There shouldn't be any hardware dependency no. We bundle a Java runtime (except for Linux) to minimise the software dependency. Things like system clock time etc aren't used for the encryption. It would be interesting to see that wallet data to see if there are any clues to what went wrong. It does sound like a bug that is happening infrequently so it would be worth following up on. Bugs like that it is quite difficult to get good data on so your wallet would be quite useful. First thing to do: get your bitcoins out without disturbing the wallet by either using another machine or downloading Lighthouse ( https://www.vinumeris.com/lighthouse), use your wallet words to recover the wallet and then empty it. If you don't mind me seeing the wallet data the best thing for forensics would be a zip of the whole wallet directory that you send to me. I can then trawl through all the logs and backups etc. If you do this NEVER USE THAT WALLET again - it will be totally compromised as I will have seen it. You can see the wallet directory if you go into the Manage wallet | Wallet dashboard. Navigate to the directory then close down MultiBit HD (so that it writes everything out) and then zip the directory. Then pop it on somewhere like dropbox and email me at j i m 6 1 8 @ f a s t m a i l . c o . u k + the dropbox URL + your wallet words + your wallet password Just to repeat - never use this wallet again ! If you do not want to do this then a zip file of the log directory would be fairly useful (though not as good). It is in the same directory as where all the very long wallet directories are stored. The logs do contain transaction data but no notes or anything so contains less private info. If you aren't happy to send me either of these for privacy reasons I won't be able to find out anything more - that is totally your decision. I will give you the logs. I have not decided if i wish to completely change all my addresses, specially since i used some for signed message verification. But when i have decided i will let you know. Check your emails. |
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Got it. That's excellent information. So Coinbase isn't what I want. I'll research alternatives. Anyone using Darkwallet? I realize it too is quite risky at it's present stage, but just curious if anyone has experience with it.
OK, I'm going to back up a little. As suggested by kpitti, I'll stick with one question/topic at a time. Seems like a reasonable approach.
I have been using Coinbase since it seemed to be the easiest to use for people like myself, but I really don't feel secure with it - or any other exchange bc I don't understand the technology. I thought I was correct in trusting that my bitcoins were totally secure on a paper wallet, barring my losing it or letting someone get ahold of it or my key. But I'm not sure about that. For example, if Coinbase goes the way of Mt. Gox (some people lost everything gox was holding for them, right?), are my bitcoins lost to me for good? Or is the paper wallet (or equivalent, i.e. usb storage etc.) proof of my btc on the blockchain itself and therefore title to those bitcoins? I apologize if my understanding of all this is totally erroneous!
ps - I'm in the middle of Digital Gold right now, trying to get some sense of the evolution and terminology...
With coinbase, your bitcoin are not necessarily safe. Coinbase has control of your private keys, which means that they can also spend your Bitcoin. If they should scam, or be hacked, someone could spend your bitcoin for you and you would lose all of it. However, if you use a desktop wallet (or any wallet that is not a web wallet), then a paper wallet backup will be safe. Coinbase is insured for insider job and outside hacking. So just telling someone their BTC is at high risk at Coinbase is inappropriate. It cannot be as secure as a proper solo offline setup. But the second you decide to trust a 3rd party, Coinbase is probably the best; "Coinbase is insured against theft and hacking in an amount that exceeds the average value of bitcoin we hold in online storage at any given time. The insurance covers losses due to breaches in physical or cyber security, accidental loss, and employee theft. It doesn’t cover bitcoin lost or stolen as a result of an individual user’s negligence to maintain secure control over their login credentials." |
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With the halving coming up next year there's been a lot of speculation.
What are your thoughts about it?
It'll have a positive impact on the price, I have absolutely no doubt about that. Feel free to quote me. Done. And i totally agree. I think it will have a positive pressure on the price. It's just going to be very slow and as such people expecting for price to double overnight are going to have a nasty surprise. You can look at the price history at the first halving, if "you" do, "you" will be disappointed. |
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It just shows you the password.
