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Showing 18 of 18 results by voneiden
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Topic
Board Armory
Re: Armory scanning the whole blockchain every time i start the program
by
voneiden
on 19/09/2013, 11:19:58 UTC
The scanning doesn't take too long on my desktop (about 4 minutes) but it sure is going to be a delight to see faster startup. What's the right branch for testing out the linux version you mentioned earlier?

Thanks for your hard work!
Post
Topic
Board Bitcoin Discussion
Re: Why are people so obsessed with Amerifags when talking about Bitcoin?
by
voneiden
on 23/06/2013, 10:33:52 UTC
When did 4chan take over this board?

You're only saying that because you can't triforce.
  ^
^  ^

^
^  ^

Damn it!
Post
Topic
Board Beginners & Help
Re: Is Dropbox a safe place keep my TrueCrypted BTC wallet backup?
by
voneiden
on 22/06/2013, 21:06:02 UTC
Then it's not so shitty after all, is it? I'm a noob in encryption, anyone got any counter arguments?

Well, it's just bruteforcing passphrases. For every character you add to the passphrase length, you change the difficulty of bruteforcing quite a lot. Let me demonstrate

Just imagine what you could do with the 138 Thash/s SHA256 hashpower that the bitcoin network currently has LOL.

OK, lets imagine. [source: http://calc.opensecurityresearch.com/ ]

Bruteforcing SHA256 at 138 terahash/s when key length is.. (oh, I just checked: according to blockchain.info the hashrate is today 174 terahash/s)
8: less than a second (lowercase alphanumeric) | 1 second (mixed alphanumeric)
9: less than a second | 1 minute 39 seconds
10: 27 seconds | 1 hour 43 minutes
11: 16 minutes | 4 days
12: 10 hours | 275 days
13: 15 days | 47 years
20: 3 billion years | 164 trillion years
256 lowercase alphanumeric characters (SHA256 hash):  Huh

So keep your passphrases long. I suppose to maximize key strength one could hash the passphrase before using any standard truecrypt algorithm. It's rather likely that an attacker would attempt to bruteforce against a known hashing algorithm (or a sequence of them), so that's one more hindrance.
Post
Topic
Board Service Discussion
Re: Does the Eurozone need more centralized EUR/BTC exchanges?
by
voneiden
on 22/06/2013, 19:01:07 UTC
We need exchanges with instant deposits via giropay or sofortbanking which is what bitcoin 24 had.

Weren't those instant deposits the bane of bitcoin24? Instant made it impossible to control criminal activity (depositing stolen money, quick trade to bitcoins, withdraw, poof) with grave consequences. I don't like it, but centralized exchanges are run by companies and companies need to comply with local legislation or they risk blowing up everyone's money in the process.

One option would be that instant deposits could be enabled for only for members whose identity is verified. However there's no smart framework for verifying identities of EU citizens at the moment that I know of. I'd be happy to know of one though. Requiring customers to mail a notarized copy of their passport seems excessive in this digital age.

Post
Topic
Board Service Discussion
Topic OP
Does the Eurozone need more centralized EUR/BTC exchanges?
by
voneiden
on 22/06/2013, 18:03:05 UTC
I'll cut straight to the topic - Currently there quite a few EU based centralized exchanges running that deal in Euros. As things in the Bitcoin world have been evolving we have seen various issues with these centralized exchanges. Centralized exchanges operate at the mercy of their bank. At every turn there can be unexpected setbacks, such as SEPA chargeback as experienced by localbitcoins recently.

How do you feel about the current situation? Are centralized exchanges a necessary evil? Could things be improved? What do you not like about current existing exchanges?

I dislike forced USD trade (Bitstamp), exchange fees that are over 0.3%, and the volume monopoly of the biggest exchanges. And yes! I'm interested in improving the situation, thus I'm asking for your opinions and thoughts.
Post
Topic
Board Beginners & Help
Re: Is Dropbox a safe place keep my TrueCrypted BTC wallet backup?
by
voneiden
on 22/06/2013, 12:45:38 UTC
Truecrypt? LOL ... it can be cracked in no time with some Radeon GPUs:
http://hashcat.net/forum/thread-2301.html
Seems like a shitty encryption if it's that easy.

