Network & Cyber Security Lecture: Symmetric key Encryption (Private Key) Key Based Cryptography

In this methodology, the encryption algorithm combines with a key and plaintext to create the ciphertext. There are two types of keys 1) Symmetric Key (Private Key) 2) Asymmetric Key (Public Ky) Symmetric Key both encryption & decryption operations use the same key with the sender and receiver Symmetric Key encryption algorithm uses the small length key and can quickly encrypt large quantities of data