Question

Multiple Choice

1.

A. The Vernam cipher invented in 1917 by Major Joseph Mauborgne __________________________________.

  was broken before the end of WWI

   is a perfect encryption scheme

   is asymmetric

B. Gilbert Gifford, in the Mary Queen of Scott's story, was all of these things EXCEPT:

a spy

a linguist

a Catholic

C. The Kerckhoffs' Principle is the __________________ notion that security is best achieved by keeping the ______________ secret.

intuitive, design

   unintuitive, design

   unintuitive, key

Answer 1

1.
A.
Answer)
The Vernam cipher invented in 1917 by Major Joseph Mauborgne L
is a perfect encryption scheme

The cipher is the symmetric cipher where the random numbers are generated to encrypt messages, using the same key to decrypt the messages.

B.
Answer)
Gilbert Gifford, in the Mary Queen of Scott's story, was all of these things EXCEPT:
a linguist

The linguist is the person who studies linguistics or is skilled in many foreign languages. Gilbert was a double agent and thus a spy and was also a Catholic.

C.
Answer)
The Kerckhoffs' Principle is the - unintuitive - notion that security is best achieved by keeping the - key - secret.
unintuitive, key

The Kerckhoffs' principle states that the cryptographic system can be secure even if everything about that system is public, but the key is still kept a secret.

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