1. AES uses a ____________ bit block size and a key size of __________ bits. a) 128; 128 or 256 b) 64; 128 or 192 c) 256; 128, 192, or 256 d) 128; 128, 192, or 256 AnswerAnswer: d [Reason:] It uses a 128-bit block size and a key size of 128, 192, or 256…