3 ms·
If you knew that everyone used four different digits for keypad locks, that would dramatically reduce the number of possible combinations you had to try... How
by billybob 17y ago
If you knew that everyone used four different digits for keypad locks, that would dramatically reduce the number of possible combinations you had to try...
How about "use something random, change the keys before they wear down, and wipe them before and after use if you're paranoid."
- ars 17y ago4 presses out of 10 options, allowing duplicates, and order is significant: 10,000 options. 4 presses out of 10 options, not allowing duplicates, and order is significant: 5,040 options. It's less certainly, but not dramatically. 4 presses out of 10 options, not allowing duplicates, and order is not significant: 210. That, I would call a dramatic reduction. In a typical 10 button number lock order is not important, and you can choose from 1 to 10 presses: 1024 options.