When encrypting with the Triple DES Encryption Algorithm (TDEA) the second cycle uses DES decryption. Why does it use DES decryption, not DES encryption?

What is the best definition of judgment? 

Counter mode encryption / decryption is relatively fast because …  Select all of the correct answers: 

What was a significant outcome of the Birmingham Campaign organized by the SCLC in 1963?

How did the United States officially respond to the blockade of West Berlin?

What was a significant outcome of the Birmingham Campaign organized by the SCLC in 1963?

How did the United States officially respond to the blockade of West Berlin?

What was the significance of the U.S.-Soviet negotiations following the discovery of missile launch sites in Cuba?

What was the consequence of the limited number of television channels in the 1950s?

What was the outcome of the trial against Julius and Ethel Rosenberg?