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Technology

What is onion routing and should you use it

Several technologies are available that allow the user to protect their privacy online. Perhaps VPN services provide an excellent example of this. However, a large number of these services do not provide a sufficient level of security, and some of them log the user’s Internet traffic while using the service, thus losing their usefulness. Which contributed to the emergence of onion guidance.

Onion routing offers all the advantages that VPN services offer. But on the other hand it protects the user from its shortcomings at the same time. Onion routing is known as a secure way to surf the Internet due to its unique encryption techniques.

Onion routing is so called because it encodes content based on a large number of overlapping layers, just like the layers of an onion plant.

Read also: What is incognito mode and does it really protect your data?

When this type of routing is used to send a message or connect to the Internet, its content travels between a large number of nodes, the content is encrypted once connected based on your device itself, and decryption can only be done based on the end node.

After the data goes through all these stages, it is decrypted in the last node as mentioned above, and then it is sent normally to the recipient. Thus, no person or entity can know where the transmission is or who is responsible for it, because the data has traveled a long way between those nodes before it goes out to the recipient.

Read also: 4 Ways to Hide Your Digital Footprint on the Internet

What is onion routing?

This technology is known to be quite complex, but it has been available to the average user for many years. And that is through the Tor service, which comes in the form of a separate browser, or in the form of an application similar to VPN applications.

Below, to illustrate the above, we review the stages that data goes through when using onion routing:

  1. Once you turn on onion routing on your device, the content that passes through it is encrypted
  2. Your PC, or smartphone, sends the content encrypted to the first node, which is known as N1
  3. Node N1 connects to Node N2, which adds an extra layer of data protection
  4. The same command is repeated with node N3 and the command continues to repeat
  5. Once the content reaches the receiving end, the data passes through the last node, which is the EN β€” End Node. This node decrypts the content
  6. In the case of messaging applications, when a reply to a message is received, the reply goes through the same stages that your message went through until it reaches you

Read also: 5 Ways You Can Be Tracked In Incognito Mode

Onion guidance can be used on a Windows PC through the open source AdvOR program, and the TOR browser can be relied on on all other platforms.

Should it be used?

There is nothing to prevent the use of onion routing, whether through TOR applications or others, but because the encryption is at a high level, the use of onion routing negatively affects internet speed in many cases.

Some VPN services use similar methods, but on the one hand they are paid services, and on the one hand they remain suspect.

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