+.NOP \f\*[B-Font]\-\-passwd\f[]
+This is an alias for the \fI--pskfile\fR option.
+.sp
+.B
+NOTE: THIS OPTION IS DEPRECATED
+.TP
+.NOP \f\*[B-Font]\-v\f[] \f\*[I-Font]arg\f[], \f\*[B-Font]\-\-version\f[]=\f\*[I-Font]arg\f[]
+Output version of program and exit.  The default mode is `v', a simple
+version.  The `c' mode will print copyright information and `n' will
+print the full copyright notice.
+.TP
+.NOP \f\*[B-Font]\-h\f[], \f\*[B-Font]\-\-help\f[]
+Display usage information and exit.
+.TP
+.NOP \f\*[B-Font]\-!\f[], \f\*[B-Font]\-\-more\-help\f[]
+Pass the extended usage information through a pager.
+
+.sp
+.SH EXAMPLES
+To add a user 'psk_identity' in \fIkeys.psk\fP for use with GnuTLS run:
+.br
+.in +4
+.nf
+$ ./psktool \-u psk_identity \-p keys.psk
+Generating a random key for user 'psk_identity'
+Key stored to keys.psk
+$ cat keys.psk
+psk_identity:88f3824b3e5659f52d00e959bacab954b6540344
+$
+.in -4
+.fi
+.sp
+This command will create \fIkeys.psk\fP if it does not exist
+and will add user 'psk_identity'.
+.SH "EXIT STATUS"
+One of the following exit values will be returned:
+.TP
+.NOP 0 " (EXIT_SUCCESS)"
+Successful program execution.
+.TP
+.NOP 1 " (EXIT_FAILURE)"
+The operation failed or the command syntax was not valid.
+.PP
+.SH "SEE ALSO"
+gnutls\-cli\-debug (1), gnutls\-serv (1), srptool (1), certtool (1)
+.SH "AUTHORS"
+
+.SH "COPYRIGHT"
+Copyright (C) 2020-2021 Free Software Foundation, and others all rights reserved.
+This program is released under the terms of
+the GNU General Public License, version 3 or later
+.
+.SH "BUGS"
+Please send bug reports to: bugs@gnutls.org