Q. A brute force attack against an encryption system:
✅ Correct Answer: (D)
tries to gain access by trying every possible key
Explanation:
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.
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.