One difference the Obfsproxy encryption has from other methods is that it uses a handshake that has no recognizable byte patterns. It works in virtually the same way as the other obfuscation methods - by wrapping VPN traffic in a protective layer and changing its appearance to HTTP traffic. Obfsproxy is a project that goes parallel with the Tor project and was designed to help bypass blocks on the Tor browser. It may help VPN traffic bypass anti-VPN technologies, but this isn’t completely guaranteed. However, the scramble method of VPN obfuscation is a bit controversial, as the XOR cipher itself is relatively simple, and therefore not uncrackable.
#OBFUSCATION VPN IPVANISH CODE#
OpenVPN Scramble, also known as the XOR obfuscation, uses the XOR additive cipher to encrypt the OpenVPN signature in the data packet, making it into a bunch of random code that has no meaning and thus goes unidentified by the DPI. Neither DPI nor firewalls are able to see through it. The SOCKS5 proxy is similar to the SSH tunnel in the way that it makes VPN encrypted traffic look like HTTPS. Shadowsocks is an open source client of the SOCKS5 proxy created by a Chinese programmer to battle the internet restrictions and censorship in China. The same applies to using SSH tunnel for encryption, except this protocol is not nearly as popular as SSL and is mainly used in business. Then it’s able to pass as regular HTTPS data, as it also uses SSL encryption. In other words, your VPN encryption gets also encrypted, and thus hidden out of sight. The OpenVPN data in the data packet gets sort of wrapped in the SSL encryption like a protective layer of armor that the DPI cannot get through. The methods of VPN obfuscation employed by VPN providers slightly differ from one another, but they’re essentially doing the same thing - encrypting, exchanging, and hiding the VPN metadata in data packets. Thus, the firewall, not seeing any suspicious metadata, lets the packet pass through a firewall like regular traffic. When the obfuscation method is applied, the VPN signature and any traces of it “disappear” from the data packet. So when a VPN encrypted data packet gets inspected by DPI and it detects the VPN metadata, firewalls and anti-VPN technologies deny you access to websites, which translates to “access denied” or “proxy error” on your screen. This is where the information about a VPN protocol can be seen. A data packet, aside from the raw information, includes metadata about what kind of protocol is used to deliver the data. How does VPN obfuscation work?īefore we get into how VPN obfuscation works, there are a few things you need to know to understand the process better.Īny information traveling through the internet pathways does so in data packets. VPN obfuscation is the solution to this problem. That way, you won’t be able to access websites no matter if you use a VPN or not. By using DPI, interested parties such as streaming websites, governments, or ISPs employ blocking technologies to counter VPN usage.
When a VPN is used, the contents of the data packets become encrypted, but the presence of a VPN does not. ISPs and governments use Deep Packet Inspection (DPI) to see all of your online traffic data and thus monitor what you can access.
In turn, the VPN encrypted traffic will be able to bypass VPN blocks and firewalls. The raw data will stay encrypted, but the DPI won’t be able detect VPN usage, unless the data packet is inspected manually. VPN obfuscation makes VPN traffic look like regular internet traffic by hiding traces of information about a VPN protocol in the data packets.
#OBFUSCATION VPN IPVANISH HOW TO#
In this article, I’ll explain how obfuscated servers work and how to use them, as well as introduce you to the best VPNs that offer this feature.
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