What is Sub Bytes
Explain what is meant by Sub Bytes.
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Sub byte uses the S-box in order to perform the byte-by-byte substitution of block. The left most 4 bits of byte are used as the row value and rightmost 4 bits are used as the column value. These row and column values serve as the indexes in the S-box to select a unique 8- bit value.
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Specify the key algorithms which are used in the S/MIME?
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Any questions that are completed should be explained and given a general reason to why that strategy was used. Address allocation is already done and flow mapping is already completed. I just need Q2, Q4, Q5, Q6, Q7, Q8, Q9 answered.
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