[Openvpn-devel] Using OpenVPN with non-default cryptoalgorithms

2007-12-10 Thread Victor Wagner
th ephemeral DH key exchange are enabled. But there are lot of other ciphersuites which do not require DH parameters at all (or require some other parameters such as EECDH ciphersuites). Can somebody enlighten me - why these decisions were made? Regards, Victor Wagner.

[Openvpn-devel] Solaris questions

2009-04-24 Thread Victor Wagner
Hi, all I've tried to build Solaris OpenVPN packages for various versions of solaris and encountered some problems, probably related more with TUN driver, than with openvpn itself I'm using openvpn 2.1rc15 and tun driver 1.1 as recommended on openvpn.net site. 1. Openvpn is unable to close tun i

Re: [Openvpn-devel] Solaris questions

2009-04-24 Thread Victor Wagner
On 2009.04.24 at 07:47:54 -0700, Jonathan Petersson wrote: > Hi Victor, > > I haven't tried this myself and this guide is mainly for OpenSolaris, but: > http://blogs.reucon.com/srt/2008/12/17/installing_openvpn_on_opensolaris_2008_11.html There is nothing particulary interesting here, except th

Re: [Openvpn-devel] Solaris questions

2009-04-26 Thread Victor Wagner
On 2009.04.25 at 16:31:14 +0900, Kazuyoshi Aizawa wrote: > Hi Victor, > > Could you please post the script once you have built drivers for your package? > So that I can update my script as well. > I've wanted to make script to be capable to build drivers on various > platforms. But I don't have e

Re: [Openvpn-devel] Solaris questions

2009-04-26 Thread Victor Wagner
On 2009.04.26 at 18:39:46 +0400, Victor Wagner wrote: > Of course. See attached patch (configure.patch). Unfortunately, I've send untested patch. I've checked configure invocation, but was too haste to check whether produced Makefile would work. Now there is tested patch. Only thi

Re: [Openvpn-devel] Unable to use -OFB or -CFB ciphers in OpenVPN

2009-05-28 Thread Victor Wagner
On 2009.05.27 at 10:48:30 -0700, Frank Yellin wrote: >I posted the following onto the OpenVPN forum, but it was suggested >that I would be better off mailing directly to this list. >= >I seem to have found a bug in 2.1_rc16 that is also apparent in earlier >

Re: [Openvpn-devel] Unable to use -OFB or -CFB ciphers in OpenVPN

2009-05-28 Thread Victor Wagner
On 2009.05.27 at 23:17:39 -0700, Frank Yellin wrote: >[Just to you, not the list.] >I figured that someone had to have noticed this problem before. But >when I googled "OpenVPN BF-OFB" or "OpenVPN BF-CFB", I couldn't find >anything. Of course you haven't find anything about Blo

Re: [Openvpn-devel] Unable to use -OFB or -CFB ciphers in OpenVPN

2009-06-01 Thread Victor Wagner
On 2009.05.30 at 04:38:41 -0600, James Yonan wrote: > > The OFB and CFB cipher modes in OpenVPN have not been well-tested and > should be considered experimental at this point. > They are not compiled by default mostly to prevent someone from > accidentally using them. Okay, you see there is

Re: [Openvpn-devel] Unable to use -OFB or -CFB ciphers in OpenVPN

2009-06-01 Thread 'Victor Wagner'
On 2009.06.01 at 07:45:13 -0500, dave wrote: > I would suspect that the exclusion is due to: > > A) in CFB/OFB/CNT, the encrypted stream is byte-bounded, as opposed to > block-bounded. There may be some assumptions in the code that assume > the cipher text is a multiple of block lengths. As su

[Openvpn-devel] Character classes in the tls-verify script

2009-10-23 Thread Victor Wagner
I've found out that string_mod family of function do very bad job with certificates with cyrillic characters in the subject. As of OpenVPN 2.1_rc19 class CC_PRINT is determined by function isprint from ctype.h, which does wrong job if there was no setlocale call (and there is no setlocale call in

