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VPN App Development

 

VPN App Development with OpenVPN and WireGuard Protocol

  • 6 minutes Read
  • 22 Jan 2023
  • Aynun Nipa

Are you looking for a VPN development company to cater to your needs? Virtual Private Networks (VPNs) use security techniques to provide a secure Internet connection during online surfing. OpenVPN and WireGuard are two of the most famous security protocols currently available. Kolpolok Limited offers customized solutions based on OpenVPN or WireGuard protocols.


OpenVPN

OpenVPN is an open-source program with GPU licensed under the General Public License (GPL). OpenVPN was introduced in 2001 and has carved itself into an uncontested niche in security protocols. Since its inception, its security and performance have been of the highest quality. OpenVPN’s exceptional ability to traverse firewalls has made it a favorite among VPN providers since its inception.
OpenVPN has around 60 million downloads for providing many security layers to a configuration. In addition, the software makes it easy to traverse Network Address Translators (NATs). It also has high dependability and adaptability. It delivers speed to all consumers, notably cloud service providers and third-party system integrators.


WireGuard

WireGuard is a relatively new piece of software, launched in 2019, that poses a formidable challenge to the industry standard OpenVPN. WireGuard, despite its brief tenure in the business, had already made its impact when NordVPN adopted it and developed the NordLynx protocol. The goal of WireGuard was to build a VPN protocol that is simpler and quicker than those now available.
WireGuard is open-source software as well. According to VPN developer Donenfeld, there is a specialized solution for every facet of VPN security. Its protocol employs User Datagram Protocol (UDP) and includes 3700 lines of code.


Which way for your company: OpenVPN or WireGuard

OpenVPN and WireGuard both thrive in some areas while failing in others. Thus, what is appropriate for one user may not be suited for another.
To make a comparison that is as objective and fair as possible, we must be more specific. Below, we demonstrate the performance differences between OpenVPN and WireGuard in many major operational domains.


Speed
First, you should be aware that your basic internet rates will restrict the speed of your VPN connection. In addition, each VPN provider is set differently, so two providers using the same protocol may give speeds that vary greatly.


OpenVPN has always been considered “quick enough.” It wasn’t as rapid as PPTP or IPSec, but it provided acceptable speeds, with an average 30% drop. This implies that as long as your primary Internet connection is at least 40 Mbps, your VPN should be fast enough for all everyday tasks.


WireGuard sprung onto the market all at once, and significant services adopted it swiftly, touting its much faster speeds as a prominent selling feature. Although not entirely related to WireGuard (because network improvements and optimization are ongoing), IPVanish and CyberGhost more than doubled their average speed quickly after adopting WireGuard compatibility.
WireGuard was able to provide such high speeds for several reasons. First, its code base was far more simplified, with around 4,000 lines. In contrast, OpenVPN has about 70,000 lines of code after more than two decades of development. WireGuard supports multithreading, allowing it to handle data simultaneously using several CPU cores.


Security
OpenVPN may be far older than WireGuard, but it has not been penetrated for so long bolsters its security credentials. This protocol supports more encryption ciphers than its competitor, including WireGuard’s CHACHA20-POLY1305 cipher. In addition, it may operate on TCP or UDP, making it more versatile and, ideally, compatible with a greater variety of systems.


OpenVPN is very tough to audit because of the large amount of code that must be analyzed. In 2017, a professional audit found many critical vulnerabilities swiftly addressed. However, a lot may happen in half a decade, so more regular audits would be desirable. Supporting so many distinct ciphers and devices also increases the possibilities available to an attacker. However, as long as your implementation stays current, OpenVPN poses little danger.


WireGuard’s code was created to be understood by people, but it has also been inspected by professionals (most recently in 2020). Due to the continual nature of development, it is always feasible that vulnerabilities may emerge in the future.
This protocol is simple to integrate with various obfuscation tools and algorithms, which is another one of its benefits. This is significant because WireGuard maintains the user’s source IP address on the server by default. Still, VPN companies with WireGuard support often take precautions to avoid this, such as erasing all records after a session ends or developing alternative authentication mechanisms (such as NordVPN’s NordLynx double NAT scheme).


Ability to go undetected
VPN-blocking is becoming more prevalent. Detecting whether a user is connected to a VPN enables websites to guarantee that no one circumvents prohibitions, streaming services to limit material by location, and totalitarian regimes to prevent people from accessing otherwise inaccessible information online.


Immediately, OpenVPN has a modest edge in this situation. It may be set to utilize either TCP or UDP, two distinct data transmission protocols. UDP is speedier yet exceedingly simple to stop since all of its communication is sent over port 1194 by default. However, OpenVPN transmits TCP data on port 443, which is also used by HTTPS traffic. In summary, blocking this port prevents users from accessing sites that encrypt user communication (roughly 95 percent of all sites suggested by Google at the time of writing).
More determined groups may use deep packet inspection (DPI) to study your data packets, showing patterns that closely match OpenVPN traffic. VPNs must further disguise the traffic to counteract this, but only some providers do. Nevertheless, this procedure is not a failsafe.


WireGuard was not intended to conceal user traffic to this extent and only supports UDP. This implies that it is easy to identify an essential, solo WireGuard connection. Due to WireGuard’s extensibility, however, most VPN companies have implemented their obfuscation algorithms on top. The effectiveness of these varies, but we have seen systems with WireGuard support that function in China, indicating that the protocol is not a limiting issue in this respect.


Level of support
OpenVPN is already accessible in most consumer VPNs and is quite simple to install since all major router firmware supports it manually. Notably, most trustworthy VPN companies let customers obtain OpenVPN configuration files, so you do not need to develop your own VPN to secure your home network.

WireGuard is now uncommon, but its popularity continues to rise. Nonetheless, there are two significant concerns about support. Very few VPNs give the configuration files necessary to utilize this protocol on a router. Second, even if config files were accessible, routers that accept ordinary WireGuard traffic may not be compatible with proprietary protocols such as NordLynx.


Conclusion
Kolpolok Limited is the only company in Bangladesh that will offer you the chance to weigh the advantages of different protocols and design and develop a VPN app for your business. Contact us today if you need to develop a VPN app using any of these protocols.

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