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621  Bitcoin / Bitcoin Discussion / Re: Mooncoin taken over by the feds? on: September 16, 2011, 05:14:31 AM
Serial No. of the SSL certificate used on
moonco.in: 01:00:00:00:00:01:2C:EC:30:35:8B
ice.gov 01:00:00:00:00:01:2C:EC:30:35:8B
(the sha1 and md5 fingerprints are also the same)

Hahahahaha  Grin That's pathetic enough to make me laugh.

OP can you update your title and first post with this information please. I came in here expecting government thugs but all I got was a scammer who is about to be taken in by gover... oh wait.
622  Other / Off-topic / Re: Bruce Wagner and the surrounding drama. on: September 04, 2011, 04:29:30 AM
Has this Bruce guy stolen someone's BTC or what? There are so many threads about him but I can't figure out who on these forums has actually been wronged by him. I'm sorry if this has already been asked a dozen times. A link to the answer will be fine if nobody feels like explaining it again.

Some trolls have a silly theory that he is behind the MyBitcoin thing.

https://en.bitcoin.it/wiki/MyBitcoin

They have dredged all through his past to find new accusations to make but in the end they have nothing to prove his involvement with MyBitcoin or that he has done anything to anyone here.

There's plenty of evidence out there:
He used the pseudonym "TodWilliams" in his previous scams.
He continued to promote MyBitcoin despite posters here pointed out the security vulnerabilities of MyBitcoin.
Bruce uses the same webhost as MyBitcoin.

If that's not enough evidence, I don't know what is.


623  Bitcoin / Bitcoin Discussion / Re: Where will stop, the size of the database bitcoin. 1GB+ on: September 01, 2011, 05:15:20 AM
It probably isn't going to become a priority until the blockchain is around the 10-20 GB range.  Any computer newer than two years old and with a decent broadband connection can handle this kind of database.

The most common SSD drives are 64 to 80GB  Cry



you don't have to store it in %appdata%

-datadir=[old 2TB spinning disk]:\



That's what I'm doing on my desktop, but unfortunately the technique is not applicable for my laptop.

It's not a big concern for me though. I'm sure the standard the client will implement a "recent blockchain only" option or blockchain pruning soon. Any one of these new feature will solve the problem instantly, along with the slow client-up problem. 
624  Bitcoin / Bitcoin Discussion / Re: FBI Admits To Engaging In Infiltration, etc in Competing Currencies on: September 01, 2011, 01:22:25 AM
Do you really need a lesson in the differences between a Parliamentary monarchy and a republic? Harper won a majority government with a ridiculous MINORITY of the votes.

What does Parliamentary monarchy have to do with anything? Three POTUS won the election with minority popular votes. It's a common occurrence in all forms of representative democracy.
625  Bitcoin / Bitcoin Discussion / Re: Where will stop, the size of the database bitcoin. 1GB+ on: September 01, 2011, 01:09:39 AM
It probably isn't going to become a priority until the blockchain is around the 10-20 GB range.  Any computer newer than two years old and with a decent broadband connection can handle this kind of database.

The most common SSD drives are 64 to 80GB  Cry

626  Economy / Economics / Re: Advantage of free electricity and future value question on: August 18, 2011, 06:37:46 AM
It's actually a complete myth.  All "free electricity" means is you've got a few months before your landlord notices the overall power bill for the entire apartment double, at which point he's gonna investigate for about 5 minutes with an electrician and a no-contact ring amp meter then evict you.  No, it hasn't happened to me or anyone I know but it definitely would.

I don't know about the tenancy laws in your state, but where I live it's illegal to evict someone because of "excessive electricity usage". The landlord can only kick the miner out after the lease expires.
627  Bitcoin / Bitcoin Discussion / Re: p2p way to discourage fraud on: August 03, 2011, 12:40:37 AM
In both cases, you can only cause someone to lose coins, you can't get them yourself.  I argue that there are a smaller number of people who would want you to lose your coins for an indirect benefit than there are "men who want to watch the world burn".
Fraudster: I have $100, I want to buy 6.66 bitcoins.

Victim: Okay, deal. I put the 6.66 bitcoins in escrow.

