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September 19, 2020, 01:19:02 PM *
News: Latest Bitcoin Core release: 0.20.0 [Torrent]
 
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1  Other / Meta / Re: Why did the forum stop supporting images from imgur's http links? on: September 16, 2020, 06:35:10 PM
The better question would be.. why does anybody use HTTP?
There is literally not a single reason to prefer HTTP over HTTPS. And there also wasn't a reason for this 3 years ago..

If you were browsing http sites 1 year ago, i highly recommend you to install HTTPS Everywhere. That's a browser extension which automatically uses HTTPS whenever possible.
Even though there are only very few sites left, which do not have HSTS enabled, it will generally help you and warn you if there is no HTTPS available.
2  Bitcoin / Bitcoin Technical Support / Re: Fees to high on: September 16, 2020, 06:26:38 PM
I got two Questions: 1) How many inputs are you trying to send? 2) What fee are you using?

If you indeed got that much inputs, the only way to consolidate is using a fee rate of 1 sat/B. If the fee is still way too high, you need to check the UTXO's and ignore the extremely small one.
But again, this depends on how many UTXO's we are talking about. A fee of 0.5 BTC is incredibly high.. i can't imagine you are trying to consolidate that many inputs.
3  Other / Meta / Re: sardasa account hacked yesterday on: September 16, 2020, 06:07:05 PM
The only way to continue now is use a new account as i advised you some months back

Until his account gets hacked again because his device is compromised  Tongue
A new account won't save OP from getting compromised. How often did it happen yet? 3 times? 4? I doubt this was the last time.
4  Local / Biete / Re: Amazon Bestellungen OHNE LIMIT mit -20% [TRUSTED] on: September 16, 2020, 06:05:34 PM
beim *bump* bzw. Update bitte immer die vorherigen Posts bereinigen.
Das wurde so in den Regeln definiert und ich bitte dich das einzuhalten.

Wird in anderen Threads in diesem Sub doch auch nicht eingehalten. Wieso dann hier?  Tongue
Ein Bump mit irgendeiner (mehr oder weniger nutzlosen9 Info ist ja auch immer noch ein Bump. Gibt aber genügend Threads hier, in denen der OP 10 mal hintereinander postet.
5  Bitcoin / Electrum / Re: Fake Electrum version 4.0 and hardware wallets on: September 16, 2020, 06:01:35 PM
Thanks for this guidance. Quick question: how do I move the transaction via flash drive or QR code to the airgapped computer?

You need to export/save the transaction instead of broadcasting it.
Then simply move that transaction (saved to file) via USB or scan it with a camera (QR).
On the other device, load the transaction via electrum, then sign/broadcast it.
6  Bitcoin / Mycelium / Re: Is there a Mycelium node? on: September 16, 2020, 05:57:12 PM
As long as you have your mnemonic code (the 12 words) and as long you are sure that this mnemonic is indeed the one from your mycelium wallet, you are fine.
Your funds are not lost.

As mentioned by nc50lc, you need to tell electrum which address type it should use. It has to match with the one of electrum.

If you can't figure it out after following nc50lc's tips, feel free to report with what you have tried, and what kind of addresses (starting character) you had in mycelium / electrum.
7  Bitcoin / Wallet software / Re: Wasabi Wallet 1.0 Is Released on: September 16, 2020, 05:52:50 PM
Aside from my skepticism since it's first time i heard about Chaincase, maximum 6 participant is worrying from privacy perspective.
The privacy could broke easily if majority participant is being stupid (e.g. combine multiple input from different source on a transaction).

Indeed. An anonymity set of 6 is ridiculously bad.
Even if no one is trying to break the privacy, it already is bad. And additionally the attacks are quite easy (e.g. majority inputs from the same user).

I'd definitely not recommend to rely on an anonymity set of 6.
8  Bitcoin / Development & Technical Discussion / Re: Help for someone new on: September 11, 2020, 06:07:30 PM
want to accept bitcoin what are top sites to join

http://manashost.com


Ye sure..

Code:
Domain Name: MANASHOST.COM
Registry Domain ID: 2550514742_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.syrahost.com
Registrar URL: http://www.crazydomains.com
Updated Date: 2020-08-30T18:27:12Z
Creation Date: 2020-08-03T00:00:00Z


I would recommend to not trust newbies advertising a completely new website.
Visit / use it at your own risk. You have been warned.

