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1  Bitcoin / Development & Technical Discussion / Forgotten wallet password: Is there a regex brute force program? on: September 27, 2021, 05:22:50 PM
Hi y'all! A friend has forgotten his password, already several years back before mnemonic backups, and the bitcoins are now worth quite something. He has some idea of what it might be, but it's millions of possible combinations, impossible for him to try sequentially, but trivial for a computer to process if the right regex pattern could be supplied given some knowledge of parts of the password.

Is there such a brute force program that could be used to try a regex against a wallet.dat file?
2  Bitcoin / Bitcoin Discussion / What prevents one large player from buying up most coins? on: June 23, 2016, 05:08:44 PM
Say an interested party has 10 times Bitcoin's market cap to spend. He buys up the entire order book on the largest exchanges. Once he holds a significant percentage of all bitcoins, he waits for some kind of negative news, then dumps, causing panic sells, which he buys up at the bottom. He repeats this pattern until he owns as many bitcoins as HODLers allow.

How would this affect adoption and confidence in the market? Is there anything that would or could prevent this from happening, aside from the amount of fiat money required?
3  Bitcoin / Bitcoin Discussion / Analysis and list of top big blocks shills (XT #REKT ignorers) on: January 07, 2016, 06:24:00 PM
Just for the fun of it and for the sake of curiosity, let's compile the (seemingly unmistakable) evidence of shillery. The nature of some of the posters who inexplicably blindly support clearly-unsafe big blocks (8MB?? Unlimited?Huh), whether XT or BU (anything other than Core), in complete disregard for not only contrary evidence but plain facts, makes it very difficult to imagine that they could somehow be clueless fanboys with permanent blinders on and a penchant for absurd levels of sophistry...

From now on, if I may suggest, let's log/save/harvest/compile the strongest cases of inexplicable irrationality by the (suspected) shills, so that we can eventually make a crystal clear case for this idea that there are actually people employed by a group whose goal it is to destroy Bitcoin.

For now, dump your evidence and/or observations (or even just the case you feel showcases the most obvious shilling) in this thread! Preferrably concisely summarized, though the more detailed and hyperlinked the better.

To my mind, the most obvious case is VeritasSapere. What is the probability that this guy is not employed full-time by a group whose goal it is to destroy Bitcoin? The username itself seems like a clue.
4  Bitcoin / Hardware / Mining Hardware Company Dishonesty Ranking on: October 15, 2014, 01:39:36 PM
For those following the mining hardware development and the fall from grace of KnC, etc, can we get a picture of where honesty remains, if indeed there remains any? Post your impression of "most to least honest mining hardware company".

Butterfly Labs is probably gonna be at the bottom, but I'm curious as to where KnC and AMT would rank.



5  Other / Politics & Society / Message to the voting cattle on: August 10, 2014, 03:42:06 PM
The Complete and Undeniable Truth - Larken Rose

Can you handle it? (if you are a true believer, probably not)

(see also: What anarchy isn't)
6  Other / Politics & Society / What anarchy isn't on: August 06, 2014, 07:59:19 PM
https://www.youtube.com/watch?v=xMoPBDz5ycA
7  Bitcoin / Bitcoin Discussion / Coins unspendable until a particular date? on: August 06, 2014, 04:13:21 PM
Say I promise 1 BTC in address X be sent to a recipient at date Y. The recipient is not yet known, but will be one of array(Z). Is there any way to create a cryptographic proof of the promise? In other words, a way to guarantee that the 1 BTC is not spent before date Y and is not sent to any address other than one in array(Z).
8  Economy / Service Discussion / MtGox found remaining ~670,000 BTC?? on: March 25, 2014, 06:28:49 PM
A blog post about it: http://theblogchain.com/news/mtgox-found-bitcoin/

The original tweet: https://twitter.com/CanarslanEren/status/448418452701974528
9  Economy / Service Discussion / Some interesting/odd MtGox accounts statistics on: March 12, 2014, 08:19:54 PM
According to the 'Stamp' (timestamp) column in the mtgox_balances file, no less than 25% of accounts with over 100 BTC were left untouched after 7 Feb 2014 (the day withdrawals were suspended). More specifically:

  • 361 out of 1434 (25%) accounts with ≥ 100 BTC remained untouched (total untouched balance: 204,801 BTC, out of 682,094 BTC)

of which:

  • 24 out of 104 (23%) are accounts with ≥ 1000 BTC (total untouched balance: 125,590 BTC, out of 348,686 BTC)

If we assume that 'Stamp' means 'last balance change', that means that 1/4th of people with large sums decided not to do anything (neither trading fiat for BTC at bargain prices or using BitcoinBuilder).

