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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | EXIT STATUS | SEE ALSO | AUTHORS | COPYRIGHT | BUGS | COLOPHON |
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tpmtool(1) User Commands tpmtool(1)
tpmtool - GnuTLS TPM tool
tpmtool [-flags] [-flag [value]] [--option-name[[=| ]value]]
All arguments must be options.
Program that allows handling cryptographic data from the TPM
chip.
-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.
--infile=file Input file.
--outfile=str Output file.
--generate-rsa Generate an RSA private-public key pair.
Generates an RSA private-public key pair in the TPM chip. The
key may be stored in file system and protected by a PIN, or
stored (registered) in the TPM chip flash.
--register Any generated key will be registered in the TPM. This
option must appear in combination with the following options:
generate-rsa.
--signing Any generated key will be a signing key. This option
must not appear in combination with any of the following options:
legacy. This option must appear in combination with the
following options: generate-rsa.
--legacy Any generated key will be a legacy key. This option
must not appear in combination with any of the following options:
signing. This option must appear in combination with the
following options: generate-rsa.
--user Any registered key will be a user key. This option must
not appear in combination with any of the following options:
system. This option must appear in combination with the
following options: register.
The generated key will be stored in a user specific persistent
storage.
--system Any registered key will be a system key. This option
must not appear in combination with any of the following options:
user. This option must appear in combination with the following
options: register.
The generated key will be stored in system persistent storage.
--pubkey=url Prints the public key of the provided key.
--list Lists all stored keys in the TPM.
--delete=url Delete the key identified by the given URL (UUID).
--test-sign=url Tests the signature operation of the provided
object.
It can be used to test the correct operation of the signature
operation. This operation will sign and verify the signed data.
--sec-param=security parameter Specify the security level [low,
legacy, medium, high, ultra].
This is alternative to the bits option. Note however that the
values allowed by the TPM chip are quantized and given values may
be rounded up.
--bits=num Specify the number of bits for key generate. This
option takes an integer number as its argument.
--inder, --no-inder Use the DER format for keys. The no-inder
form will disable the option.
The input files will be assumed to be in the portable DER format
of TPM. The default format is a custom format used by various TPM
tools
--outder, --no-outder Use DER format for output keys. The
no-outder form will disable the option.
The output will be in the TPM portable DER format.
--srk-well-known SRK has well known password (20 bytes of zeros).
-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 generate a key that is to be stored in file system use:
$ tpmtool --generate-rsa --bits 2048 --outfile tpmkey.pem
To generate a key that is to be stored in TPM's flash use:
$ tpmtool --generate-rsa --bits 2048 --register --user
To get the public key of a TPM key use:
$ tpmtool --pubkey tpmkey:uuid=58ad734b-bde6-45c7-89d8-756a55ad1891;storage=user --outfile pubkey.pem
or if the key is stored in the file system:
$ tpmtool --pubkey tpmkey:file=tmpkey.pem --outfile pubkey.pem
To list all keys stored in TPM use:
$ tpmtool --list
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.
p11tool(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: [email protected]
This page is part of the GnuTLS (GnuTLS Transport Layer Security
Library) project. Information about the project can be found at
⟨http://www.gnutls.org/⟩. If you have a bug report for this
manual page, send it to [email protected]. This page was obtained
from the tarball gnutls-3.8.5.tar.xz fetched from
⟨http://www.gnutls.org/download.html⟩ on 2024-06-14. If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to [email protected]
3.8.5 04 Apr 2024 tpmtool(1)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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