Quote
PBKDF2-HMAC-SHA512 / AES: 95 kHash/s

Yeah.. it's gonna take 72 years to crack a 8 letter alphanumeric password.
Post
Topic
Board Beginners & Help
Re: Trading BTC for Posts on forum
by
voneiden
on 22/06/2013, 12:29:57 UTC
Post
Topic
Board Beginners & Help
Re: Bitcoin not running exe
by
voneiden
on 22/06/2013, 12:19:13 UTC
But when I minimize it, the program closes, and won't open again.  What is happening?

Bitcoin-qt might minimize to system tray. Does it say "Cannot obtain lock on data directory ... ... Bitcoin is probably already running." when you attempt to open it again?

Well, in that case bitcoin is already running, like it says. All you have to do is open it from your system tray, which is located at bottom right of your screen should you be using a Windows OS of some sorts.
Post
Topic
Board Beginners & Help
Re: chargeback risk when selling with SEPA
by
voneiden
on 21/06/2013, 22:46:32 UTC
And I've been working on a project that would rely only on SEPA payments for the last few weeks. Uh oh..
Post
Topic
Board Beginners & Help
Re: My wallet was just hacked
by
voneiden
on 18/06/2013, 09:52:42 UTC
Any other bitcoin related applications you have installed? I imagine its quite easy for an app to enable the bitcoind api and then hammer sendbitcoins request over the api until the user unlocks the wallet (which is a security flaw of you ask me. )
Post
Topic
Board Beginners & Help
Re: Is Linux Ubuntu the most secure OS to store my BTC on?
by
voneiden
on 17/06/2013, 20:11:51 UTC
Use gentoo and harden the shit out of it using grsecurity and selinux. Grin

+1, posting from hardened gentoo. :-) Armory with offline wallet running on linux is pretty much as safe as it gets. And backups, backups and backups..
Post
Topic
Board Beginners & Help
Re: help please
by
voneiden
on 17/06/2013, 20:02:23 UTC
Never heard of Aj's pool. 200 coins?

Something doesn't sound quite right here.
Post
Topic
Board Beginners & Help
Re: but according to the gods at bitcointalk I am still a newbie
by
voneiden
on 17/06/2013, 17:52:34 UTC
What can you expect from a newbie? Heh heh.
Post
Topic
Board Beginners & Help
Re: Newbie Forum Graduation? Post #5 here.
by
voneiden
on 22/05/2013, 08:18:53 UTC
I'm outta here.
Post
Topic
Board Beginners & Help
Re: Best Litecoin wallet?
by
voneiden
on 22/05/2013, 08:18:08 UTC
Is it possible to make paper wallets and then monitor them as watch only addresses with the official program?

I don't think so. Maybe this will do? http://explorer.litecoin.net/

I use the btce wallet


You're trusting all your litecoins on a russian service that might disappear any day without a trace?
Post
Topic
Board Beginners & Help
Re: Using John the Ripper to crack wallet
by
voneiden
on 22/05/2013, 08:04:42 UTC
He's trying to recover his wallet's password.

That's what GravePhoenix, first time poster, says he's trying. Better not place your trust so easily on bitcoin world. :-)
Post
Topic
Board Beginners & Help
Re: bitcoin-dissector with wireshark
by
voneiden
on 22/05/2013, 07:43:33 UTC
If you're running linux..

I'd give it a shot with the old public release of wireshark; http://wiresharkdownloads.riverbed.com/wireshark/src/wireshark-1.6.15.tar.bz2 and then just follow the readme on the github.

If you're running windows, uh.. try something completely different. What's your level of understanding on packet sniffing? Would it be enough to observe the transactions going live on blockchain.info?
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Topic
Board Beginners & Help
Re: New on here
by
voneiden
on 22/05/2013, 07:33:41 UTC
#5 Hopefully that does it... I will stop now  Smiley

Pretty clever. I guess I should do the same, because I can't really seem to find any thread on the newbie forum that I can contribute to..