Data encryption involves the use of algorithms to transform readable data (plaintext) into an unreadable format (ciphertext). Two main types of encryption are used:
Symmetric Encryption: Uses the same key for both encryption and decryption. It is fast and suitable for encrypting large datasets but requires secure key management. Asymmetric Encryption: Utilizes a pair of keys—a public key for encryption and a private key for decryption. It offers enhanced security but is computationally intensive.