About keyloggers: why don't you implement a visual (mouse clicking) access check?
Movements of mouse or clicks can also be recorded. However, you can reduce it by using a scrambled virtual keyboard. But still, most users prefer to use their keyboards. Note that, ThomasV has explicitly mentioned that portable build is not dangerous by itself. It is just like other builds but it encourages dangerous behaviour. -snip-
It is not safe to use a portable version of Electrum on an insecure computer!
Don't get me wrong: I am not saying that a portable build is by itself more dangerous than a non-portable version.
-snip-
In addition, portable builds encourage dangerous behaviour, because they make it very easy to use your wallet on third party computers, that might be infected with viruses and keyloggers.
-snip-
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From an EC point of view, you have one private key with one corresponding public key.
The problem is, public keys can be serialized in two ways - compressed (33 bytes) or uncompressed (65 bytes). One is slightly harder to deal with, but as storage space is more critical in Bitcoin, we prefer to use the compressed one. Thus, we now have one private key that corresponds to (from Bitcoin's point of view, as we deal with the serialized versions) two public keys. Each of these public keys has an address (as the hash is calculated from the serialized public key). So, 1 private key, 2 public keys, 2 addresses.
So when you want to import a private key, the software has to know which of the public keys (with corresponding address) should be used. The solution is to add a flag bit to the base58 encoding of the private key, notifying the importer whether or not to use the compressed public keys. Typically, these get called compressed and uncompressed private keys - but it's really just a bit saying whether the corresponding public key is compressed or not.
The only reason not to use a compressed public key is that not all software supports it (they were introduced in Bitcoind/Bitcoin-Qt 0.6 only).
-snip-
* Bolding is my courtesy. |
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ASIC Chip: 20 CloudThink NanoHash Chips
Operating Sytem: Linux.
Mobile Access: Via CloudThink App
Did not get these two? Care to explain?
I don't understand your question. I only asked about two things at first and then I added one more. That's why, there is a miscount. Can you please explain more about 20 CloudThink NanoHash Chips and about mobile access? |
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User "amaclin" is running a bot. He is already running a bot for sweeping Bitcoins from addresses he bought and from addresses whose private keys were leaked. There are dozens of bots which monitor these addresses. I know. I just added you into one of "them". |
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ASIC Chip: 20 CloudThink NanoHash Chips
Operating Sytem: Linux.
Mobile Access: Via CloudThink App
Did not get these two? Care to explain?
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There are bots to transfer coins as soon as they are deposited!  Just see the time frame...2 BTC deposited and withdrawn within a second  User "amaclin" is running a bot. He is already running a bot for sweeping Bitcoins from addresses he bought and from addresses whose private keys were leaked. |
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I have not received 2x 500 Flipkart vouchers. I ordered three vouchers yesterday and I only received one. Please fix internal problems(if any)!
Hi Muhammed Zakir You should receive an email from support team in next few minutes. Regards Thank you! Resolved. |
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Well i did look around but i thought that card issuing link will appear after the deposit. Still, no worries. Thanks for the help.
Sorry about that. We are about to add the FAQ section to our site where this and many other questions will be covered. Just a last question. Since the verification is not required. Can i use a vpn to open a new account and get a card? They won't ship to India. You will have to ship to another country and then forward it to your address. |
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SellingSenior is saying he sold the account, however the password was only changed for two times, I changed first and the next time, SellingSenior or new buyer changed password but as the password was changed in a short period, I doubt a sale has taken place. If SellingSenior could provide a valid txid, messages and prove the password was changed by the new buyer, then, I will remove the negative feedback or it will be removed if I am wrong. 18:54:42 | 25/07/2015 - The Bad Guy - password changed -- Escrow(me) changed.
-snip-
19:14:14 | 25/07/2015 - The Bad Guy - password changed -- Buyer(SellingSenior) changed.
 Thoughts? |
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I need to create a 2 of 2 multisig address to increase the trust level of my project. Project details -- https://bitcointalk.org/index.php?topic=1133407I need you escrow in this, only once in a week. Can you help in this, and act as a trusted party in the project's proposed multisig address ? I can not! |
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I am resigning from this campaign. I lost access to my Bit-x account. They told me I should contact Marco, which I did. This was a week ago with no response. I like this campaign and Bit-x. But I do not see the point of continue if I will never be able to access the BTC I earn. Thanks all and I wish you good luck.
