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 pa‐
       rameters and PCR bank selection.

DESCRIPTION

       tss2_exportkey(1) - This command will duplicate a key and encrypt it using the public key of a  new  par‐
       ent.   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 crypto‐
       graphic 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.   Op‐
         tional 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)

tpm2-tools                                         APRIL 2019                                  tss2_exportkey(1)