pskc_get_key_algparm_chall_checkdigits (3) - Linux Manuals

pskc_get_key_algparm_chall_checkdigits: API function


pskc_get_key_algparm_chall_checkdigits - API function


#include <pskc.h>

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


pskc_key_t * key
a pskc_key_t handle, from pskc_get_keypackage().
int * present
output variable indicating whether data was provided or not.


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.


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


Report bugs to <oath-toolkit-help [at]>. libpskc home page: General help using GNU software:


Copyright © 2012 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.