Thank you. Knowing this, i setup a closed environment and then i revealed the password... and it seem my paranoia was for naught, it indeed seem to be the software bugging out. It display my real password, but still won't unlock with it. So i'll reiterate my initial question; Is there another factor for deencryption required, like time clock validation, hardware validation, dependency, etc? Because either something on my system is breaking Multibit HD or Multibit HD has a pretty interesting bug. |
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When you either set a password, or change a password, 2 things happen:
1) Your wallet is written to disk encrypted with the (new) password.
2) The (new) password is encrypted with an AES key that is derived from your wallet words and stored.
When you do a password recovery the item in number 2) is used. You enter the wallet words to reproduce the AES key and decrypt the bytes to get your password.
LOGICALLY it should be the same as the password used in number 1) but if someone else fiddled around with the wallet, or if it is damaged, it may not be IN REALITY.
Given a block of encrypted wallet bytes you cannot determine what the password is except with brute forcing. If you think about it would be rubbish security if you could as an attacker could do the same.
I'll rephrase. If i decrypt my password using recovery. Is it going to just let me see the password or just let me put a new one on? The only thing i want right now is see what the current password is. And i do have the keys to decrypt it, as you said. |
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also I inform you that paying bitcoins have a duty to save us or dispatch, or declare a low price for customs.
That would be nice, but Bitmain actually declare a fairly high value so this is not applicable to this situation or Bitmain in general. You can only do that when you do it user to user, not company delivering to end users. |
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If you do a restore on a second computer from your wallet words it doesn't say anything about the password you used on the first computer.
You can actually set a different password on the restored wallet if you like. It is used to encrypt the wallet where it is written out and does not go anywhere else.
I'm going to rephrase. Is there a way to display the password that is locking my wallet at the moment using my words? |
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@VirosaGITS
There are various things you can do to investigate further.
1) If you think your machine is compromised, go to another machine and:
a) Install either MultiBit HD or Lighthouse and recreate your wallet from your wallet words.
b) Empty your wallet to somewhere else.
By doing this then none of your bitcoins will be at risk.
2) You can recover your password from your wallet words using the Restore | "I have forgotten my password" option.
You need to use all your wallet words because the full entropy of the wallet words is used to encrypt your password when it is saved on disk.
If the password that is recovered is DIFFERENT to the one you have been using, then try using that one to unlock your wallet.
If it is the same, then it most likely that there is something wrong in the writing out of the wallets - this is done very carefully as outlined in other posts but nothing in life is perfect so if it is this we can have a further look at it.
3) You can recover your wallet from your wallet words on your first machine.
The whole point of us writing password recovery and wallet recovery is for them to be used when things go wrong. There is little point in us writing these recovery options if people do not use them.
@f3tus Most of the threads here (and in the MultiBit issues database) about forgotten passwords are to do with MultiBit Classic. Passwords are imperfect - people forget them at a rate of about 1 per 50,000 man months. There are LOTS of old MultiBit Classic wallets. (We've had over 1,500,000 downloads of MultiBit Classic over 4 years).
People are recommended to move them to MultiBit HD (or another wallet if they prefer) for various reasons, this being one of them.
We cannot make people to upgrade from Classic to HD - you have control over your bitcoins - but really people should be trying HD out and moving their bitcoins by now.
We have built in password recovery from wallet words directly in the UI of MultiBit HD. Or you can reconstruct your wallet from your wallet words and hence do not need your password.
