| Algorithm |
A sequence of steps or instructions used to solve a problem or perform a task. |
| Cipher |
A method of encoding information so that it can only be accessed by authorized parties. |
| Ciphertext |
The encrypted message or data that is the result of an encryption process. |
| Cryptanalysis |
The process of analyzing encrypted information to decipher the original message or data. |
| Cryptography |
The practice of securing communication from unauthorized access. |
| Decryption |
The process of converting ciphertext back into plaintext using a cryptographic algorithm and a key. |
| Encryption |
The process of converting plaintext into ciphertext using a cryptographic algorithm and a key. |
| Key |
A secret value used to encrypt or decrypt information. |
| Key Length |
The length of the key used in a cipher, typically measured in bits. |
| Monoalphabetic Cipher |
A substitution cipher in which each letter is replaced with a single, fixed symbol throughout the ciphertext. |
| Pigpen Cypher |
Also known as the Masonic Cipher, it is a substitution cipher used in cryptography that replaces letters with symbols and shapes. |
| Plaintext |
The original message or data that is to be encrypted. |
| Polyalphabetic Cipher |
A substitution cipher in which the symbol used to replace a letter varies depending on its position in the plaintext. |
| Repetition |
The practice of using the same key repeatedly in a cipher. |
| Substitution Cipher |
A cipher that replaces each letter in the plaintext with a different letter, symbol, or number in the ciphertext. |
| Symbol |
A graphical representation used to represent something else, such as a letter or number in a cipher. |
| Symbol Set |
The set of symbols used in a cipher to represent plaintext letters. |