Re: [Openvpn-devel] Character classes in the tls-verify script

2009-10-25 Thread Victor Wagner
On 2009.10.24 at 13:39:56 -0600, James Yonan wrote: > Victor Wagner wrote: > > I've found out that string_mod family of function do very bad job > > with certificates with cyrillic characters in the subject. > > > > As of OpenVPN 2.1_rc19 class CC_PRINT is determi

Re: [Openvpn-devel] Character classes in the tls-verify script

2009-10-26 Thread Victor Wagner
On 2009.10.24 at 13:39:56 -0600, James Yonan wrote: > > Can you submit a patch (as an email attachment) with this fix? Attached This patch also contains X509_NAME_oneline replacement, which handles MSB characters. I've not checked if this patch applies cleanly to unmodified source. I've just d

[Openvpn-devel] OpenVPN and modern cryptography

2009-10-29 Thread Victor Wagner
Now openvpn in tls-server mode requires specification of Diffie-Hellman parameters for ephemeral key. This is probably good thing for SSLv3 when only RSA and DSA ciphersuites are supported. DSA ciphersuites always require DH parameters, and RSA ciphersuites without DHE key exchange do not provide

Re: [Openvpn-devel] [Openvpn-users] OpenVPN and OpenSSL TLS issue ? (CVE-2009-3555)

2009-11-08 Thread Victor Wagner
On 2009.11.08 at 00:17:38 +0100, David Sommerseth wrote: > > Well said! Thank you for emphasising this. In my earlier posts, I > never intended to suggest that this was a work around, just to be clear > about that. But --tls-auth is now, how I see it, the only way currently > available "immedi

Re: [Openvpn-devel] [Openvpn-users] OpenVPN and OpenSSL TLS issue ? (CVE-2009-3555)

2009-11-08 Thread Victor Wagner
On 2009.11.08 at 12:59:47 +0100, David Sommerseth wrote: > > This flaw makes it, how I have understood it, possible to "duplicate" an > on-going SSL connection (or transaction, which it often is referred to), > making the SSL based server believe those two connections are the same > client. > Th

Re: [Openvpn-devel] Script interface to trigger events depending on the validity of a certificate

2009-11-11 Thread Victor Wagner
On 2009.11.11 at 09:40:59 +0100, David Sommerseth wrote: > On 10/11/09 17:16, Till Maas wrote: > > I would like to get a notification in case a client certificate is used > > for a connection to an OpenVPN server, that is about to expire soon. Is > > there currently a way to do this? I looked into

Re: [Openvpn-devel] Script interface to trigger events depending on the validity of a certificate

2009-11-11 Thread Victor Wagner
On 2009.11.11 at 13:00:05 +0100, David Sommerseth wrote: > > Good point! I was not aware of the Apache/mod_ssl way of doing it. My > only concern about that is if it would be possible to exhaust the memory > pool for environment variables? Imagine a a buffer overflow bug if an > attacker sends

Re: [Openvpn-devel] Script interface to trigger events depending on the validity of a certificate

2009-11-12 Thread Victor Wagner
On 2009.11.11 at 16:04:12 +0100, David Sommerseth wrote: > I completely agree, that under normal circumstances, it should be enough > by letting OpenSSL take care of the certificate chain. But as OpenVPN > now do list more certificates already, I was just trying to keep that > possibility still op

Re: [Openvpn-devel] Character classes in the tls-verify script

2009-11-12 Thread Victor Wagner
On 2009.11.12 at 10:01:55 -0700, James Yonan wrote: > Victor Wagner wrote: > > On 2009.10.24 at 13:39:56 -0600, James Yonan wrote: > > > >> Can you submit a patch (as an email attachment) with this fix? > > Attached > > > > This patch also contains X5

Re: [Openvpn-devel] Character classes in the tls-verify script

2009-11-13 Thread Victor Wagner
On 2009.11.12 at 19:25:16 +0100, David Sommerseth wrote: > > no-name-remapping has side effects, i.e. disables system method of > > script execution. > > I'd have to disagree here. OpenVPN should not change the default > behaviour at all, as that can break a lot of already implemented > instal