You should contact support, not Marco. They will be able to help you fast. Did you link an email address? If you are able to access it again, try using Google 2FA and backup secret code you got from BIT-X. Yes, I have 4 tickets with Bit-x support, their final response was to contact Marco, maybe to try to verify my Bitcointalk account because the only deposits on Bit-x were from this campaign and there has never been a withdrawal. I never had made any recovery questions, and did not know my phone would be needed to sign in. I never logged in until after I had my phone number disconnected. I have been trying all week to get this fixed and no one is responding to me. It is my own fault and I understand that, but I do not want to stay in a promotion that I will never be able to access the funds from. Create a new BIT-X account and replace your current BIT-X address in your profile with new address? |
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Your account is not worth $1. Any other collateral?
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Provided an escrow for us for a trade. It went smoothly. Recommended ++
Then proceeded to publish all the information regarding the trade assuming that the account is still under my ownership. While any private information is forfeit in case of a scam, the escrow should've informed me to avoid any mistake before doing so. I will not be using him as escrow in future and suggest others avoid too. The trade went smoothly, but his subsequent poor judgementt in trying to show the community that he is an useful member makes him an unreliable escrow. So he escrowed an account sale then published the account name? What he said is not true. I mentioned his name, price and to avoid privacy problem, I only mentioned the site which owned that address but not the address. I think this is standard thing here. If not, please correct me. -snip-
On SellingSenior's feedback it looks like MZ left a feedback saying that he's an alt of "The Bad Guy" so I'm guessing that The Bad Guy account was sold by SellingSenior, and made publicly by MZ afterwards.
No. SellingSenior was the buyer. You can see my post here -- https://bitcointalk.org/index.php?topic=1136500.msg12008480#msg12008480. |
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I am resigning from this campaign. I lost access to my Bit-x account. They told me I should contact Marco, which I did. This was a week ago with no response. I like this campaign and Bit-x. But I do not see the point of continue if I will never be able to access the BTC I earn. Thanks all and I wish you good luck.
You should contact support, not Marco. They will be able to help you fast. Did you link an email address? If you are able to access it again, try using Google 2FA and backup secret code you got from BIT-X. |
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-snip-
Can you confirm the address 1GiCrkr2QDFSMVAxFCVoJaEVoq6d2uXbFc is yours please? iluvbitcoins left a feedback on kleineaap's profile. Gave him a 0.1 bitcoin loan on 22nd April, he was due 0.11 on 27th April
When I asked him about repayment, he said what repayment
But after over 3 months (1st August) he repaid 0.15 btc
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-snip-
PB mining also had hash power that they were selling on eBay.
-snip-
Sorry? Well, as far as I know, they were not mining. Can you backup your statement with some proof? |
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As usual Muhammed Zakir save the situation .
It will be helpful if you can cut this out from your posts. People might think you are an alt of mine.  Thank you so much mate , I really appreciate what you are doing to the community . I also sent you 5$ as a thanks  I hope the address on your profile is the right one . It was not needed. Anyway, thank you! |
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Blockchain.info will create a new account when you import wallet.dat file. AFAIK, you can't import wallet.dat file to an existing wallet. And If I manage to import it , will I have all addresses that I had on .dat to my Blockchain.info account ? I mean I can sign messages from my Blockchain.info of all addresses I had on Bitcoin Core ?
Wallet.dat backed up will contain all addresses. But, if you have a backup of wallet.dat before you used 100 addresses, then you need to get a new backup of wallet.dat. P.S. I missed your later question. Yes, you can sign any message using all the addresses you own which you had on Bitcoin Core. The Bitcoin-Qt/bitcoind client's keypool has by default 100 Bitcoin addresses. Each spend transaction that has change chews up one of those addresses. Additionally each click on New Address will consume an address from the keypool as well. So you should be able to get by without a new backup until after 100 spend transactions plus any requests for a New Address.
So if you do 10 spend transactions a month, and receive funds 5 times a month you would be fine with a backup every 4 months maybe.
A backup plan should consider that backups fail, so multiple backups don't hurt anything.
The size of the keypool can be configured so that frequent use can occur without having to make backups as frequently. For instance, weekly backups would be fine for a wallet that does 100 transactions a week but the keypool has size of 250.
When the wallet is encrypted, no keys are added to the pool until an action that requires the passphrase to be entered. Backup strategy should take this into account.
And finally, if you import a private key, that key will not exist in any previously made backups.
Or .. is there is any wallet.dat reader ? basically convert it to string or something so I can read it using Notepad and I copy private keys and do whatever I need to ? Gracias amigos  You can use Pywallet. In fact, I recommend it. https://bitcointalk.org/index.php?topic=34028.0I recommend you to dump private keys using Pywallet and then, sweep Bitcoins from it to Electrum or create a new Electrum wallet to import those private keys. If you still insist to use Blockchain.info, click "Import / Export", click "Import Wallet" and then paste the output you got after running pywallet.py --dumpwallet. |
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