4 ms·
Combine that with the assumption that the average consumer probably used a date of some significance for their 4-digit code and in the US you can guess that 0 o
by mdip 14y ago
Combine that with the assumption that the average consumer probably used a date of some significance for their 4-digit code and in the US you can guess that 0 or 1 was first, 0, 1, 2 or 3 was the third position, leaving you only to guess the second and fourth position.
- rogerbinns 14y agoThere are only 24 possible combinations of a 4 digit code anyway (assuming 4 different digits). I doubt the devices do a lockout on the wrong code, so it wouldn't take that long to hack.
- deleted 14y ago[deleted]
- mikesun 14y agouh, where'd you get 24? how about 10 X 9 X 8 X 7 = 5040 combinations.
- mappu 14y ago>I've actually encountered keypads where the order didn't actually matter If the order really doesn't matter, then that counts combinations twice (1234, 1243..). There are 10000 possible 4-digit codes, 5040 permutations, and actually 210 combinations.
- rogerbinns 14y agoYou haven't taken into account that by looking at the keypad you can tell which digits are actually used.
- rogerbinns 14y agoBecause from fingerprints and similar gunk on the pad you can tell which 4 digits were used.