[olsr-dev] olsrd secure plugin

Sven-Ola Tuecke (spam-protected)
Wed Feb 23 11:44:40 CET 2005

Hi Andreas,

thanks for your reply. Well, here in Berlin we are working on a small 
registry system to manage IPs and participants. For now, nearly all users 
are cooperative which means there is always a chance to make an email note 
to the one injecting wrong/disfunct HNA4s.

To be prepared for the things to come its always good to have options. One 
of these options will be the secure plugin - we may distribute the key via 
email just to make sure the database entry of a participant is correct. If 
rejecting HNAs is not an option, there are plenty of methods left for 
adjusted responses to administrative/technical problems anyhow.

Regards, Sven-Ola

"Andreas "Tønnesen"" <(spam-protected)> schrieb im Newsbeitrag 
> Hi Sven,
> The secure plugin only uses a SHA-1 hash function from openSSL as far as I
> can remember. I just used the openSSL lib since it is the most widespread
> lib for theese things. I think it's a good idea to use a much smaller lib,
> (or perhaps include hashing code in the plugin?). All you really need is a
> hashing function, so if MatrixSSL supports SHA-1/MD5 etc. (which I guess
> it does), it should work fine :)
> Regarding your HNA blocking question that is a rather tricky one. This has
> been discussed before and I belive we came to the conclusion that it would
> not be supported in officcial olsrd code. The problem is that this kind of
> functionallity has to be distributed if we are to avoid routing loops.
> I think the best way is to create a plugin that will broadcast a set of
> IPs to ignore when parsing HNA messages. But then there is the security
> issue...
> I fully agree that this would be a useful feature but IMO it can only be
> done if it is distributed.
> - Andreas
>> Hello oncemore,
>> while I'am in questioning mode - the secure olsr plugin rely on the
>> OpenSSL
>> library which is really huge (in terms of flash/disk space usage). Is
>> there
>> a chance to link it against MatrixSSL?
>> Regards,
>> Sven-Ola
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> ---------
> Andreas Tønnesen
> http://www.olsr.org
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