Can someone tell me what is the receiving address i should give a site when they ask for my bitcoin address to receive btc in the future?
On 2.x you can choose any address from the addresses tab. On 1.9.x it's the receiving tab. These are all your addresses. So i could have 10btc at one address and 5 btc in another address in electrum? Or its best to keep it all in one address?
Using a different address per transaction is recommended for privacy reasons. But you can reuse addresses. Addresses don't stop working just because you've used them in the past. There is no advantage to consolidating all bitcoins in one address. |
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To determine if a mnemonic is valid without using a word list, Electrum 2.x takes an HMAC of it (using a hardcoded key) and looks at the first byte. In pseudocode: if hmac_sha512(key="Seed version", utf8_encoded_mnemonic_sentence)[0] ≠ 0x01:
fail("invalid checksum")
The only way Electrum can create a mnemonic whose first byte of HMAC is the byte 0x01 is by generating different mnemonics and trying each's HMAC until it finds a valid one, similar to the way vanity address generators work. Doesn't this reduce the entropy of the seed? If you are going to discard the majority of them and only use the one's that have a mnemonic with a hash beginning with 01 then that reduces the pool of all possible seeds. |
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Hi Guys I am getting started in Bitcoin and have a few questions. Is Electrum a good choice of Bitcoin wallet? I want something that has good usability. Can Electrum be trusted fully? The reason I ask is because the Windows Installer is signed by someone called Animazing. That is using a nickname rather than a real name, so how do I know they can be trusted? How do I check the PGP signature of the Windows Installer download? I believe I need the public PGP key of Animazing? Is this given on this page? http://bitcoin-otc.com/viewgpg.php?nick=AnimazingThanks  You will have to read up on the person's reputation. The chief developer is Thomas Voegtlin (ThomasV) formerly of INRIA. Animazing is another contributor and he signs the Windows releases. If you know python you can go through the code. This way you are not trusting anyone. The devs' public keys can be found on the git repo: https://github.com/spesmilo/electrum/tree/master/pubkeysQuestions about electrum are best asked in the electrum forum: https://bitcointalk.org/index.php?board=98.0 |
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My husband passed away last June and I'm unable to log into his wallet. I have not come across the seed nor the password for the wallet. Is there a way that I can get in touch with Electrum to access his wallet and reset info? Any information would be helpful.
Electrum is software installed on a computer. It is not an organization with information about your husband's or any one else's wallets. If you have neither the seed nor the password there isn't much that we can do. Even the wallet recovery people need some idea of what the password is before they can attempt a bruteforce of the wallet encryption. You should search for the seed. He may have written it down somewhere. It consists of 12-13 random English words. |
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I'm basically looking for a way to make electrum seeds without having to trust a computer. I'm worried that my copy of electrum could be compromised and only generate predictable seeds.
If your computer is compromised then it doesn't really matter how you generate a seed. Mal-electrum could simply send the seed to the hacker after you've created a wallet with it. I suggest shuffling a deck of cards and then making a string out of the result. Say some thing like 1s-2c-ad for 1 of spades, 2 of clubs, ace of diamonds etc. for the whole deck Then do an md5sum of that and restore your wallet using the resulting hex digits: echo -n "1s-2c-ad..."|md5sum
This will create non-bip32 wallet but it can be done on electrum 2.x because it is backward compatible with 1.9.8 wallets. |
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Is electrum safer than blockchain wallet for desktop wallets? Or what are the safer wallets for desktop pc?  blockchain.info wallet is not a desktop wallet. It is a web wallet. Electrum is safer than the bc.i wallet. |
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OP this is much easier to do using a hosted API. See chain.com or blocktrail.com.
Also you don't want to immediately split any receipts but wait for a minimum amount to be reached.
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100-address trap? I'm not aware of such things, is it an exploit of some sorts? Private key extraction through social engineering? It's not an exploit. It means that backups are only good for 100 transactions from the time of backup. After that bitcoin core generates new private keys that are not in the backup you made so you must make a fresh backup. If you fail to do that and the wallet file on your hard drive is corrupted you lose money. What's the argument against moving Bitcoin Core to HD? Are the principle developers against it for some reason?
One of the principle developers invented the concept of HD wallets so they can't be more in favour of it. |
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If toasters and fridges start mining bitcoins then what do they need humans for? They can earn their own living and that'll be the start of the end of the human race!
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i wasnt particuarly thrilled that they were offshore.
Please mention your country so that only developers who are on-shore apply for this work. |
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I just installed it so now its:- root@Squall:/# whereis sudo
sudo: /usr/bin/sudo /usr/lib/sudo /usr/share/man/man8/sudo.8.gz
root@Squall:/#
sudo is used to execute commands as another user. It's used on servers where root login is disabled and instead people login as an unprivileged user and use sudo to execute commands as root user. In your case since you are already logged in as root you can omit the use of sudo. Commodo has some excellent documentation that you should refer to instead of asking on random forums for help: https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/637/37/certificate-installation-apache--mod_sslIf you need someone to install it for you then PM me and I'll do it for a reasonable fee. |
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Electrum testnet would require a testnet electrum server as well.
The chief dev has said he uses real coins for testing.
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If you are not seeing any addresses after a restore then that means there is a problem with the electrum server you are connected to. So open your old wallet, change to a different server and then try doing a restore again.
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I'm using Ubuntu, here what I have done:
The .exe file is for windows users. You should follow the instructions for linux and download the source tarball. That is signed by ThomasV. |
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how do i download the page?
You can save it using your browser or use git clone: https://github.com/pointbiz/bitaddress.org/tree/v2.9.8It's all self-contained in one html page. You could save it if you like but if you are going online using tails anyway then might as well visit bitaddress.org to load the page and then disconnect from the net. |
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Oh yes i forgot to note that its a mini private key actually. So is it so that it cannot be imported to electrum as it is? Do i need to decrypt it or something? If so then i didnt realize that.
So simply put, everything i said + its a mini key, the kind that begins with an S, just like in that link it is described. Do i do something with that?
You can only import private keys in Wallet Import Format (WIF). You can convert to WIF using the wallet details tab of https://www.bitaddress.org . You can download this page and run it offline. It uses client side javascript for everything. |
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Further clarification: In the FAQ it says (about version 2.0, though) that you cannot import private keys to a seed wallet, the same thing was said in the previous topic where i asked for help. It was said instead that i should do as it is in the FAQ as well, creating a new wallet by restoring a wallet from seed, with the private key typed in as the seed. However, it simply disappears after pressing next and no new addresses have appeared in my electrum client, as if i did not do the whole process at all.
Seed is not the same as private key. Restore is done using seed not a private key. Please answer my question above about what you are referring to as a private key. Is it really a private key or something else? |
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Why do you think this is spam? Im just trying to use my bitcoins, been trying for so long im starting to feel pretty stupid.
The version is 1.9.8, the version that comes with tails.
When i go to wallet>private keys>import and i enter the private key, it says error and that it could not be imported.
Private keys in WIF begin with 5, L or K. More details about what they look like: https://en.bitcoin.it/wiki/Private_key#Base58_Wallet_Import_formatIs this what you are referring to as the private key? |
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Have you considered using sqlite? I just looked it up and it is ACID compliant. |
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