6 items are filed under this topic.
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A 4 digit combination lock |
2019-02-02 |
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From Brijanshu:
I have a lock that contain only four no. 6,7,8 & 9 . How many possible password of four digit containing these Number.
Answered by Penny Nom. |
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A lost iPhone pass code |
2017-04-17 |
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From Sam:
I have a locked iPhone and it has all my of my holiday photos on it. I changed the password and then I think I did a incorrect number pattern but anyway I know it ends with 99 and the first 4 digits are 235 and 6 could you please send all of the combinations for this password (without the 99) Thx and plz get back ASAP I need it for school
Answered by Penny Nom. |
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Six-digit passwords |
2013-03-19 |
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From Judy:
Hello:
Can you please explain why the answer to the following question is 10^6?
What is the number of possible six-digit passwords when using the digits 0 through 9, with repetition allowed.
Thank you.
Answered by Penny Nom. |
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Passwords |
2009-07-08 |
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From Tim:
pretend I have a password that is - 9k7d4112p5o
assuming that you continuously guessed wrong until that exact
combination was the only possible answer left;
how many times would you have to guess?
capital letters are not relevant
and you do not know how many digits there are
Answered by Stephen La Rocque. |
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2 password policies |
2007-10-17 |
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From Larry:
2 password policies are in question.
Policy 1 states that a password must be between 6 and 8 characters
Policy 2 states that that a password must be exactly 8 characters.
Both policies state that Passwords can contain A-Z a-z 0-9 (26*2)+ 10 characters to choose from.
Which policy is stronger?
How many potential passwords exist for policy 1 and how many for policy 2?
Answered by Penny Nom. |
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Nine character passwords |
2007-03-27 |
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From oliver:
suppose a password consisted of a string of nine characters from the
english alphabet(26 characters). if each possible password could be tested
in a microsecond,how long would it take to test all possible passwords?
Answered by Penny Nom. |
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