Fraudster: Damn, I can't buy them. So sorry. I don't need the coins because the guy I was going to trade them with sold the thing I was going to trade him for to his nephew for cash to buy drugs instead, plus my wife spent the money I was going to buy the bitcoins with on a new pair of shoes. And, not that this matters, but my cat has swine flu.

Victim: Umm, I already put the bitcoins in escrow. If I burn them, I'm out the coins!

Fraudster: No, don't burn them. Just send them to me and I'll send them right back to you. I'm an honest guy, the deal just fell through, and I'm very, very sorry about that. Let me make it right -- just send me the bitcoins and I'll send them right back to you.

Victim: Well, if I burn them, I have zero chance. So I'll release them to you and hope you pay me back.

Fraudster: Sucker.

Note: This will not be obvious because the fraudster's name will not actually be "Fraudster". But if your name actually is "Victim", watch out.

If the victim is isn't naive enough to send out bitcoins for free, there's still an alternative:

Fraudster: I have $100, I want to buy 6.66 bitcoins.

Victim: Okay, deal. I put the 6.66 bitcoins in escrow.

Fraudster: Damn, I can't buy them. So sorry. I don't need the coins because the guy I was going to trade them with sold the thing I was going to trade him for to his nephew for cash to buy drugs instead, plus my wife spent the money I was going to buy the bitcoins with on a new pair of shoes. And, not that this matters, but my cat has swine flu.

Victim: Umm, I already put the bitcoins in escrow. If I burn them, I'm out the coins!

Fraudster: Ok, new deal. I send you $50, you send me the coin. Take it or leave it. If you don't take this new deal then you earn $0. If you take it you earn $50. Your choice.
628  Bitcoin / Bitcoin Discussion / Re: most secure savings wallet: NO wallet on: August 02, 2011, 03:51:34 PM
I'm sorry but that trick only adds a negligible amount of entropy, which is negligible. It doesn't matter what kind of tricks you use, whether you end up with 20 bits of entropy or 200 bits of entropy, you're still greatly weaking the system. Suppose by using lots of passwords, lots of substr, repeated hashes, and salts and you end up with 250 bits of entropy, that's still only 1.5% of the entropy of a real key. Is it worth it to go through all that custom code and memorization just to end up with a private key that's 64 times weaker? Isn't it much safer just printing out the key pair like OP suggested or burning the wallet.dat on a CD?

As for your challenge, you missed my point about mentioning the $900,000 USD reward money. I'm not saying it's possible for an attacker to target your specific password. In fact, I can almost gurantee your address 1KJvYREkZxEgDczTKoEtvrhfkALsFsWKRa won't be brute-forced. I was claiming that if enough people saw your post and adopted your method, the attacker can steal from those people collectively, since they all share the same tiny keyspace.

Sorry if I come off as too critical, but I'm just trying to make sure bitcoin stays secure. If lots of people spoke out critically against mybitcoin in the first place then it wouldn't have ended up the way it did. I believe the only to way to ensure the collective security of the bitcoin eco-system is to harshly criticize any non-secure algorithm, organizational structure, and business practice that gets suggested. Every security compromise and every fraud devalues everyone's bitcoins, and more importantly threaten the future of this cryptographic currency.  

I'll stress it again, it's almost perfectly for safe for jackjack to use his method for himself. But if somehow this method ends up being implemented in the official client and thousands of people start using it, then the bruteforcing will begin and people will lose money and see it as a bitcoin security hole when it clearly isn't. I'm only criticizing it so that this worst case scenario doesn't happen. You're more than welcome to use it on your own.
Sure it's less secure but at least people using that won't lose/delete/formatc:/etc their wallets definitely and cry "I deleted my wallet.dat, I can't recover my coins, it's Bitcoin's fault" anymore
I think that if each person choses his own function and knows they are weakening his safety, it's remains mostly ok
The problem is indeed if people use it without understanding what they do or if the functions are in implemented in the client
I didn't understand your first post like that

I'll add a NSFNewbies tag in my post Smiley

Take the polish exchange for example. The owner basically said "Amazon lost my wallet.dat, I can't recover my coins". Then someone suggested to take Amazon harddrive offline and recover wallet.dat.

