Caesar Cipher

Known also as a shift cipher, Caesar cipher is one of the simplest and best-known ciphers. Letters have their meanings shifted by a predetermined amount in shift-ciphers.

Today, ROT13 cipher is commonly used because it shifts the letters by 13 places. In other words, A = N, B = O and so on.

Input text to encode or decode here:
Result


What is a Caesar Cipher and Why Should I Ever Want to Use it?

The Caesar cipher is a type of simple substitution cipher. It is named after Julius Caesar, who allegedly used it to encrypt his private correspondence, though there are no first-hand accounts of this.

Many people don't know what a Caesar Cipher is and even if they do know what it is, they don't actually use it. There are many reasons why you should want to use this type of cryptographic encoding method - there are hidden messages in some languages that are displayed off by using the Caesar cipher.

It's also good for keyword encryption because you can create different words without having to worry about any guessing games happening with your password or login information!


How Caesar Ciphers Work

The Caesar cipher is a simple encryption algorithm in which a letter in the message is replaced by a letter a fixed number of places away.

The Caesar cipher is often used to encrypt data that was sent over the internet or when you have to send sensitive information that needs protection from being viewed or stolen by an unauthorized user.


What is the History of the Caesar Cipher?

The Caesar cipher is a type of substitution cipher, a Caesar shift key consists of a number of characters that can be combined in a single word or phrase.

The Caesar Cipher has been around for centuries and was derived from the simple polyalphabetic substitution ciphers. In the simplest case, the plaintext would be encoded using one-to-one mapping on each letter to an equivalent letter in the key. For example:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

P Q R S T U V W X Y Z A B C D E F G H I J K L M N O



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