It also seems odd that of the top 5 balances, all over 10,000 BTC, 3 of them didn't do anything either:

Code:
| User_Wallet__                        | User__                               | Currency__ | Balance       | Liabilities | Index   | Backend | Daily_Withdraw_Limit | Monthly_Withdraw_Limit | Disable_Limits | Stamp               |
+--------------------------------------+--------------------------------------+------------+---------------+-------------+---------+---------+----------------------+------------------------+----------------+---------------------+
| 5c05557d-8d1e-4e2a-9a24-21781413be32 | 711a4e9d-e183-4bec-a390-340918326538 | BTC        | 4454767562508 |           0 |  156624 | virtual |                    0 |                   NULL | N              | 2012-07-13 06:58:01 |
| a6acd802-bb4f-412b-be6d-b0bf3f2bb055 | 34fcda44-5832-48c3-8beb-60f1bd9fef37 | BTC        | 4376817697344 |           0 |   42208 | virtual |        2000000000000 |                   NULL | N              | 2014-02-25 03:53:01 |
| 221d365a-ce33-4619-a8fb-f79514940bb1 | c0b24126-f199-4cc6-83fc-c96f2bcb9381 | BTC        | 1998500000000 |           0 |       4 | virtual |                    0 |                   NULL | N              | 2012-08-11 10:30:00 |
| 2ae40a68-c862-4fd3-8ebc-a05a7e0fbfac | 92d047e9-9f2b-4dd0-9163-077db3e56dd0 | BTC        | 1150063956592 |           0 |     253 | virtual |                 NULL |                   NULL | N              | 2013-11-26 02:35:25 |
| 1ad3f250-17dc-4d3d-9aff-15f3ed40cec9 | ff84fc35-b22a-492d-b8f2-5fb79be170a7 | BTC        | 1100781000685 |           0 |    3941 | virtual |                 NULL |                   NULL | N              | 2014-02-20 22:30:51 |

The 3rd one has an 'Index' of 4, which might mean that this is a MtGox insider account (with exactly 19,985 BTC).

10  Alternate cryptocurrencies / Altcoin Discussion / Wallet stealer in MouseCoin-qt.exe on: March 12, 2014, 06:35:45 PM
A friend of mine who mines scrypt coins, but who otherwise isn't that geeky, discovered an oddly named hidden .zip file in his C: root directory (2014年2月13日18时45分.zip - he doesn't have cyrillic script installed). In it are contained the wallet.dat files for all his cryptocoins (renamed to Bitcoin.dat, Litecoin.dat, etc).

Checking the file's last modified date and looking at the Prefetch directory, I determined that this file was created after running mousecoin-qt.exe or Mouse.exe (contained in the downloaded MouseCoin-Qt1.0.0.0_Win.rar). He downloaded that from the official site on 13 Feb 2014, linked to from the Bitcointalk announcement thread. When opened, mousecoin-qt.exe generates a hidden VBS file (tem.vbs), but this file in itself is innocent, cointaining just these four lines:

Code:
 Dim fso
  Set fso = CreateObject("Scripting.FileSystemObject")
  fso.DeleteFile("C:\Program Files\MouseCoin-Qt1.0.0.0_Win\mousecoin-qt.exe")
  fso.DeleteFile("C:\Program Files\MouseCoin-Qt1.0.0.0_Win\tem.vbs")

So the wallet-stealing code is contained in mousecoin-qt.exe itself, and the VBS file is used to delete itself. I haven't gone so far as to check where the .zip file with the wallets is sent, but if anyone is interested let me know.

As of today, the "official" MouseCoin sites (mousecoin.net and mouseco.in) return a 404, and the announcement thread has been renamed to "[ANN]New Coin MouseCoin ,yep,i m Jerry !", and some Russian users appear to have posted over the last several weeks for the purpose of bumping the thread.

