Question

Which cipher is commonly used in network-based symmetric cryptographic applications?

Answer 1

polyalphabetic chipers is commonly used in network based symmetric cryptographic application .

Answer 2

Polyalphabetic chipers  is commonly used in network-based symmetric cryptographic applications.

Explanation:

• A polyalphabetic cypher is any substitution cypher that employs numerous substitution alphabets.
• Though it is a simplified particular case, the Vigenère cypher is arguably the most well-known example of a polyalphabetic encryption.
• The Hill cypher is regarded as the first polygraphic encryption in which it is possible to operate on more than three symbols at the same time. In the 15th century, the Italian poet Leon Battista Alberti devised the first polyalphabetic cypher.

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