one of the oldest known encryption methods

Caesar cipher is one of the oldest known encryption methods.

an encryption algorithm

Caesar Cipher is an encryption algorithm in which each alphabet present in plain text is replaced by alphabet some fixed number of positions down to positions .

a substitution cipher which works by shifting each letter of a message (plaintext) by a fixed number of positions in the alphabet

The Caesar Cipher is a substitution cipher which works by shifting each letter of a message (plaintext) by a fixed number of positions in the alphabet.

an early instance of a substitution cipher, in which each letter is replaced with another one a fixed number of places down the alphabet

The Caesar cipher, named in honor of Caesar, the Roman Emperor Julius Caesar, is an early instance of a substitution cipher, in which each letter is replaced with another one a fixed number of places down the alphabet (e.g., “E” is transformed into “Y”).

This substitution cipher

This substitution cipher, known as the Caesar cipher, is perhaps the most mentioned historic cipher (an algorithm used for encryption or decryption) in academic literature.

shift cipher

A Caesar cipher (shift cipher) is one of the simplest encryption methods.

a type of substitution cipher in which each letter is replaced by another letter that is a set number of places away in the alphabet

The Caesar Cipher is a type of substitution cipher in which each letter is replaced by another letter that is a set number of places away in the alphabet.

a very simple encryption method

Caesar cipher is a very simple encryption method and is easily cracked if one studies the frequency of repeating letters.

a type of substitution cipher in which each letter of the alphabet is swap by a letter a certain distance away from that letter

Caesar cipher is a type of substitution cipher in which each letter of the alphabet is swap by a letter a certain distance away from that letter.

a substitution cipher that shifts letters in a message to make a message unreadable if intercepted

The Caesar Cipher, used by Julius Caesar around 58 BC, is a substitution cipher that shifts letters in a message to make a message unreadable if intercepted.

a substitution cipher, where each letter in the text is replaced by a corresponding letter, based on an alphabetical offset (shift)

A Caesar cipher is a substitution cipher, where each letter in the text is replaced by a corresponding letter, based on an alphabetical offset (shift).

one of the oldest substitution ciphers, used by the Roman leader Julius Caesar to encrypt military messages ( wikipedia article)

The Caesar cipher is one of the oldest substitution ciphers, used by the Roman leader Julius Caesar to encrypt military messages ( wikipedia article).

an example of a substitution cipher, in which each letter is substituted with a different letter

Caesar's cipher is an example of a substitution cipher, in which each letter is substituted with a different letter.

a monoalphabetic substitution cipher, where each letter is replaced by another letter located a little further in the alphabet

The Caesar cipher (or Caesar code) is a monoalphabetic substitution cipher, where each letter is replaced by another letter located a little further in the alphabet (therefore shifted but always the same for given cipher message).

the simplest type of substitution cipher with a mono-alphabetic encryption code wherein each letter of plain-text is replaced by another letter in creating the cipher-text

Caesar Cipher is the simplest type of substitution cipher with a mono-alphabetic encryption code wherein each letter of plain-text is replaced by another letter in creating the cipher-text.

a type of substitution cipher that is named after Julius Caesar, who is said to have used who to encrypt messages sent to Julius Caesar's officials

The Caesar Cipher is a type of substitution cipher that is named after Julius Caesar, who is said to have used who to encrypt messages sent to Julius Caesar's officials.

an example of a mono-alphabetic substitution cipher, which means that each letter of the original message is replaced with a unique letter in the encrypted message

The Caesar cipher is an example of a mono-alphabetic substitution cipher, which means that each letter of the original message is replaced with a unique letter in the encrypted message.

to a subset of encryption schemes called substitution ciphers – a substitution cipher is so called because each letter comprising the message gets substituted, which eventually helps in obscuring the meaning of the entire message

The Caesar cipher belongs to a subset of encryption schemes called substitution ciphers – a substitution cipher is so called because each letter comprising the message gets substituted, which eventually helps in obscuring the meaning of the entire message.

just a particular case of such fixed-substitution cipher where we want a key that is even smaller

The caesar cipher is just a particular case of such fixed-substitution cipher where we want a key that is even smaller: we just "rotate" the alphabet and remember by how much we rotate the alphabet , and this is typically done by remembering which letter the letter "a" is replaced by.

Caesar encryption , also known as a Caesar cipher,

Caesar encryption, also known as a Caesar cipher, is a type of substitution cipher that operates by shifting the letters of the alphabet by a fixed number of positions.