Topics created by groll

Interesting stuff, we had not seen any attacks for a small while before the last hard fork and I found this a bit worrying. I want to know that we are worth attacking :)

Part of the NTP protocol is, that the client can syncronize with several NTP server.

If more than one server is configured, it selects the one with the best stratum value.
If several with the same stratum are configured, the client will do a round robbin at every start of the NTP protocol.

This means, that an Attacker must spoof more than one server to be sure, that a sufficient number of clients are on the fake time.
Also as there are a large number of NTP server available in the Internet, and most people use NTP server located on their continent, it would be a huge effort to attack the network by spoofing NTP servers, as an attacker would have to spoof several NTP server managed by several provider/companies all over the world.

I don’t see a big risk here.

Powercoin is dying not because the 51% attack has messed it up completely. It’s dying because the developer seems weak. He couldn’t manage the project properly and gave up easily.

[quote name=“freedomfighter” post=“6635” timestamp=“1369562395”]
I suspect these guys for attack.
http://wemineltc.com/
i was told they had 5btc give away for 33000 block.
and have about 2.3gh
[/quote]

Would have made sense if they hadn’t orphaned their own block thus potentially losing that 5 BTC ;)

~2.25GH/s

[quote name=“groll” post=“5062” timestamp=“1369173157”]
hi,
I’m mining feathercoins for 2 weeks now, but i have very low end GPU, looking at this forum for some times also, will possibly contribute on some aspect if possible. my work is around computer security: mainly IAM and cryptography.
[/quote]

Hey Groll, welcome to the forums!