WireGuard® has no known major vulnerabilities. OpenVPN has no known major vulnerabilities and is generally considered secure when implemented using a secure encryption algorithm and certificates for authentication. However Leaked NSA presentations indicate that IKE could be exploited in an unknown manner to decrypt IPSec traffic. IPSec has no known major vulnerabilities and is generally considered secure when implemented using a secure encryption algorithm and certificates for authentication.

Microsoft strongly recommends upgrading to IPSec where confidentiality is a concern. MSCHAP-v2 is vulnerable to dictionary attack and the RC4 algorithm is subject to a bit-flipping attack. The Microsoft implementation of PPTP has serious security vulnerabilities. Makes use of a UDP-based handshake and the key exchange uses perfect forward secrecy while avoiding both key-compromise impersonation and replay attacks. OpenSSL implements a large number of cryptographic algorithms such as 3DES, AES, RC5, Blowfish.Īs with IKEv2, IVPN implements AES with 256 bit keys.īuilt atop ChaCha20 for symmetric encryption ( RFC7539), Curve25519 for Elliptic-curve Diffie–Hellman (ECDH) anonymous key agreement, BLAKE2s for hashing ( RFC7693), SipHash24 for hashtable keys, and HKDF for key derivation ( RFC5869). OpenVPN uses the OpenSSL library to provide encryption. IVPN implements IKEv2 using AES with 256 bit keys. IKEv2 implements a large number of cryptographic algorithms including 3DES, AES, Blowfish, Camellia. MPPE implements the RSA RC4 encryption algorithm with a maximum of 128 bit session keys. The PPP payload is encrypted using Microsoft's Point-to-Point Encryption protocol ( MPPE). It has the potential to offer a simpler, more secure, more efficient, and easier to use VPN over existing technologies. WireGuard® is an extremely fast VPN protocol with very little overhead and state-of-the-art cryptography. Provides full confidentiality, authentication and integrity. Uses a custom security protocol and SSL/TLS for key exchange. Very popular however not based on standards (RFC).

Open-source VPN protocol developed by OpenVPN technologies. IPSec has become the defacto standard protocol for secure Internet communications, providing confidentiality, authentication and integrity. IKEv2 (Internet key exchange version 2) is part of the IPSec protocol suite. The PPTP specification does not actually describe encryption or authentication features and relies on the PPP protocol being tunneled to implement security functionality.

Wireguard vs openvpn