When using bitcoin services, stick to reputable and trusted ones.
9  Bitcoin / Development & Technical Discussion / Re: 6 confirmations questions on: September 11, 2020, 06:05:33 PM
If it takes 6 blockchain confirmations to confirm a transaction to the network and each confirmation is about 10 minutes,  how come sometimes When I  recieve bitcoin it came faster like 30 min or less?


A transaction is confirmed once it has been included into a block.
Each subsequent block adds 1 confirmation to that transaction. A bitcoin transaction is considered to be completely irreversible after 6 confirmations.
If you are dealing with lots of money, wait for 6 confirmations. For standard transactions or transactions with a lower amount (less than a few thousands), 1-3 confirmations are absolutely fine.

Regarding your second question.. the target (and therefore the difficulty) is chosen so that on average(!) there is a block each 10 minutes.
It is very well possible that we have 3 blocks within 10 minutes, or 2 blocks withon 60 minutes. After all it is pretty random, but the average will be ~10 minutes.
10  Other / Beginners & Help / Re: Eterbase Exchange Hacked, Don't Leave Your Funds on Any Exchange! on: September 11, 2020, 06:01:49 PM
I hope only a few people got burnt there.
There literally wasn't a single good reason to use that exchange over a well known and reputable one.

I wouldn't expect a relatively new exchange with less budget than the big player in this market to be even closely as secure as them.

Not using new exchange or exchanges which are known to be less secure, already reduces the risk of being a victim of such an incident.
11  Bitcoin / Wallet software / Re: 12-word recovery phrase - LOST. 2k who can help on: September 11, 2020, 04:11:29 PM
Unfortunately there is no way for you to get your coins back.
The system would be broken if it would be possible to simply bruteforce a seed storing BTC.

Since you already used your SSD and the chances of recovery are indeed extremely low, you are unfortunately out of luck.
Data recovery would be the only option if you are sure that you don't have a backup of your mnemonic code somwhere.
12  Bitcoin / Electrum / Re: 2fa account - rare problem on: September 11, 2020, 04:07:46 PM
That's actually an interesting question.

I don't know any case where someone asked for that.
There is nothing to be found on the website of trustedcoin (the co-signing company).

I guess the only way to transfer the credits (if possible at all), would be by contacting them directly: https://trustedcoin.com/#/contact-us
13  Local / Deutsch (German) / Re: Anbieter von Bitcoin Prepaid Kreditkarte on: September 11, 2020, 03:30:56 PM
Aber eins muss ich noch sagen: Jeder und alles meckert gegen Facebook usw.
Hier wissen die Jungs von Crypto.com aber genau wann du wo und wieviel gekauft hast. Ob bei Obi oder Aldi,Lidl in Oskardrück oder Oberhausen.

Das stimmt. Das ist natürlich was, was man immer im Gedächtnis haben sollte.
Durch KYC wissen die ja auch ganz genau wer du bist und wo du wohnst. Mit Privatsphäre ist da nicht mehr viel.
Aber das sind ja auch die Vorgaben für alle Banken etc.. Da kann man nicht viel machen.

Wer wert auf seine Privatsphäre legt und keine unnötigen Verbindungen herstellen möchte, immer schön BTC mixen  Wink
14  Bitcoin / Mycelium / Re: Is there a Mycelium node? on: September 11, 2020, 03:21:20 PM
I'm with ETFbitcoin here.
If you want to transfer funds from one wallet to another, you simply need to create a transaction.

I am not sure what you are trying to achieve. Moving funds? Just create a transaction.
Anything else? Like "moving" private keys? Or what exactly?
15  Bitcoin / Bitcoin Discussion / Re: Hackers Are Trying To Break Into This Bitcoin Wallet Holding $690 Million on: September 11, 2020, 02:58:16 PM
It can't be more silly. I think those people should not even be called as hackers since even an average bitcoin holder knows that brute forcing a wallet is a complete waste. If it were to be a real hackers then they would rather try finding and compromising the device on which the wallet was previously used and then decrypting the private key from the device.

