Question11Max. score: 2.00Which one of the following is not a possible key length for the Advance Encryption Standard Rijndael cipher?56128192256
Question
Question11Max. score: 2.00Which one of the following is not a possible key length for the Advance Encryption Standard Rijndael cipher?56128192256
Solution
To determine which one of the given options is not a possible key length for the Advanced Encryption Standard (AES) Rijndael cipher, we need to understand the valid key lengths for this cipher.
The AES Rijndael cipher supports three key lengths: 128 bits, 192 bits, and 256 bits.
Now, let's compare the given options with the valid key lengths:
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56: This is not a valid key length for the AES Rijndael cipher. It is shorter than the minimum key length of 128 bits.
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128: This is a valid key length for the AES Rijndael cipher.
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192: This is a valid key length for the AES Rijndael cipher.
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256: This is a valid key length for the AES Rijndael cipher.
Based on the comparison, we can conclude that the key length of 56 is not a possible key length for the AES Rijndael cipher.
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