tss2_createnv(1) - This command creates an NV index in the TPM.
These are the available options:
-p, --path STRING:
Path of the new NV space.
The path is composed of three elements, separated by “/”. An nvPath starts with “/nv”. The second path element identifies the NV handle range for the nv object. This includes the following values: Owner, TPM, Platform, Endorsement_Certificate, Platform_Certificate, Component_OEM, TPM_OEM, Platform_OEM, PC-Client, Server, Virtualized_Platform, MPWG, Embedded. The third path element identifies the actual NV-Index using a meaningful name.
-t, --type STRING:
Identifies the intended usage. Optional parameter. Types may be any comma-separated combination of:
- "noda": Sets the noda attribute of a key or NV index. - "bitfield": Sets the NV type to bitfield. - "counter": Sets the NV type to counter. - "pcr": Sets the NV type to pcr-like behavior. - Hint: If none of the previous three keywords is provided a regular NV index is created.
-s, --size INTEGER:
The size in bytes of the NV index to be created. Can be omitted if size can be inferred from the type; e.g. an NV index of type counter has a size of 8 bytes.
-P, --policyPath STRING:
Identifies the policy to be associated with the new NV space. 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 ("").
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.
tss2_createnv --authValue abc --path /nv/Owner/myNV --size 20 --type "noDa"
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)