What is Sub Bytes
Explain what is meant by Sub Bytes.
Expert
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.
Suppose you worked for a US- based company that wanted to develop its own MIB for managing a product line. Where in the object identifier tree would it be registered? ( Hint: You’ll have to do some digging through RFCs or other documents to answer this question.)
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