NAME

       tss2_exportkey(1) -

SYNOPSIS

       tss2_exportkey [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_exportkey(1) - This command will duplicate a key and encrypt it using the public  key
       of  a  new  parent.   The  exported data will contain the re-wrapped key pointed to by the
       pathOfKeyToDuplicate and then the JSON encoded policy.  Encryption is  done  according  to
       TPM encryption schemes specified in the cryptographic profile (cf., fapi-profile(5)).

OPTIONS

       These are the available options:

       • -e --pathToPublicKeyOfNewParent=STRING:

         The  path  to  the  public  key  of  the  new parent.  This key MAY be in the public key
         hierarchy /ext.  Optional parameter.  If omitted only the public key will exported.

       • -f, --force:

         Force overwriting the output file.

       • -o, --exportedData=FILENAME or - (for stdout):

         Returns the exported subtree.

       • -p, --pathOfKeyToDuplicate=STRING:

         The path to the root of the subtree to export.

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_exportkey --pathOfKeyToDuplicate=HS/SRK/myRSADecrypt --exportedData=exportedData.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)