In collaboration with colleagues from Opole University in Poland, researchers at Horst Görtz Institute for IT Security (HGI) at Ruhr-Universität Bochum (RUB) have demonstrated that the Internet protocol "IPsec" is vulnerable to attacks.

The research results are published by Dennis Felsch, Martin Grothe and Prof Dr Jörg Schwenk from the Chair for Network and Data Security at RUB as well as Adam Czubak and Marcin Szymanek from Opole University on 16 August 2018 at the Usenix Security Symposium as well as on their blog.

As an enhancement of Internet protocol (IP), "IPsec" has been developed to ensure cryptographically secure communication via publicly accessible resp.

insecure networks, such as the Internet, by using encryption and authentication mechanisms.

This type of communication is often relevant for enterprises whose employees operate from decentralised workplaces - for example as sales reps or from home office - and have to access company resources.

Automated key management and authentication, for example via passwords or digital signatures, can be conducted via the Internet Key Exchange protocol "IKEv1".

The text above is a summary, you can read full article here.