psktool(1) User Commands psktool(1)

psktool - GnuTLS PSK tool

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.


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.


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


Specify the username to use.


Specify a pre-shared key file.

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


This is an alias for the --pskfile option.

NOTE: THIS OPTION IS DEPRECATED


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.

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

16 Jan 2024 3.8.3