When people use "Sorry guys, I kinda forgot my exact password, hashing algorithm, and substr offset during my vacation.", I'm afraid someone will suggest taking the owner offline and water-board him until the password, hashing algorithm, and substr offset is recovered.
629  Bitcoin / Bitcoin Discussion / Re: p2p way to discourage fraud on: August 02, 2011, 03:30:02 PM
The sender has two options with promised coins, finish payment, or destroy. Destroyed coins are returned to the unmined coin count or just eliminated from circulation.

This essentially eliminates the receiver's benefit of defrauding senders.  Senders also cannot defraud receivers since they cannot get the coins back, they can only destroy them.
This doesn't really work. What typically happens in the fraudster says "Sorry, I can't go through with the deal because <lame excuse> . Release the funds and I'll reimburse you." Now, what's your incentive to destroy them?

Bingo. Denial of service.

Suppose NSA/SS/Random asshole/bitter ex just want you to lose money. They can start a transaction, and after you send the promise, ignore you thereafter. It cost them 0 bitcoins, 1 minute of typing, and gives them 10 minutes of trolling entertainment. It will cost you the entire transaction amount. Classholes will even write bots to do this for the lulz, I promise.

Please excuse the cliché hollywood quote, but: "Some men just want to watch the world burn.".
630  Bitcoin / Bitcoin Discussion / Re: most secure savings wallet: NO wallet on: August 02, 2011, 03:11:13 PM
Instead you can create yourself your privkey (at least the hex one, 64 characters long, I don't know if all base59 ones are valid they are not because of the checksum) using your own pattern that you know by heart, thus no need to write it
E.g. 1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef for 19ffB4HttNCHfY1t3YuErEytCspyHyVMwv

just for fun i sent you 0.02 btc to that imaginary address Cheesy ...you'll have to now import it quick before someone else does Wink

I nearly lost them, just figured out my wallets seem broken Grin I had to pay fees for not being stolen but thanks Smiley

Really smart, I love it
Just one thing: the priv key has been written somewhere

Instead you can create yourself your privkey (at least the hex one, 64 characters long, I don't know if all base59 ones are valid they are not because of the checksum) using your own pattern that you know by heart, thus no need to write it
E.g. 1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef for 19ffB4HttNCHfY1t3YuErEytCspyHyVMwv

Or if you prefer learn sentences: md5('I love bitcoin').md5('Paypal suxxx') for 1G1b4mbjaCYNxsZJyaWV9qyE5cFVhZxBcy

Or even substr(md5('I love bitcoin'), 0, 14).md5('Paypal suxxx').substr(md5('I love bitcoin'), 14, 18)  Grin

This is very dangerous and very stupid, and I'm talking about sending BTC to an anonyomus Nevis LLC level stupid here.

The current bitcoin market cap is $90 million USD. Even if just 1% of bitcoiners take your advice, that's still $900,000 USD free money for anyone capable of setting up a GPU farm (a rare talent, I might add Grin). Human chosen passwords only have 1.0 to 1.5 bits of entropy per letter. Your examples contain less than 30 bits of entropy, and that's not taking into account the hacker will populate their dictionary with frequently appearing words from this forum. Compared to the ~256 bits of entropy in real Bitcoin keys, your method would generate private keys that are 2^226 ~= 1.07839787 × 10^68 times easier to brute-force.
That's why I added the substr trick...
If people are stupid enough to just use md5.md5 that's their problem...
Everyone know they MUST use salts and tricks like that too...
1KJvYREkZxEgDczTKoEtvrhfkALsFsWKRa: my two passphrases are 'jackjack' and 'iamzill', come at me bro

I'm sorry but that trick only adds a negligible amount of entropy, which is negligible. It doesn't matter what kind of tricks you use, whether you end up with 20 bits of entropy or 200 bits of entropy, you're still greatly weaking the system. Suppose by using lots of passwords, lots of substr, repeated hashes, and salts and you end up with 250 bits of entropy, that's still only 1.5% of the entropy of a real key. Is it worth it to go through all that custom code and memorization just to end up with a private key that's 64 times weaker? Isn't it much safer just printing out the key pair like OP suggested or burning the wallet.dat on a CD?

