Onion Routing

What Does Onion Routing Mean?

Onion routing is a method by which network packets can be transmitted anonymously over the Internet or a network.

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It was first conceived by the U.S. Navy to hide the origin of Internet Protocol (IP) packets as they traveled over the Internet. However, it protects and hides both the sender and receiver of the data packet.

Techopedia Explains Onion Routing

In onion routing, each layer serves as encapsulation, revealing information when the layer is extracted.

In practical implementation, onion routing consists of a series of onion routers connected through a proxy. The application intending to send a network packet transmits it to the onion routing proxy, which creates an anonymous connection using different onion routers en route to the destination node.

The first onion router encrypts the message and sends it to the next router in the configured path. The receiving onion router decrypts the message using its private key, reveals the next destination onion router, encrypts it again and sends it to the next onion router.

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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…