NAME

       tss2_createkey(1) -

SYNOPSIS

       tss2_createkey [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_createkey(1) - This commands creates a key inside the TPM and stores it in the FAPI  metadata  store
       and  if  requested persistently inside the TPM.  Depending on the specified key type, cryptographic algo‐
       rithms and parameters for the created key are determined by the corresponding 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:

                - "sign": Sets the sign attribute of a key.
                - "decrypt": Sets the decrypt attribute of a key.
                - Hint: If neither sign nor decrypt are provided, both attributes are set.
                - "restricted": Sets the restricted attribute of a key.
                - Hint: If restricted is set, sign or decrypt (but not both) need to be set.
                - "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:

         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  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

   Create a key without password
              tss2_createkey --path=HS/SRK/myRsaCryptKey --type="noDa, decrypt" --authValue=""

   Create a key, ask for password on the command line
              tss2_createkey --path=HS/SRK/myRsaCryptKey --type="noDa, decrypt"

   Create a key with password “abc”.
              tss2_createkey --path=HS/SRK/myRsaCryptKey --type="noDa, decrypt" --authValue=abc

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_createkey(1)