NAME

       pskc_get_key_algparm_chall_checkdigits - API function

SYNOPSIS

       #include <pskc.h>

       int pskc_get_key_algparm_chall_checkdigits(pskc_key_t * key, int * present);

ARGUMENTS

       pskc_key_t * key
                   a pskc_key_t handle, from pskc_get_keypackage().

       int * present
                   output variable indicating whether data was provided or not.

DESCRIPTION

       Get  the  PSKC KeyPackage Key AlgorithmParameters ChallengeFormat CheckDigits value.  This
       attribute indicates whether a device needs to check the  appended  Luhn  check  digit,  as
       defined  in  [ISOIEC7812], contained in a challenge.  This is only valid if the 'Encoding'
       attribute is set to 'DECIMAL'.  A value of TRUE indicates that the device will  check  the
       appended  Luhn  check  digit in a provided challenge.  A value of FALSE indicates that the
       device will not check the appended Luhn check digit in the challenge.

       If present is non-NULL, it will be 0 if the field is not present or 1 if it was present.

RETURNS

       1 to indicate a CheckDigits value of true, or 0 to indicate false.

REPORTING BUGS

       Report     bugs     to     <oath-toolkit-help@nongnu.org>.      libpskc     home     page:
       https://www.nongnu.org/oath-toolkit/      General     help     using     GNU     software:
       http://www.gnu.org/gethelp/

COPYRIGHT

       Copyright © 2012-2020 Simon Josefsson.
       Copying and distribution of this file, with or without modification, are permitted in  any
       medium without royalty provided the copyright notice and this notice are preserved.