What is Mix Columns
Explain the term Mix Columns.
Expert
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.
Specify the reasons for using the PGP?
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Specify any cryptographic keys which are used in PGP?
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Explain the primitive operations which are used in the Blowfish?
Explain the term Caesar cipher.
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Explain the term power analysis?
List the potential situations for confidentiality attacks for the user workstations in the typical business environment.
State the MIME content type &explain?
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