As for your challenge, you missed my point about mentioning the $900,000 USD reward money. I'm not saying it's possible for an attacker to target your specific password. In fact, I can almost gurantee your address 1KJvYREkZxEgDczTKoEtvrhfkALsFsWKRa won't be brute-forced. I was claiming that if enough people saw your post and adopted your method, the attacker can steal from those people collectively, since they all share the same tiny keyspace.

Sorry if I come off as too critical, but I'm just trying to make sure bitcoin stays secure. If lots of people spoke out critically against mybitcoin in the first place then it wouldn't have ended up the way it did. I believe the only to way to ensure the collective security of the bitcoin eco-system is to harshly criticize any non-secure algorithm, organizational structure, and business practice that gets suggested. Every security compromise and every fraud devalues everyone's bitcoins, and more importantly threaten the future of this cryptographic currency.  

I'll stress it again, it's almost perfectly for safe for jackjack to use his method for himself. But if somehow this method ends up being implemented in the official client and thousands of people start using it, then the bruteforcing will begin and people will lose money and see it as a bitcoin security hole when it clearly isn't. I'm only criticizing it so that this worst case scenario doesn't happen. You're more than welcome to use it on your own.
631  Bitcoin / Bitcoin Discussion / Re: most secure savings wallet: NO wallet on: August 02, 2011, 02:14:28 PM
Really smart, I love it
Just one thing: the priv key has been written somewhere

Instead you can create yourself your privkey (at least the hex one, 64 characters long, I don't know if all base59 ones are valid they are not because of the checksum) using your own pattern that you know by heart, thus no need to write it
E.g. 1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef for 19ffB4HttNCHfY1t3YuErEytCspyHyVMwv

Or if you prefer learn sentences: md5('I love bitcoin').md5('Paypal suxxx') for 1G1b4mbjaCYNxsZJyaWV9qyE5cFVhZxBcy

Or even substr(md5('I love bitcoin'), 0, 14).md5('Paypal suxxx').substr(md5('I love bitcoin'), 14, 18)  Grin

This is very dangerous and very stupid, and I'm talking about sending BTC to an anonyomus Nevis LLC level stupid here.

The current bitcoin market cap is $90 million USD. Even if just 1% of bitcoiners take your advice, that's still $900,000 USD free money for anyone capable of setting up a GPU farm (a rare talent, I might add Grin). Human chosen passwords only have 1.0 to 1.5 bits of entropy per letter. Your examples contain less than 30 bits of entropy, and that's not taking into account the hacker will populate their dictionary with frequently appearing words from this forum. Compared to the ~256 bits of entropy in real Bitcoin keys, your method would generate private keys that are 2^226 ~= 1.07839787 × 10^68 times easier to brute-force.
632  Bitcoin / Bitcoin Discussion / Re: MyBitcoin.com, the Rabbit & the Alligator - A Lesson of Subterfuge & Deception on: August 02, 2011, 09:27:42 AM
Since when do animals talk?

Since when did people start sending cash to anonymous corporations in Nevis?
633  Bitcoin / Bitcoin Discussion / Re: Incompetence, malfeasance, and fraud. Oh My! on: August 01, 2011, 02:48:06 AM
It doesnt matter what 300 million people want as its up to the 5 people on the supreme court.

Their opinion on what the constitution says is the final arbiter so really there is no 'will of the people'.

Constitutional amendments have nothing to do with the supreme court. A successful constitutional amendment requires two-thirds majority in both houses and ratification in 38 states. It does not involve the supreme court at all, so their opinion is irrelevant in the subject matter.


The average IQ will always be 100.

Arguably (and fascinatingly) untrue:

http://en.wikipedia.org/wiki/Flynn_effect

Nothing in that article contradicts kiba's statement. In fact, in the first paragraph it clearly states: "by convention the average of the test results is set to 100".
634  Bitcoin / Bitcoin Discussion / Re: Incompetence, malfeasance, and fraud. Oh My! on: August 01, 2011, 01:52:32 AM
Between 200 million Americans evading taxes, and 200 million American voting for a constitutional amendment repelling the income tax, which one do you think will change the system?

The former. In most states, people don't get to vote on U.S. constitutional amendments.

People vote for congressmen and senators who will vote for constitutional amendments. That's pretty much how representative democracy work.
635  Bitcoin / Bitcoin Discussion / Re: Incompetence, malfeasance, and fraud. Oh My! on: August 01, 2011, 01:48:59 AM

People don't spend $2000 to open an anonymous LLC in a tax haven to conduct legitimate business.

