What is Mix Columns
Explain the term Mix Columns.
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Mix Column refers to the substitution which makes use of the arithmetic over GF (28).Mix Column operates over each column individually. Every byte of the column is mapped into the new value which is a function of all four bytes within the column. The Mix Column Transformation linked with shift row transformation assures that after the few rounds, all the output bits depend upon all the input bits.
Explain the term Shift Rows.
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