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OpenVPN
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As requested on the mailing list and in trac ticket #410, add an option to disable 'traditional' Diffie Hellman key exchange. People want to be able to create ecdh-only configurations. This patch also disables RSA key exchange by default for OpenSSL builds, to prevent that people who set "--dh none" but have an OpenSSL version that doesn't support ECDH end up with a less secure connection. Note that users that specify their own --tls-cipher override these defaults and thus can still use whatever OpenSSL supports (and might thus end up with less secure connections). PolarSSL does not allow to easily disable RSA key exchange during runtime, but its default compile options do not include RSA key exchange based cipher suites. Finally update the manpage to reflect the new behaviour, and while touching it change the text to motivate users towards a more secure configuration. v2 - disable RSA key exchange by default Signed-off-by: Steffan Karger <steffan@karger.me> Acked-by: Arne Schwabe <arne@rfc2549.org> Message-Id: <1420141569-11773-1-git-send-email-steffan@karger.me> URL: http://article.gmane.org/gmane.network.openvpn.devel/9376 Signed-off-by: Gert Doering <gert@greenie.muc.de> |
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| include | ||
| m4 | ||
| sample | ||
| src | ||
| tests | ||
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| AUTHORS | ||
| ChangeLog | ||
| compat.m4 | ||
| config-msvc-version.h.in | ||
| config-msvc.h | ||
| configure.ac | ||
| COPYING | ||
| COPYRIGHT.GPL | ||
| INSTALL | ||
| INSTALL-win32.txt | ||
| Makefile.am | ||
| msvc-build.bat | ||
| msvc-dev.bat | ||
| msvc-env.bat | ||
| NEWS | ||
| openvpn.sln | ||
| PORTS | ||
| README | ||
| README.ec | ||
| README.IPv6 | ||
| README.polarssl | ||
| TODO.IPv6 | ||
| version.m4 | ||
| version.sh.in | ||
OpenVPN -- A Secure tunneling daemon Copyright (C) 2002-2010 OpenVPN Technologies, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. ************************************************************************* For the latest version of OpenVPN, go to: http://openvpn.net/ To Build and Install, ./configure make make install or see the file INSTALL for more info. ************************************************************************* For detailed information on OpenVPN, including examples, see the man page http://openvpn.net/man.html For a sample VPN configuration, see http://openvpn.net/howto.html For a description of OpenVPN's underlying protocol, see the file ssl.h included in the source distribution. ************************************************************************* Other Files & Directories: * INSTALL-win32.txt -- installation instructions for Windows * configure.ac -- script to rebuild our configure script and makefile. * sample/sample-scripts/verify-cn A sample perl script which can be used with OpenVPN's --tls-verify option to provide a customized authentication test on embedded X509 certificate fields. * sample/sample-keys/ Sample RSA keys and certificates. DON'T USE THESE FILES FOR ANYTHING OTHER THAN TESTING BECAUSE THEY ARE TOTALLY INSECURE. * sample/sample-config-files/ A collection of OpenVPN config files and scripts from the HOWTO at http://openvpn.net/howto.html ************************************************************************* Note that easy-rsa and tap-windows are now maintained in their own subprojects. Their source code is available here: https://github.com/OpenVPN/easy-rsa https://github.com/OpenVPN/tap-windows The old cross-compilation environment (domake-win) and the Python-based buildsystem have been replaced with openvpn-build: https://github.com/OpenVPN/openvpn-build See the INSTALL file for usage information.