But i do not want to recover my wallet until i know if my password was changed. If it was changed it mean a hacker of sort has access to my computer and entering my words would be an horrible idea. What i was asking is, if i restore the wallet on another computer, is it going to reveal the current password? I'm not trying to get access to my BTC back i'm trying to figure out what happened. |
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the prices will be doubled by bitcoin reward halving, as if not so then a lot of miners will quit mining due to ever increasing difficulty and halved earnings.
unless miners are making profit with a huge margin, which is probably the case, because they don't even need to roi on their HW anymore, and the new miners efficiency(s7) can help this alot The BTC price won't double. It barely moved the first time and it won't jump suddenly this time either. More information pointing to this is looking at the recent LTC halving. The pressure went up but the profitability did not come back.What this will do is kick off all the home miner that pays more than 0.05$/kWh and thats pretty much it. Everyone else will continue mining as if nothing happened. Some Very old gen miners are going to get scrapped, etc. LTC had pressure that pumped and dumped and the profitability stayed the same. From January 2015 to May 2015 the USD price was in the 1.80 - 1.40 range. After the dump and halving the USD price has settled around 3.00 The way I see it is that at minimum miners are back to what they were making in May. The reward halved and the price has settled at double the May price. The carrot on the stick is in the same place. I mine LTC, it is still not earning back what it used to. Before the halving it was 0.30-0.40BTC/Day/GH. After the halving it dropped to 0.15-0.13. And its 0.16 now. So my old Scrypt miner aren't doing very well and this i am trying to sell them. |
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I hear bankers saying we don't find bitcoin interesting , but we are interested in blockchain technology. Which I find a paradox...
Of course you don't like bitcoin because you lose the power to mint it yourselves. You would rather use blockchain technology and start an altcoin yourselves.
They don't want an altcoin, they just want to use blockchain technology for storing ledger information, verification, archiving, authentication/validating signatures. An altcoin is pointless to them. The Coin is just one possible application of this great technology. |
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the prices will be doubled by bitcoin reward halving, as if not so then a lot of miners will quit mining due to ever increasing difficulty and halved earnings.
unless miners are making profit with a huge margin, which is probably the case, because they don't even need to roi on their HW anymore, and the new miners efficiency(s7) can help this alot The BTC price won't double. It barely moved the first time and it won't jump suddenly this time either. More information pointing to this is looking at the recent LTC halving. The pressure went up but the profitability did not come back. What this will do is kick off all the home miner that pays more than 0.05$/kWh and thats pretty much it. Everyone else will continue mining as if nothing happened. Some Very old gen miners are going to get scrapped, etc. |
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Someone mentioned they void your warrantly on the S7 if you don't plug cables into all 3 jacks, which is funny because it's a 1200W machine that "requires" 10 cables to run but their 1600W PSU on gives you 8 (and that 18AWG). Double standard much?
About a year, year and a half ago Bitmain was taking enough flak from everyone that they actively worked on improving customer service and warranty fulfillment. It looks a lot like they either stopped caring or decided it wasn't a worthy investment.
I'm guessing they realized people will buy their stuff regardless because they are just starved that much. Bitmain's communication at the moment seem slow and poor and their customer service is horrible on RMA. And having to ship back is expensive and really not what one would expect of a warranty. |
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I think this is like the 4th thread about the password not working... But at least you have the words to regenerate it.
I will not until i know what the issue is. If its a vulnerability with MultiBIt and i've been compromised i cant risk it. And if i have not been compromised and its just a bug in Multibit HD software, i need to know first as well. Once fixed i would restore my wallet. But only if i have a 100% garantee that my BTC is sade. |
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Did newegg.ca accept BTC ? Or I need to purchase a gift card first ?
You can pay strait BTC at checkout at Newegg and tigerdirect. Those are the two i use anyways. Hence a good option if you get tired of waiting. You will have 250w less per unit but 7yr warranty for about the same price. |
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Offering 0.5BTC for 1300W + Shipping to Canada  I got tired of waiting so i got a 1050W GS instead it cost me 208CAD shipped with premier. That's close to what you're offering so maybe that would be a consideration for you. You would get 7 years warranty. |
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Well, are you betting gold will double in value in the next few years? I think gold is a good store of value, but unless a gold shortage happen, the value will most not likely raise by all that much.
If BTC goes up to only 400$, then that is a great investment to make right now. But if you wish for physical good that will merely retain their value, then gold/silver and toilet paper it is.
