The Secret Behind Fast Digital Encryption

Symmetric encryption uses the same key for locking and unlocking data. While sharing this secret key is risky, it is significantly faster and more efficient than other methods for protecting large volumes of data.

Because symmetric algorithms require less computational power, they serve as the workhorses for protecting most of the internet traffic you see daily. Think of it like a single physical key that both a sender and receiver must possess to open a lock. Because this is so efficient, tech systems often use more complex asymmetric methods just to safely trade this one master key. Once the secret is shared, the high-speed symmetric system takes over to handle the heavy lifting of encryption.