Multiple choice technology security

AES uses which of the following mechanism for encyption

  1. Round Key

  2. Variable Key

  3. Plain Key

  4. Public Key
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A Correct answer
Explanation

AES uses a Round Key mechanism where a single key is expanded into multiple round keys through key expansion, then each round uses a different round key derived from the original key. This is not variable key (different keys per session) or public key (asymmetric).

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