TL;DR: MouseCoin steals all your cryptocoin wallets! Had my friend not password-protected his wallets, they'd have all been wiped instantaneously.
11  Bitcoin / Bitcoin Discussion / BTC vs. XBT on: March 11, 2014, 10:31:08 PM
The XBT initialism places Bitcoin on the same list as the government-backed fiat currencies, by conforming to the ISO 4217 standard (X__ is reserved for non-government-backed currencies, e.g. XAU for gold). So using XBT instead of BTC is to tacitly place Bitcoin within the system that cryptocurrencies are in the process of obsoleting.

Using XBT would also mean that altcoins must also conform to ISO 4217, so Litecoin might be XLT or XLC. Can you imagine all cryptocurrency symbols starting with an X? Terrible idea. This would also limit the number of cryptocoin symbols to about 660 (26^2-16).

So why do some people use XBT over BTC? What's the reasoning?
12  Economy / Service Discussion / What did you do when MtGox halted withdrawals? on: March 11, 2014, 02:53:55 PM
Even after the Crisis Strategy Draft leak, I didn't use BitcoinBuilder because I couldn't imagine a company being THAT incompetent and irresponsible. Even in an unregulated market with a 28-year-old CEO.
13  Economy / Service Discussion / Poll: Cause of MtGox missing funds? on: March 03, 2014, 07:52:00 PM
Vote for up to 3 causal factors you find most probable. But please vote with your head, not your fist. We're all angry at MtGox and Karpeles, but making assumptions based on that anger is not useful. To assume Karpeles is trying to steal the coins is silly if the other possibilities are more probable.

Theft by insiders seems unlikely, given the slim chances of getting away with it. Continue to expand your business as one of the leading Bitcoin exchanges, or attempt to rob all your customers in the hopes of maybe, possibly, with a stroke of luck, eventually get to cash out the coins without getting into too much legal trouble or too much stress from the predictable death threats? Tough choice! Although this guy thinks this is the most probable by elimination.

We know that incompetence is involved to a great degree, regardless of which scenario is correct, but 750,000 BTC suddenly unaccounted for just after finishing the business expansion plans for Europe? Incompetence alone seems extremely unlikely.

MtGox has a long history of incompetence, and the US Government has a long history of major thefts and the motives to hurt Bitcoin. That's why my votes go to "incompetence" and "theft by third party".

It could also be a combination of things (one problem compounding another), for example, as proposed by ninjarobot, "a combination of factors including mismanagement, theft (malleability), price manipulation and government intervention."
14  Economy / Service Discussion / Karpeles sent an email to Reuters, Feb 25th on: February 25, 2014, 03:05:19 PM
http://www.reuters.com/article/2014/02/25/bitcoin-mtgox-ceo-idUSL1N0LU12G20140225

article posted 9:39am EST [2pm UTC, 1h ago].

Quote from: Mark Karpeles
"We should have an official announcement ready soon-ish. We are currently at a turning point for the business. I can't tell much more for now as this also involves other parties."

If "as soon as possible" means 4-8 weeks at MtGox, what does "soon-ish" mean?
15  Bitcoin / Bitcoin Discussion / Shrem's kidnapping reveals slavish mindset of "public Bitcoin figures" on: February 05, 2014, 04:32:49 PM
As Rick Falkvinge points out:

Quote
It becomes increasingly clear that the arrest of BitInstant CEO Charlie Shrem is a harassment arrest, intended to spread chilling effects, an arrest that has no judicial basis whatsoever but to demonstrate wielding of power by a repressive police system.

Indeed, this is a KIDNAPPING, not an arrest.

The funny thing is that even IF it were a genuine money laundering charge, Shrem would still be morally innocent, because the money was (allegedly) used to buy drugs, not to steal or murder or otherwise cause harm to someone.

If some guy in a suit who calls himself a "lawmaker" writes on a piece of paper that it is "unlawful" to eat chicken, and you are "caught" eating chicken and forcibly taken away from your home -- would you call that an "arrest" or a kidnapping?

Nobody is harmed by you eating chicken. Nobody was harmed by what Charlie Shrem is alleged to have done by people believing themselves to be "authority." If we assume the charges against Sherm are true, who exactly was harmed? The answer is obviously nobody.

(The charges are: one count of conspiring to commit money laundering, one count of operating an unlicensed money transmitting business, and one count of wilfully failing to file a suspicious activity report.)

As much as I like CoinDesk, they ran an article by a clueless/spineless Daniel Cawrey, who writes:

Quote
The reality is, it is Shrem抯 alleged negligence, not the government抯 actions, that got him into his current precarious position.

