COMPUTER FUNDAMENTALS

Detailed explanation-1: -In cryptography, a Caesar cipher, also known as Caesar’s cipher, the shift cipher, Caesar’s code or Caesar shift, is one of the simplest and most widely known encryption techniques.

Detailed explanation-2: -The Shift Cipher. Also known as the Caesar cipher, the shift cipher is one that anyone can readily understand and remember for decoding. It is a form of the substitution cipher. By shifting the alphabet a few positions in either direction, a simple sentence can become unreadable to casual inspection.

Detailed explanation-3: -The Caesar Cipher is a type of shift cipher. Shift Ciphers work by using the modulo operator to encrypt and decrypt messages. The Shift Cipher has a key K, which is an integer from 0 to 25.

Detailed explanation-4: -A Caesar cipher is a simple method of encoding messages. Caesar ciphers use a substitution method where letters in the alphabet are shifted by some fixed number of spaces to yield an encoding alphabet. A Caesar cipher with a shift of 1 would encode an A as a B, an M as an N, and a Z as an A, and so on.

Detailed explanation-5: -Such a scheme is called a Vignère cipher4.14, which was first used around 1600, and was popularly believed to be unbreakable. This cipher is called a polyalphabetic substitution cipher, because several different substitutions are made depending on the position of the character within the text.