You should read the OP more carefully.
It is not about bruteforcing private keys, but about bruteforcing the password of a wallet.dat file.

Those two things are completely different. Bruteforcing a private key is not feasible, yes indeed. But cracking a password can be possible. It purely depends on the strength of the password.



[...]
Or take for example the many sha256 hacked brain wallets.
[...]
But not impossible it just boils down to a combination of time energy hardware and luck.

Brain wallets are cracked because people are dumb and the entropy is low enough to be bruteforced.
There already have been quite some brain wallets emptied which were derived from the rockyou.txt password list (most used passwords).

Bruteforcing private keys is (and won't be) feasible.
16  Bitcoin / Electrum / Re: Fake Electrum version 4.0 and hardware wallets on: September 11, 2020, 02:49:39 PM
The authentic 3.1.1 did, so unless they went even older then that when creating the malware, they either cut the hardware wallet support out or just broke it by accident.

My guess would be that they simply took that part out of the code.
The malicious version creates and broadcasts a transaction as soon as possible. It wouldn't work with a hardware wallet, so i guess they simply ignored that and removed that part.

Just a guess tho.
17  Bitcoin / Development & Technical Discussion / Re: Where to get large amount of testnet coins? (~2.5BTC) on: September 11, 2020, 01:08:28 PM
Looking for 15-30 Testnet Bitcoin for a new application... Can anybody help us out? Happy to return some of the coins after a month and/or make a small donation.

There are people around here who lend out testnet coins for a small collateral.

But what do you need that many coins for?
You should be able to do all of your testing with less than 0.1 tBTC? Why do you need such a large amount?
18  Bitcoin / Hardware wallets / Re: A ransom attack on Trezor's and KeepKey's passphrase handling on: September 11, 2020, 09:02:13 AM
Makes you wonder if there is a way to set up some way that instead of using "off the shelf" software that they use a custom signed version. And then the hardware wallet checks the signature with a list of known good ones. And then the hw wallet sends a signature back that also has to be verified.

Sounds good in my head. Except for the fact that I just added a ton of more programming.  And you are more limited to wallet options.

What kind of software are you talking about? The firmware on the HW device or the software running on the PC?
I doubt they would allow other software to be patched onto the trezor.

And regarding the software on the PC, i doubt this would be feasible too. You'd need to evaluate what exactly is a "good" software. And you'd need to update the signatures quite frequently (i.e. after each update).
And for that, you'd need the user to actually start up the original trezor software again which would then transmit the new list (integrity-protected) to the HW device.
Sending a signature back from the HW device to the software isn't really necessary, since the computer can be compromised and a malicious version would not care about the signature and/or it could be spoofed.
19  Bitcoin / Bitcoin Technical Support / Re: Can not open wallet on: September 11, 2020, 08:53:27 AM
Backing up my Wallet is no longer an option because I cant open it.

Never do anything without a backup.
Please read the quote again:

Mate, make sure you make a backup of your wallet.dat before taking any actions.
Location will be: C:\Users\YourUserName\Appdata\Roaming\Bitcoin\wallet.dat

Your wallet (storage of your keys) can still be backed up, since it basically is a file on your computer.
Just copy the wallet.dat file in the above path to a save location (preferably not only on your pc).



I understood that I have to do -reindex.
But I do not know how.

I guess the easiest option is option #2 mentioned by mocacinno.

Based on your question, i assume you are using windows.
Right click on the shortcut -> properties -> add " -reindex" (with a leading space, without the quotes) in the "target" field at the end.

You want it to look like:
Code:
"C:\Path\to\bitcoin\core" -reindex

Obviously the path itself will be different on your system.
20  Other / Beginners & Help / Re: Emotet Warning: Japan France and New Zealand issued Bulletin on: September 10, 2020, 04:50:42 PM
[...] with windows you have to be careful on what you are downloading and the kind of anti virus and anti malware you are using.

You always have to be careful on what you are downloading and/or executing.
It's not like there is no malware for linux. Malware for linux (or mac) does exist. It is just that the majority of malware simply is written for windows since it has the largest user base.
Therefore, if you know what you are doing, indeed an AV is not needed. But common sense (i.e. not downloading and executing random stuff) is always required, regardless of the OS.
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