Suppose that you are a hacker trying to hack into a password-protected system. G

Question

Suppose that you are a hacker trying to hack into a password-protected system. Given that the passwords can be anywhere from 1 to 13 characters including special characters long and the passwords are alphanumeric, how many possible passwords are there? From ASCII table determine the total number of possible characters for this purpose. Give reasons for selecting the character set. If it takes you 1 millisecond to check one password on average, how long will it take you to check all possible passwords? If it takes you 100 microseconds to check one password on average, then how long will it take?

Explanation / Answer

Required Data:

ASCII contains 128 characters of which 33 are non-printable and remaining 95(128-33) are printable.

Solution

Number of 13 possible thirteen letter passwords (allows repetitions) are

It will take 9513 * 1 millisec=9513 Milli Seconds to check all passwords

It will take 9513 * 100 microseconds to check all passwords

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