Really? So if I tell you that I'm the authority and you have to do as I say but you don't, and I then kidnap (arrest) you, it's your negligence, not my actions, that got you into such a precarious position? Who exactly grants me or people who say they are "the government" such "authority"? Cawrey hints at the answer a bit longer down the article:

"The [Bank Secrecy Act] gives FinCEN the authority under the auspices of the US Treasury to 揹etermine emerging trends and methods in money laundering and other financial crimes, according to the FinCEN website." - Oh, so a piece of paper, entitled Bank Secrecy Act, written by some self-serving "lawmakers," is what gives some people the right to initiate violent action against people who don't have that right. I see.

Cawrey continues:

Quote
Bitcoin has a long way to go to reach credibility to a mainstream audience. As a result, Shrem抯 alleged crimes are a detriment to everyone who is trying to build positive rapport within the cryptocurrency space.

The detriment is the slavish behavior too many in the community are displaying, as exemplified by this journalistic travesty by Cawrey. If all it takes is an accusation of some abstract victimless "crime" to take down one of our own, then we have already lost. You might as well sell all your bitcoins right now for some safe dollars. As a commenter to that article points out:

Quote
Extreme wrongdoing? Which part? The part where people are voluntarily and knowingly trading substances (which may or may not be mind-altering -- like thousands of products and drugs you can buy at your local pharmacy)? Or the part where people were smoking dope?

Or wait, the worst part -- the "extreme wrongdoing" -- is the guy who traded one currency unit for another currency unit to avoid being caught in the other aforementioned "wrongdoing"... Those are the bastards we gotta worry about!

This FUD subscribes to the same status-quo load of crap, all of the State's made-up, phony "crimes". Viewed by their "laws," everyone's doing something "illegal" everyday, and anyone the "authorities" don't like will be found to have mud on his shoes and be accused of "extreme wrongdoing".

We may have to live in a world (for the time being) where people continue to believe in witches, but (luckily) we don't have to pretend to believe in witches with them.

Exactly. Continue to believe in witches if you'd like, but the simple and obvious truth is that a man, innocent of any moral wrong-doing, has been unjustly kidnapped and is being threatened with 25 years in a cage. The fact that the people responsible call themselves "government" has no bearing on the facts. If it was the Mafia doing it nobody would find it acceptable.

As another commenter points out:

Quote
Shrem made the mistake of trying to have a business in America. The America Land of the Free as we once knew it is gone. Having any business in the United States today is risky if not an outright stupid endeavor. There are thousands of government workers getting paid to shut you down, harrass you, spy on you, bankrupt you, and lock you in a cage.

The Winklevoss twins, who invested in Shrem's BitInstant, had this to say upon learning of Shrem's arrest:

Quote
We were passive investors in BitInstant and will do everything we can to help law enforcement officials. We fully support any and all governmental efforts to ensure that money laundering requirements are enforced, and look forward to clearer regulation being implemented on the purchase and sale of bitcoins.

It's one thing to state "we have no connection to Sherm's alleged illegal activities" but it's another to unthinkingly pander to the oppressor.

Should the public faces of Bitcoin be opportunists who worship at the altar of the state? I don't think so. Bitcoin is the most disruptive technology of our time, more disruptive than the Internet, as Andreas Antonopoulos and Stefan Molyneux eloquently explain from differing perspectives. It's people like these who should be the public faces of Bitcoin, not unthinking, cowardly, profit-driven weasels who support oppression if under the umbrella of "government."

The Bitcoin Foundation, a group that ostensibly aims to represent the interests of the Bitcoin community, offers no comment on the facts of the matter, choosing instead to distance itself from its now former member, implicitly making the ridiculous assumption that this kidnapping of one of their members has nothing to do with an attack on Bitcoin.

They -- the control freaks who believe they have authority over other people (exclusive rights) -- are obviously paying a lot more attention to Bitcoin now, this kidnapping happening about the same time as the NY hearings and Gavin's CFR meeting. What all thinking people of conscience should be doing is vocally supporting Shrem, not assuming he's "guilty as charged" and a "bad apple" in the Bitcoin community. If we blindly accept the oppressive "laws" of the system whose greatest threat is cryptocurrencies, rather than guide ourselves by morality and natural law, then they have a chance of destroying/controlling Bitcoin. If we unthinkingly act this way, then it's only a matter of time before they kidnap the next top Bitcoin person.

