👉 Cryptal is a term used in cryptography. It refers to an encryption method where the plaintext data is encrypted using a secret key and then decrypted using another secret key, resulting in a ciphertext that cannot be deciphered by the original sender or receiver without the decryption key. Cryptography is the branch of computer science that deals with the security of information, especially in electronic communication systems like email, telecommunication networks, and digital storage devices.