NAME

       tss2_createseal(1) -

SYNOPSIS

       tss2_createseal [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 parameters and PCR bank selection.

DESCRIPTION

       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.  TPM signing schemes are used as specified in the
       cryptographic profile (cf., fapi-profile(5)).

OPTIONS

       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 (““).  The maximum password size is determined by the digest size
         of the chosen name hash algorithm in the cryptographic profile  (cf.,  fapi-profile(5)).
         For example, choosing SHA256 as hash algorithm, allows passwords of a maximum size of 32
         characters.

       • -i, --data=FILENAME or - (for stdin):

         The data to be sealed by the TPM.  Optional parameter.  Must not be used  together  with
         --size.

       • -s, --size=INTEGER:

         Determines  the  number  of  random  bytes  the  TPM should generate and seal.  Optional
         parameter.  Must not be “0”.  Must no be used together with --data.

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

   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

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)