Encrypt and Decrypt Data Using Keys

Encryption converts data into an unreadable format using keys. There are two main types: symmetric (one key) and asymmetric (key pair). Symmetric encryption is faster but less secure, while asymmetric is slower but more secure. Keys are crucial for both types and must be managed carefully. Encryption is used for secure communication, data storage, digital signatures, and authentication. Choosing the right algorithm, key length, and management practices is essential for strong encryption.

"Fortress-level protection."