diff options
| -rw-r--r-- | bin/ykfde.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/bin/ykfde.c b/bin/ykfde.c index 21e7bea..2f1e73a 100644 --- a/bin/ykfde.c +++ b/bin/ykfde.c @@ -43,6 +43,7 @@ #define CHALLENGELEN SHA1_MAX_BLOCK_SIZE #define RESPONSELEN SHA1_MAX_BLOCK_SIZE #define PASSPHRASELEN SHA1_DIGEST_SIZE * 2 +#define MAX2FLEN CHALLENGELEN / 2 const static char optstring[] = "hn:s:V"; const static struct option options_long[] = { @@ -229,7 +230,7 @@ int main(int argc, char **argv) { * add second factor to new challenge */ tmp = new_2nd_factor ? new_2nd_factor : payload; plen = strlen(tmp); - memcpy(challenge_new, tmp, plen < CHALLENGELEN / 2 ? plen : CHALLENGELEN / 2); + memcpy(challenge_new, tmp, plen < MAX2FLEN ? plen : MAX2FLEN); /* do challenge/response and encode to hex */ if ((rc = yk_challenge_response(yk, yk_slot, true, @@ -278,7 +279,7 @@ int main(int argc, char **argv) { /* copy the second factor */ plen = strlen(payload); - memcpy(challenge_old, payload, plen < CHALLENGELEN / 2 ? plen : CHALLENGELEN / 2); + memcpy(challenge_old, payload, plen < MAX2FLEN ? plen : MAX2FLEN); /* do challenge/response and encode to hex */ if ((rc = yk_challenge_response(yk, yk_slot, true, |