|lock PPTP||vpn_key L2TP / IPsec||vpn_lock OpenVPN (UDP / TCP)||Recommendation||fast_forward This protocol is very fast and therefore optimal for bypassing eg Geoblocking. However, this protocol does not offer the same security as OpenVPN||https This protocol is very secure, but slightly slower than OpenVPN. If possible, we always recommend the use of OpenVPN!||thumb_up Since the OpenVPN protocol offers the highest security and at the same time is very fast, we always recommend the use of this protocol! You can choose between UDP and TCP. UDP is for example best suited for streaming.|
|VPN-Encryption||128 - Bit||256 - Bit||256 - Bit|
|VPN SECURITY||Simplest encryption. However, this is no longer considered safe, as it can be cracked with little effort.||Same security as OpenVPN. Checks the integrity of data and encrypts them securely.||Highest encryption level. Authenticates data with digital certificates|
|VPN SPEED||Very fast, because it is only a pretty simple encryption||Requires more computing power because data is encrypted twice||Most powerful protocol. High speeds, even with high latency and long distance connections|
|Use for||Streaming, public Wi-Fi hotspots etc.||For transmission of security-relevant data, if no OpenVPN is available||Usable for all applications as it is very safe and fast|
|COMPATIBILITY||Native in most desktop, mobile, and tablet operating systems||Native in most desktop, mobile, and tablet operating systems||Supported by most operating systems for desktop computers, mobile devices and tablets with Android|
In general we recommend OpenVPN to you. The OpenVPN protocol uses 256-bit AES encryption on all popular devices such as Android, iOS, Linux, Mac OS X, and Windows. Using digital certificates, OpenVPN authenticates data on both sides using username and password. OpenVPN offers you, when comparing the protocols, not only very good security, but also a very fast speed.
L2TP / IPSec is the all-round alternative of our protocols and available for iOS, Linux, Mac OS X and Windows. L2TP / IPSec supports the block cipher AES with a key length of 128 bit, which is additionally combined with the point-to-point encryption from Microsoft. This combination is also very safe and works extremely reliable. In general, L2TP / IPSec provides a very good balance, since a middle ground of good security and acceptable speed is achieved. However, the connection does not quite reach the speed of PPTP. As an alternative to OpenVPN, however, L2TP is definitely recommended.
With PPTP, you should really only use SpyOFF if you need the best possible speed when streaming. The setup of PPTP may be very easy, but this encryption introduces security flaws. PPTP only supports point-to-point encryption from Microsoft, which makes for a very fast connection but creates problems if your router does not support generic routing encapsulation.
The Advanced Encryption Standard (AES) is currently the most used and the most secure encryption process. In 2001, AES replaced the DES encryption standard. Originally AES, with a block length of 256 bits, was the first encryption algorithm approved in the USA for government documents with the highest security rating. The reasons in favour of this encryption procedure are, among others, the security, the performance and its flexibility.
The underlying working involves substitutions, permutations and linear transformations. These take place on 16-byte data blocks and are repeated several times, although in each round an individual key is generated, which is incorporated into the calculation. By changing a single bit in the data block or key, a completely different cipher block is generated, which represents a considerable advantage over classic encryptions. In contrast to DES, with a key length of just 56 bits, AES uses key lengths of 128, 192 or 256 bits. To date, no procedure is known by which an attack against AES would be possible, which is why the Advanced Encryption Standard is preferred by banks, governments and high-security systems around the world.