DF90V9oJCSPieB_U_c-xtNOebvY Gray Hat: What Is Brute Force Attack

Tuesday 18 June 2013

What Is Brute Force Attack

What Is Brute Force Attack


What is Brute Force attack?
Brute force attack is one of the password cracking method. In this method we are not decrypting the passwords. Instead we are trying to crack the password by comparing different combination of characters (all possible keys) with hash code. 

How ?
Let us assume the password length is 3. we have characters set(abcdefghijklmnopqrstuvwxyz0123456789) excluding the special characters.

The Number of Permutation takes to crack the password:
For first character :upper case letters(26 )+Lower Case Letters(26)+10 Numbers =62
Likewise for second and third character we have 62 different ways.
So the total permutation to produce different keys is =62*62*62=238328 ways.

If you include the special characters in character set,then the permutation to crack the password will increase.

The main problem with Brute force attack :
If the password length is small,then it will be cracked in small amount of time. This method will take too longer time to crack lengthy passwords. It can take several hours, days ,months ,years.
The time depending upon the two factors :
Password Length
Upper case and lower case letter combinations. 

Conclusion:
For Hackers:
Hope you understand about brute force attack,also the drawback of this method. You can take advantage if the password is simple and small in length.

For Security needers
If you really want to secure your account from hackers, then use the Strong password. Don't know how to create the strong passwords ? No need to worry,read this:

What is your password ? is your password like 123456, 98654, billgates,yourname,lovername,iloveyou,thankyou? Then you will definitely loose your account soon. The hackers can easily hack your account with much effort.

Your password should be :

Above 10 letters
Both uppercase and lowercase letters
Should use special characters like '&'.
Should contain Numbers
Should not Use any names of your lover ,mother,father,etc.
Should not be usual words like iloveyou,ihateyou,ihateu.
Should not be your birthday like oct2010.

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