tss2_getrandom(1)           General Commands Manual          tss2_getrandom(1)

NAME
       tss2_getrandom(1) - # SYNOPSIS

       tss2_getrandom [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_getrandom(1) - This command uses the TPM to create an array of
       random bytes.

OPTIONS
       These are the available options:

       o -n, --numBytes=INTEGER:

         The number of bytes requested by the caller.

       o -f, --force:

         Force overwriting the output file.

       o -o, --data=FILENAME or - (for stdout):

         The returned random bytes.

       o --hex

         Convert the output data to hex format without a leading "0x".

COMMON OPTIONS
       This collection of options are common to all tss2 programs and provide
       information that many users may expect.

       o -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.

       o -v, --version: Display version information for this tool, supported
         tctis and exit.

EXAMPLE

                  tss2_getrandom --numBytes=20 --data=- | hexdump -C


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_getrandom(1)