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pskc_get_key_algparm_chall_checkdigits(3)                              libpskc

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:
       http://www.gnu.org/software/libpskc/ General help using GNU software:
       http://www.gnu.org/gethelp/

COPYRIGHT
       Copyright (C) 2012-2015 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.

libpskc                              2.6.1
                                     pskc_get_key_algparm_chall_checkdigits(3)