symmetric cryptography

Symmetric cryptography is a method of securing information by using the same secret key to both lock (encrypt) and unlock (decrypt) data. Imagine having a single key to lock and unlock a safe; both sender and receiver must share this key beforehand. It’s efficient and fast, making it ideal for encrypting large amounts of data. However, its security relies on keeping the key secret. If someone else gains access to the key, they can access the protected information. Common symmetric algorithms include AES and DES.