Passwords protect computer resources and files from unauthorized access by malicious
users. Using passwords is the most capable and effective way to protect information and to
increase the security level of a company. Password cracking is the process of recovering
passwords from data that have been stored in or transmitted by a computer system to gain
unauthorized access to a system.
Which of the following password cracking attacks tries every combination of characters until
the password is broken?
A.
Brute-force attack
B.
Rule-based attack
C.
Hybrid attack
D.
Dictionary attack
Explanation:
Reference:
http://books.google.com.pk/books?id=m2qZNW4dcyIC&pg=PA237&lpg=PA237&dq=passwo
rd+cracking+attacks+tries+every+combination+of+characters+until+the+password+is+broke
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ei=ZdwdVJm3CoXSaPXsgPgM&ved=0CCEQ6AEwAQ#v=onepage&q=password%20cracki
ng%20attacks%20tries%20every%20combination%20of%20characters%20until%20the%20
password%20is%20broken&f=false
A
tries every combination of characters until
the password is broken
Answer is
D.Dictionary attack
I found correct answer at ECSA page 475，
So answer is A。
Its A since a dictionary attack uses lists of passwords
In terms of cryptanalysis – Bruteforce attacks basically involve trying all possible keys while Dictionary attacks only try possibilities which are most likely to succeed, usually derived from a dictionary file.
I think the correct answer is A