As Falkvinge says:

Quote
This is a harassment arrest apparently intended to intimidate and associate 揵itcoin, 搒ilk road, 揹rugs, and 搈oney laundering with each other, and the community should take exactly none of this nonsense and this repression. At this point, it抯 important to stand up for the bitcoin community and for Shrem against a harassment arrest.

If we don't stand up for Shrem, we are complete idiots waiting for the next blow.
16  Bitcoin / Bitcoin Discussion / Bitcoin for Birthdays Project on: January 14, 2014, 11:08:58 PM
Someone's birthday coming up and you have nothing specific for them?

If he/she is minimally computer-savvy, set up an account on an exchange, fund it with 1 BTC (0.x just doesn't look that good!), and hand them the URL, username and password as a gift (along with an explanation, of course).

Present it as a riddle, if you think that'll work best. For children this seems like the way to go.

Explain that the purpose, the real gift, is to get them to learn about the future of currency/money.

Some might read enough to decide not to cash out right away, thus becoming one of us! Cheesy

If anyone pulls this off, please post about it here!
17  Bitcoin / Bitcoin Discussion / How to get your non-tech-savvy friends/relatives into Bitcoin on: January 13, 2014, 06:03:01 PM
Here's what I do:

If he/she hasn't heard about Bitcoin or its recent price spike, I send them the 1-year daily price candlestick chart. I often get back the question "how do I buy bitcoins?"

Then I suggest setting up an account at an exchange and offer to send him/her 1 BTC to play with. For many people this is incentive enough to get into Bitcoin.

(Yes, for free, why not? If you're an early adopter, think of 1 BTC being worth what you bought it for, say $20, rather than its current price. You can of course offer 0.5 or any other number that you think will incentivise your friend/relative.)

You can probably classify most of your friends/relatives as "non-tech-savvy", but you can further divide that category into "some computer understanding" and "clueless", because obviously there's a lower limit of knowledge required to use Bitcoin. The person must be able to operate a computer to some extent. So how to know if your friend/relative is tech-savvy enough? One way I use is to ask them if they know the website address for Facebook. If a person doesn't know that "facebook.com" is the website address for Facebook, I just move on to the next person. Thanks to the dumbing-down efforts of Microsoft et al, it seems like over 50% of Facebook users just type "facebook" into the browser address bar or search bar, not understanding or even knowing about the concept of a website address/URL.
18  Bitcoin / Bitcoin Discussion / What would happen if ISPs start blocking cryptocurrency data? on: December 30, 2013, 04:40:39 PM
Say the USG calls an "emergency" meeting with the UNSC and they all agree that Bitcoin and cryptocurrencies are now the "largest threat to the world economy"... They adopt as a UN Resolution the American proposal "Anti-Counterfeiting Measures Emergency Act of 2014". So each member nation-state has to legally "force" ISPs to "log and discard" all packets that match certain strings.

What happens then? Would it be the end of Bitcoin? The end of cryptocurrencies? What's the response of the Bitcoin dev team?



edit:

Got this idea from monsterer:

That's the whole POINT of bitcoin.  Once the network gets big enough, they won't have the *ability* to decide to "allow" it or not.  They don't "allow" pirating or The Pirate Bay, and of course nobody pirates any more and the Pirate Bay website has been shut down for good.

This is a fundamental fallacy shared by many bitcoiners. Governments can easily 'not allow' bitcoin (for all intents and purposes) by simply passing a new law saying any ISP relaying bitcoin related traffic will be shut down.

That move alone vastly reduces the number of miners and nodes probably to the point where a 51% attack becomes easy, and the currency crumbles.

Don't get me wrong, I'm extremely positive about bitcoin but you have to understand how vunerable it is.

Cheers, Paul.
19  Other / Beginners & Help / Trusting anonymously-run exchanges on: December 10, 2013, 05:02:55 PM
Has anyone compiled a list of cryptocoin exchanges whose owners are anonymous? If I understand correctly, the Russian folks behind BTC-E are still anonymous, yet they are about the 4th biggest exchange.

After so many scams and alleged hackings, how can anyone trust anonymous exchanges?

I can see the reason for remaining anonymous if you're running a site like Silk Road, but what possible reason is there for the operators of an exchange to not reveal their identities (thus building greater trust, hence increasing their market share & profit)?
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