psktool - Man Page

psktool [-flags] [-flag [value]] [--option-name[[=| ]value]]

All arguments must be options.

Program  that generates random keys for use with TLS-PSK. The keys are stored in hexadecimal format in a key file.

-d num, --debug=num

Enable debugging. This option takes an integer number as its argument. The value of num is constrained to being:

in the range 0 through 9999

Specifies the debug level.

-s num, --keysize=num

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 num is constrained to being:

in the range 0 through 512

-u str, --username=str

Specify the username to use.

-p str, --pskfile=str

Specify a pre-shared key file.

This option will specify the pre-shared key file to store the generated keys.

--passwd

This is an alias for the --pskfile option.

NOTE: THIS OPTION IS DEPRECATED

-v arg, --version=arg

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.

-h,  --help

Display usage information and exit.

-!,  --more-help

Pass the extended usage information through a pager.

To add a user 'psk_identity' in keys.psk for use with GnuTLS run:

$ ./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
$

This command will create keys.psk if it does not exist and will add user 'psk_identity'.

One of the following exit values will be returned:

0  (EXIT_SUCCESS)

Successful program execution.

1  (EXIT_FAILURE)

The operation failed or the command syntax was not valid.

gnutls-cli-debug (1), gnutls-serv (1), srptool (1), certtool (1)

Copyright (C) 2020-2023 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

Please send bug reports to: bugs@gnutls.org

certtool(1), libnbd(3), nbdkit(1), nbdkit-tls(1).