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Que.  AES is a round cipher based on the Rijndal Algorithm that uses a 128bit 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 
Answer:10, 12, 14
