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how many rounds does the aes-192 perform?

AES-192 performs 12 rounds of encryption and decryption processing.

Quick Scoop

Here’s the essential breakdown, with a bit of context so it sticks:

  • AES always works on 128-bit data blocks, but the key size changes the number of rounds.
  • For 192-bit keys (what we call AES-192), the standard fixes the number of rounds at 12.
  • For comparison:
    • AES-128 → 10 rounds.
* AES-192 → 12 rounds.
* AES-256 → 14 rounds.

Each round is a repetition of AES’s core transformations (SubBytes, ShiftRows, MixColumns, AddRoundKey), with the last round omitting MixColumns, but it still counts toward the total of 12 for AES-192.

So if you see a multiple‑choice question asking “how many rounds does the AES‑192 perform?”, the correct choice is 12.

Bottom note: Information gathered from public forums or data available on the internet and portrayed here.