Dutch Government Officially Trusts OpenVPN-NL
First time accepted submitter joost.bijl writes "Yesterday the Dutch government took a step to further improve the adoption of Open Source in its ranks. It has officialy approved a modified version of the open source VPN software OpenVPN for use on the governmental level 'Departementaal Vertrouwelijk' (Restricted). The release is called OpenVPN-NL and is fully open-source and available for use. The software has undergone a security evaluation by the Dutch government's national communications security agency (NLNCSA). The major change is the removal of OpenSSL as the cryptographic core of OpenVPN-NL. Instead, the Dutch government opted to include the smaller, better readable and documented open source library PolarSSL to provide the cryptographic and SSL/TLS functionality. The Dutch IT Security company Fox-IT worked together with both OpenVPN and PolarSSL communities and modified the stock software to support the government evaluation process. In total 8000 lines of code and 4000 lines of documentation were checked in to the OpenVPN trunk."
This is very good news. OpenVPN is probably the easiest secure VPN software I've ever worked with. I've been running it as the link for our multi-site network for over two years now, and it's also the VPN software our road warriors are using. Simple to configure, and damnit but it just works. After years of trying to get all these weird implementations of IPSec to co-operate with each other, OpenVPN is just a marvel, fast and lightweight.
The world's burning. Moped Jesus spotted on I50. Details at 11.
That's true, though openssl has had the ability to add empty fragments to avoid the chosen plain text attack I suspect you're referring to for many years. What's strange is that the chosen solution (polarSSL) doesn't seem to have support for OCSP which is the main way to quickly revoke bad keys - particularly important in the light of the recent diginotar breach.
i don't know about gnutls's maturity,
but polarssl does not seem to support renegotiation, that to me indicates it's a pretty bad choice for a vpn which you expect to be up 100% of the time and pass significant traffic. looks like the dutchies just wanted SOMETHING they had made locally in an approved software, security be damned!
Differences in code between OpenVPN and OpenVPN-NL. (credits: Palatinux) openvpn_nl-v2.1.4-diffpatch.txt
About why the chose to use PolarSSL:
Among the notable differences between OpenVPN and OpenVPN-NL is the cryptographic library. Correct SSL functionality is essential for the protection that OpenVPN offers. OpenSSL is a large and complex library. PolarSSL is a compact and modular library, which is small enough for a fairly in-depth evaluation. Therefore, in the OpenVPN-NL package, it has been chosen to exchange PolarSSL for OpenSSL. This change does not change functionality; the two libraries (OpenSSL and PolarSSL) are mutually compatible.
source: background OpenVPN
But as being said in another comment, someone now working for Fox-IT was involved in PolarSSL. Extra functionality and documentation was added to PolarSSL by Fox-IT according to a comment on a tech-site (tweakers.net) by someone who claims to be the maintainer of PolarSSL.