Question

11. What are substitution techniques? Explain any one with the help of an example.

Answer 1

Substitution Techniques of single letters separately—simple substitution—can be demonstrated by writing out the alphabet in some order to represent the substitution. This is termed a substitution alphabet. The cipher alphabet may be shifted or reversed (creating the Caesar and Atbash ciphers, respectively) or scrambled in a more complex fashion, in which case it is called a mixed alphabet or deranged alphabet. For Example :- Ceaser Cipher.