Like I said earlier, gold is not just a commodity for me that just have a value but we also have jewelry made of gold and that's worth much more than the bitcoins I hold in a wallet. I am almost 100% sure that Gold being used for the past 100 years will continue to hold value for another 100 years but will Bitcoins be able to survive so long? It would make me look delusional if I say that bitcoins would last for so long. About doubling the price, it's just a guess that the price would be $400 after 2-3 years but if we take into account the price in 2013, now the price is 25% the value it was then. If the price does reach $400, it would still be a loss for those who bought bitcoins when it was worth $1000. On the other hand, the price of gold has not reached -75% of its amount in 2013 (1 kg is now worth $38,532 and the percentage difference in 2 years is -10% approximately) . The price is stable which matters a lot while we decide what's preferred Gold or Bitcoins. Which is fine, like i said, Gold is a good store of value. But unlike BTC, its not a risk investment that can raise in value greatly. Yes it can also drop in value. The price volatility is good for making money, but it is not a good store of value. So go ahead with Gold if you want to store value not using volatile currency like USD and BTC. And hold BTC if you're willing to risk your money hoping that BTC succeed. |
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Hi All, thank you for your suggestions. I only have one window and I do have a small exhaust port in the back. I will be heading to home depot to find some duct to connect to the exhaust port and push the hot air out through it.
During winter, i'd recommend pushing the air through your air ducts if you have centralized heating system like a furnace. If not maybe just let the air trickle up. This way you save on heating = more profits. |
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I absolutely and definitively did *not* forget my password and it no longer unlock my wallet.
I left it on for a while and when i went to send a transaction, it of course ask the password again before sending the BTC, but at this point it tell me the password did not unlock the wallet.
I then closed the wallet and restarted the computer and now i cannot load up the wallet since the password is still invalid.
Is there something that can cause the right password to become invalid for no reason such as computer being set to wrong time, etc?
Have you looked at address of coins online? I would verify coins are there and it was not compromised. As far as password not working no it should not happen. Here is FAQ about passwords - https://multibit.org/en/help/v0.5/help_lostOrForgottenPassword.html. Do you have the private key saved somewhere else? paperwallet or just private key on usb, etc? I of course have the words to regenerate the wallet. But i am not willing to use them before i know whats happened. I doubt i have been compromised but i can't be certain. If there would be a way to display the password using the recovery options, this would be nice, using a few of the words. Then i could know if it was changed or if its just the software bugging out. You can be pretty certain by looking up your BTC address you use on a block explorer such as blockchain. You look to see if BTC is still in address or gone. When you check is there still BTC in address? I had just moved most of my funds so i don't have much BTC left, but its still there. I sent a transaction, then went to bed, got up, wallet still opened, try to send a small transaction and bam, password no longer unlock wallet. I been using this wallet for a while now and i absolutely cannot possibly have forgot my password and its not a silly thing like a capitalised letter or a keyboard's key working unproperly since i can see the password typed down and it is without a doubt correctly entered. |
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I absolutely and definitively did *not* forget my password and it no longer unlock my wallet.
I left it on for a while and when i went to send a transaction, it of course ask the password again before sending the BTC, but at this point it tell me the password did not unlock the wallet.
I then closed the wallet and restarted the computer and now i cannot load up the wallet since the password is still invalid.
Is there something that can cause the right password to become invalid for no reason such as computer being set to wrong time, etc?
Have you looked at address of coins online? I would verify coins are there and it was not compromised. As far as password not working no it should not happen. Here is FAQ about passwords - https://multibit.org/en/help/v0.5/help_lostOrForgottenPassword.html. Do you have the private key saved somewhere else? paperwallet or just private key on usb, etc? I of course have the words to regenerate the wallet. But i am not willing to use them before i know whats happened. I doubt i have been compromised but i can't be certain. If there would be a way to display the password using the recovery options, this would be nice, using a few of the words. Then i could know if it was changed or if its just the software bugging out. |
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