tss2_createseal(1) - This command creates a sealed object and stores it in the FAPI metadata store. If no data is provided (i.e. a NULL-pointer) then the TPM generates random data and fills the sealed object.
These are the available options:
-p, --path STRING:
The path to the new key.
-t, --type STRING:
Identifies the intended usage. Optional parameter. Types may be any comma-separated combination of:
- "exportable": Clears the fixedTPM and fixedParent attributes of a key or sealed object. - "noda": Sets the noda attribute of a key or NV index. - "system": Stores the data blobs and metadata for a created key or seal in the system-wide directory instead of user's personal directory. - A hexadecimal number (e.g. "0x81000001"): Marks a key object to be made persistent and sets the persistent object handle to this value.
-P, --policyPath STRING:
Identifies the policy to be associated with the new key. Optional parameter. If omitted then no policy will be associated with the key.
A policyPath is composed of two elements, separated by “/”. A policyPath starts with “/policy”. The second path element identifies the policy or policy template using a meaningful name.
-a, --authValue STRING:
The new UTF-8 password. Optional parameter. If it is neglected then the user is queried interactively for a password. To set no password, this option should be used with the empty string ("").
-i, --data FILENAME or - (for stdin):
The data to be sealed by the TPM. Optional parameter.
This collection of options are common to all tss2 programs and provide information that many users may expect.
-h, --help [man|no-man]: Display the tools manpage. By default, it attempts to invoke the manpager for the tool, however, on failure will output a short tool summary. This is the same behavior if the “man” option argument is specified, however if explicit “man” is requested, the tool will provide errors from man on stderr. If the “no-man” option if specified, or the manpager fails, the short options will be output to stdout.
To successfully use the manpages feature requires the manpages to be installed or on MANPATH, See man(1) for more details.
- -v, --version: Display version information for this tool, supported tctis and exit.
Create a key with password “abc” and read sealing data from file.
tss2_createseal --path HS/SRK/mySealKey --type "noDa" --authValue abc --data data.file
0 on success or 1 on failure.
Github Issues (https://github.com/tpm2-software/tpm2-tools/issues)
See the Mailing List (https://lists.01.org/mailman/listinfo/tpm2)