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Manisha Agrawal • 9.34K Points
Tutor III Computer

Q. A brute force attack against an encryption system:

  • (A) is known as RC4
  • (B) is also known as 3DES
  • (C) always uses the Rijndael algorithm
  • (D) tries to gain access by trying every possible key
  • Correct Answer - Option(D)
  • Views: 634
  • Filed under category Computer
Explanation by: Mr. Dubey

A brute force attack is a method used to crack an encryption system by systematically trying every possible key until the correct one is found.

  • It does not depend on any specific algorithm like RC4, 3DES, or Rijndael.

Other options:

  • (A) RC4 – A stream cipher algorithm, not a brute force method.
  • (B) 3DES – An encryption algorithm, not a brute force method.
  • (C) Rijndael – The algorithm used in AES (Advanced Encryption Standard), again not a brute force method.

So, (D) is correct – a brute force attack tries every possible key to gain access.

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