[Cryptography] 9999 keys for this one iPhone

[Tom Mitchell]

On Mon, Feb 29, 2016 at 11:08 AM, Ben Laurie <ben at links.org> wrote:

>
> On 29 February 2016 at 09:55, Tom Mitchell <mitch at niftyegg.com> wrote:
>
>> With a four number PIN there are 9999 keys for the
>> data on the phone.  All other secrets are constants.
>>
>
> Counting is hard. 10,000.
>

0, 1, 2, 3, ....
Programmers always confuse  things ;-)
Jokes aside you are correct I had assumed that 0000 was
illegal based on a one time experience.   I tested it and 0000
is a legal PIN.    If  if 9999 fail then the 10000th is the
answer and need not be tested.



-- 
  T o m    M i t c h e l l
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