Multiple choice technology security

Which of the following is a valid crypto graphic attack

  1. Padding Oracle Attack

  2. Padding CBC Attack

  3. Oracle Lockback

  4. Padding Filter
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A Correct answer
Explanation

A Padding Oracle Attack is a well-known cryptographic exploit against block cipher modes of operation (such as CBC mode) that leak information about whether the padding of a decrypted ciphertext is valid. The other options are incorrect or fabricated terms rather than established cryptographic attacks.

AI explanation

To answer this question, you need to understand cryptographic attacks. Let's go through each option to understand why it is correct or incorrect:

Option A) Padding Oracle Attack - This option is correct. A padding oracle attack is a type of cryptographic attack that targets systems using padding in cryptographic protocols. The attacker exploits the system's behavior when it receives padding errors to decrypt or manipulate encrypted data.

Option B) Padding CBC Attack - This option is incorrect. Padding CBC attack is not a recognized cryptographic attack. CBC (Cipher Block Chaining) is a mode of operation for block ciphers, and padding is a technique used to ensure that the length of the plaintext is a multiple of the block size. However, padding CBC attack is not a known attack.

Option C) Oracle Lockback - This option is incorrect. Oracle Lockback is not a recognized cryptographic attack. It seems to be a made-up term.

Option D) Padding Filter - This option is incorrect. Padding Filter is not a recognized cryptographic attack. It seems to be a made-up term.

The correct answer is A) Padding Oracle Attack. This option is correct because a padding oracle attack is a valid cryptographic attack where the attacker exploits padding errors in cryptographic protocols.

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