Re: [Help-gnunet] warning RSA signature

[Christian Grothoff]

Well, I'm sorry to say this is a known issue (aka bug), which I've so 
far been unable to diagnose. It has occurred at random for a while and 
more recently started to happen frequently, but we still don't have a 
nice and controlled way to reproduce this one locally.

What we do know is that it seems to be largely harmless in "normal" 
operation --- your peer fails to connect to some other peer(s), but as 
far as we know it still always connects to plenty of other peers.

What we also know is that this entire code will change radically 
sometime in 0.9.5 or 0.9.6 (as we plan to move from RSA to STS-DH with 
ECC for signatures).

Given that it is "mostly harmless" and scheduled for "complete 
replacement", it is also not clear how much energy we should spent on 
fixing this one at this time.

I hope this helps / clarifies what's going on.

Happy hacking!

Christian


On 11/02/2012 12:15 PM, SMoratinos wrote:
> Hello,
>
> after a new install from HEAD, I start arm : gnunet-arm -s
>
> and some warning appears :
> ------------------------------
> Service `arm' has been started.
> Nov 01 21:03:28-581508 util-19484 WARNING RSA signature verification 
> failed at crypto_rsa.c:1349: Bad signature
> Nov 01 21:03:28-582106 transport-19484 WARNING External protocol 
> violation detected at gnunet-service-transport_validation.c:1152.
> Nov 01 21:03:28-751395 util-19484 WARNING RSA signature verification 
> failed at crypto_rsa.c:1349: Bad signature
> Nov 01 21:03:28-751506 transport-19484 WARNING External protocol 
> violation detected at gnunet-service-transport_validation.c:1152.
> ------------------------------
>
>
> and after some minute there are few errors :
> ------------------------------
> Nov 01 21:12:04-887183 core-19526 ERROR Received PING from ` ICV0' for 
> different identity: I am `B312', PONG identity: ` IOLE'
> Nov 01 21:12:04-887461 core-19526 WARNING External protocol violation 
> detected at gnunet-service-core_kx.c:1012.
> Nov 01 21:12:52-099498 core-19526 ERROR Received PING from ` PRQD' for 
> different identity: I am `B312', PONG identity: ` AKVR'
> Nov 01 21:12:52-099616 core-19526 WARNING External protocol violation 
> detected at gnunet-service-core_kx.c:1012.
> Nov 01 21:13:48-685588 core-19526 WARNING External protocol violation 
> detected at gnunet-service-core_kx.c:1558.
> ------------------------------
>
>
> What's going wrong ?
> RSA signature verification failed (util) --> External protocol 
> violation (transport) --> ping/pong (core) not possible
>
>
> I'm on Debian 7 x64 (install with tutorial 
> https://gnunet.org/installation-debian5-svn )
> My configuration is the default configuration (an empty file 
> /etc/gnunet.conf).
> Gnunet-gtk isn't installed.
>
> The output of 'gnunet-core' command seems correct, i have some Peer 
> with hash.
> The output of 'gnunet-arm -I' command seems correct.
> The output of 'gnunet-rsa -c /etc/gnunet.conf -p 
> /home/gnunet/.gnunet/.hostkey' seems correct.
>
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