A website requires that users creates a password with the following specificatio

Question

A website requires that users creates a password with the following specifications:
-Length between 8 and 10 characters -May contain a special character (total of 24) -No spaces -May contain numbers (0-9), lower and upper case letters (a-z, A-Z) -Is case sensitive A. How many possible passwords are there if ONLY ONE special character is required? B. How many possible passwords are there if AT LEAST ONE special character is required? C. How long would it take to try all passwords if a password can be tested in 1 micro second (10-6)? A website requires that users creates a password with the following specifications:
-Length between 8 and 10 characters -May contain a special character (total of 24) -No spaces -May contain numbers (0-9), lower and upper case letters (a-z, A-Z) -Is case sensitive A. How many possible passwords are there if ONLY ONE special character is required? B. How many possible passwords are there if AT LEAST ONE special character is required? C. How long would it take to try all passwords if a password can be tested in 1 micro second (10-6)?

Explanation / Answer

62^8 + 62^9 + 62^10 + 8 * 24 * 62^7 + 9 * 24 * 62^8 + 10 * 24 * 62^9 Now, we can deduct the first three terms to arrive at 8 * 24 * 62^7 + 9 * 24 * 62^8 + 10 * 24 * 62^9 So that we are talking about all passwords that have at least one special character. unique passwords Take whichever total you want and multiply it by 1 microsecond per password. That will give you how long it will take

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