NAME

       tss2_createnv(1) -

SYNOPSIS

       tss2_createnv [OPTIONS]

SEE ALSO

       fapi-config(5)  to adjust Fapi parameters like the used cryptographic profile and TCTI or directories for
       the Fapi metadata storages.

       fapi-profile(5) to determine the cryptographic algorithms and parameters for all keys and operations of a
       specific TPM interaction like the name hash algorithm, the asymmetric signature algorithm, scheme and pa‐
       rameters and PCR bank selection.

DESCRIPTION

       tss2_createnv(1) - This command creates an NV index in the TPM.

OPTIONS

       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,  Plat‐
         form_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 (““).  The  maxi‐
         mum  password  size  is  determined by the digest size of the chosen name hash algorithm in the crypto‐
         graphic profile (cf., fapi-profile(5)).  For example, choosing SHA256 as hash algorithm,  allows  pass‐
         words of a maximum size of 32 characters.

COMMON OPTIONS

       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.

EXAMPLE

              tss2_createnv --authValue=abc --path=/nv/Owner/myNV --size=20 --type="noDa"

RETURNS

       0 on success or 1 on failure.

BUGS

       Github Issues (https://github.com/tpm2-software/tpm2-tools/issues)

HELP

       See the Mailing List (https://lists.linuxfoundation.org/mailman/listinfo/tpm2)

tpm2-tools                                         APRIL 2019                                   tss2_createnv(1)