Caesar Cipher Encryption
Decryption Shift Value
Alphabet Substitution Cipher
Cipher Plaintext

 

The process of converting plaintext into coded language to ensure its confidentiality. A type of substitution cipher in which each letter in the plaintext is shifted a certain number of places down the alphabet.
The number of places by which each letter in the plaintext is shifted in the Caesar Cipher. The process of converting coded or encrypted text or data back into plaintext.
A cipher in which each letter in the plaintext is replaced by another letter or symbol according to a predetermined pattern. A set of letters or symbols in a fixed order used to represent the basic sounds of a language.
The original message before it is encrypted or coded. A secret or disguised way of writing; a code.

 

Ciphertext Modulus Operator
Brute-Force Attack Key
Frequency Analysis Polyalphabetic Cipher
Vigenere Cipher Cryptanalysis

 

A mathematical operator used to perform division with remainder, often denoted by the percent symbol (%). The encoded or coded message produced by a cipher.
In cryptography, a secret code or number used to encrypt or decrypt a message. An attack on a cipher by trying every possible key until the correct one is found.
A cipher that uses multiple alphabets to encrypt a message. The study of the frequency and distribution of letters or symbols in a text to help break a cipher.
The study of cryptographic systems in order to find weaknesses and break codes. A polyalphabetic cipher that uses a keyword consisting of a repeating pattern of letters to encrypt a message.

 

Monoalphabetic Cipher Transposition Cipher
Rail Fence Cipher

 

A cipher that rearranges the letters or symbols of a message without changing them. A cipher that uses a single alphabet to encrypt a message.
A type of transposition cipher in which the plaintext is written diagonally on a criss-cross pattern.