People only do that to commit tax fraud, and now, bitcoin fraud.

A WHOIS lookup takes 2 seconds. Even without the WHOIS information I already knew it was a scam from their business model.

+1 agreed.

-1 disagreed. Many people open accounts outside the US, because the US tries to interfere with and steal from their legitimate business. Now, perhaps MyBitcoin is a total catastrophe, and perhaps the owner was ill-intentioned all along, but please don't vilify honest people who simply don't want the tyrannical US Gov't interfering with them.

I strongly disagree with the US' current citizenship-based tax policies and income tax in general. I try to change these laws by speaking out against them, writing to my congressmen, and voting against statist politicians. However, until those laws are repelled, I am obligated to pay my share of the taxes as a citizen of United States, regardless of how much I may disagree with the tax regimen.

For those people who really do earn a legitimate amount of their income overseas and feel they are getting unfairly taxed based on their citizenship, they always have the option of denouncing their citizenship: http://travel.state.gov/law/citizenship/citizenship_776.html

Democracy means you get to vote against the laws that you don't like, it does not mean you can disregard those laws at your personal discretion.
So what exactly do you disagree with? The amount you are paying? Or the fact that alot of it is for offensive military operations?  In Canada we pay more percentage but it is not used as evilly as I am aware. Move up north.

I already mentioned it twice in the post you quoted, but I'll say it again: collecting tax based on citizenship is wrong. It's just plain wrong for a country to tax someone who have never set foot on its soil.

IMHO taxes should only be used to fund defense and infrastructures and nothing else. Fighting 3 wars on the other side of the world is not defense as far as I am concerned.
636  Bitcoin / Bitcoin Discussion / Re: Incompetence, malfeasance, and fraud. Oh My! on: August 01, 2011, 01:37:09 AM
You can disregard immoral unethical laws.  You know that the vast majority of Americans were against the bank bailouts, but congress did it anyway?  And that the vast majority of Americans are against the illegal wars, but congress does it anyway?

People are welcome to participate in civil disobedience. It's a perfectly valid way to challenge the laws.

If someone was using a Nevis LLC for tax protest then they have bear all the consequences, for example random strangers on the internet calling them out for income tax fraud, because that's part of civil disobedience.


You have no voice in The System except as a milk cow from which they extract your substance.  Come on, man!  Grow some cajones and don't cooperate with an immoral system.
Rest assured I have the cajones to go against the system. The rest of my family don't, and they rely on me to put food on the table.

Between 200 million Americans evading taxes, and 200 million American voting for a constitutional amendment repelling the income tax, which one do you think will change the system?
637  Other / Off-topic / Re: The Bitcoin Dating thread!! on: August 01, 2011, 12:02:25 AM
I pity the woman who ends up with any of the misogynistic assholes in this thread.

I pity the woman who ends up with bigots who over-generalize about strangers.
638  Economy / Trading Discussion / Re: What are the safe options for Canadians to sell coins? on: July 31, 2011, 10:09:36 PM
https://www.cavirtex.com
639  Economy / Economics / Re: If the USA can't raise the debt ceiling in time what will happen to the price? on: July 31, 2011, 08:05:41 PM
Also, Title 31, sec. 5112, paragraph (k) of the U.S. code explicitly authorizes the Treasury department to issue as much money in the form of platinum coins as it wishes, at its discretion.  So, in a pinch, Geithner could always just stamp out a few platinum coins marked "ONE TRILLION DOLLARS" each, and make the debt problem go away.

(Source: http://www.law.cornell.edu/uscode/31/5112.html; some discussion at http://www.alternet.org/news/151718/there%27s_a_solution_to_the_debt_fight_that_could_avert_catastrophe_--_why_is_everyone_ignoring_it/)

How is that not a default?
640  Bitcoin / Mining / Re: max ammount of gpu's on: July 31, 2011, 05:12:42 AM
without the pci extenders the last pci slot can not be used since the card does not fit properly on the motherboard since it was not meant for a double width card.

Actually it's possible to use the last slot without extenders. I have 4 5850 on my 890fxa-gd70 as we speak. You just need a big enough case. 
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