This guy is either trolling for the sake of it, or he is going to bundle some malware into his upcoming "bitcoin cracker".

Anyway, if you don't trust your machine's RNG, there is a way to use your own entropy via restore backup feature: https://bitcointalk.org/index.php?topic=673035.0

In every practical sense, Bitcoin launched to the "public-at-large" in November 2013.

Comparing WWW of 1993 (14 million users, project has been existing for decades) to Bitcoin of 2009 (10-20 users at most) is either extremely stupid or intentionally misleading.

I thank you for deciding to leave the forum and not subject people to reading your cringeworthy posts any more.

BitGo is a great proof of concept. I'm almost certain that multisig wallets like this is how the majority of people will use bitcoin for day to day transactions in the future (the only alternative to multisig+3rd party being multisig+hardware wallet)

Though I second ADgordo that it badly needs to support deterministic wallets. Full on HD wallet support (BIP32) would be awesome. Having single-address wallets in 2014 is a big turn off  

Feature request: it would be great if it were possible to sort addresses in the Coin Control window by balance or label (similar to how it's done in the Wallet Properties window)

RE the new OS X testing version: still getting intermittent "Segmentation fault: 11" errors. The worst part is that Armory needs transaction history rescan after that, which takes 20-25 minutes.

Yes. "[[change received]]" is just a label. Internally, this address is no different from your other addresses.


Have been using this for a couple of days with a watch-only wallet. Works pretty well. Only had an error once (iirc it was after clicking the "copy to clipboard" button in the "receive bitcoins" window)

Something like 0.03% of world population uses Bitcoin now and we had about 50% growth in the past month alone.

If you want to be bearish about Bitcoin, you need to have a very good answer as to why this market share won't keep increasing in the future 

• Buy a cheap netbook. Never connect it to Internet (disabling wi-fi in BIOS or device manager is best)
• Install Armory and run it in Offline mode
• Create a new wallet and print a paper backup of it
• Never worry about change addresses again!

There you go.

It's even worse. Even if you don't doubt Cas' integrity, there are other ways in which your private key may be compromised, such as a bug in his RNG or a gag order from NSA to transmit all private keys to them.

No, it won't work that way. To create a transaction you need to know which outputs to use and the offline machine doesn't know about any outputs at all.

E.g. let's say you have a new address and today (Dec 1, 2013) you received 1 BTC to this address. In order to spend this 1 BTC you will need to refer to the 32-byte hash of that Dec 1, 2013 transaction. Knowing only the address is not enough.

First, there are magnitudes more computing power behind Bitcoin, which makes Bitcoin far, far more secure than any other cryptocurrency.

Second, even if the premises of that post is true and 2.5-minute confirmations are more secure than 10-minute ones, it would be much easier to change Bitcoin to 2.5-minute blocks (which is a relatively trivial change as long as the majority of miners agree) than to switch to Litecoin losing tens (probably hundreds) of million dollars invested into the Bitcoin network security.

When creating a transaction you need to know which unspent outputs to use, so knowledge of the blockchain is necessary.

Well, if you are extremely paranoid, you can avoid using USB sticks: simply print the unsigned-tx file and manually type it into the offline PC. Do the same with the signed-tx file to transfer it to the online PC for broadcasting.

The logic of litecoin advocates is self-defeating: for litecoin to prosper, it must wrest its market share from bitcoin (remember it is almost a carbon copy with minimal changes).

• If this is not possible, then litecoin is worthless.
• If, on the other hand, this is possible, then litecoin is also worthless (along with all other cryptocurrencies), because hundreds of new altcoins will appear every year, diluting the market share of bitcoins, litecoins and all other altcoins.

In other words, Litecoin is an interesting experiment on indirectly bypassing the Bitcoin emission limits. If this experiment succeeds, this means that emission cannot be meaningfully controlled in a decentralized way and all cryptocurrencies are therefore worthless.

...and the ATH was broken in less than 4 months 


Anyway, what is clear from this thread is how hopelessly wrong people are when trying to time the market (not talking about you specifically Rampion). It doesn't matter if you lived through 2011 and April 2013 bubbles and you think you know the markets inside out. You might get lucky and catch a falling knife (or call the top) successfully, but that's just gambling.

The main problem with this specific argument is: if they are faking volume why aren't they faking volume increases on crashes as well?

True, see this 1995 article about internet for example:
http://www.thedailybeast.com/newsweek/1995/02/26/the-internet-bah.html

It looks ridiculous now but back then people were seriously thinking that internet would fail for technical reasons.

Посмотрел исходники, вот релевантные файлы:
https://github.com/bitcoin/bitcoin/blob/master/src/wallet.cpp
https://github.com/bitcoin/bitcoin/blob/master/src/crypter.cpp
https://github.com/bitcoin/bitcoin/blob/master/src/crypter.h


Для шифрования там используется AES-256, для деривации ключа - SHA-512. Скорость брута упрется именно в SHA, т.к. количество раундов деривации зависит от скорости процессора, но как минимум 25000.

Зная сколько мегахешей выдает видюха для майнинга можно примерно посчитать с какой скоростью она будет перебирать пароли 

В протоколе биткойна используется SHA-256, это навскидку раз в 5 быстрее на ГПУ чем SHA-512 (из-за 64-битных операций в последнем).
Т.е 400 MH/s SHA-256 это 80 MH/s SHA-512 или 3200 паролей в секунду (при 25к раундах).

Если пароль не состоит только из цифр, то брутить 9 символов с такой скоростью бесполезно, разве что по словарю можно попробовать.

P.S. wallet.dat - файл базы данных berkeley db

Ironically, these events are helping the cause of bitcoin, I think. When  Mastercard, Paxum or some bank can close your account or refuse transfer for basically no reason (other than FUD), it makes bitcoin's advantages all more clear.

Meh. To me the bitcoin system is much more clear than, say, United States Dollar. I doubt that anyone who is not an economist fully understands how USD works. Bitcoin is pretty simple in this regard.

Meh I did a quick forum search and it seems all those things have been discussed back in 2010, and developers mostly agreed it was a bad idea to use bitcoin for anything but digital cash. Satoshi though wasn't against hash-sized arbitrary data in the blockchain.

EDIT: there was even the exact same proposal of DNS on top of the bitcoin blockchain: http://privwiki.dreamhosters.com/wiki/Bitcoin_DNS_System_Proposal
This article even discusses overcoming potential resistance bitcoin developers/community

This.

The blockchain is simply a way to reliably establish ordering among the sequence of events without relying on a trusted authority. Incidentally, ordering of transactions is the central element of a digital currency system, but it can also be used for many other things. All of them can easily use the same blockchain without interfering with each other.

Come to think of it, even alternative currencies may probably be implemented ON TOP of the Bitcoin blockchain and come with the security of 10 terahash network out of the box.