AES is a round cipher based on the Rijndal Algorithm that uses a 128-bit block of data. AES has three different configurations. ______ rounds with a key size of 128 bits, ______ rounds with a key size of 192 bits and ______ rounds with a key size of 256 bits. a. 5, 7, 15 b. 10, 12, 14 c. 5, 6, 7 d. 20, 12, 14

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