Define DES
Write down the abbreviation of DES? Briefly define it.
Expert
The abbreviation of DES is Data Encryption Standard, which is an encryption block cipher stated and endorsed by the U.S. government in the year 1977 as an official standard; the details can be recognized in the latest official FIPS (or Federal Information Processing Standards) publication regarding DES. This was initially developed at IBM. DES has been broadly learned as its publication is the most familiar and broadly used cryptosystem in the world.
The DES algorithm derives the sixteen 48-bit subkeys, for utilization in each of 16 rounds, from 56-bit secret key supplied by the user. This is fascinating to consider the effect of employing a 768-bit key (divided to sixteen 48-bit subkeys) in place of sixteen assoc
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