When people say a bad OS can fuck up /dev/urandom what do they mean by that?
idk I think i am being ultra paranoid here.
So if i want to generate a strong random seed it doesn't depend on say hardware?
I mean if i have old PC will it generate less random seed compared to new gen PC?
If i use electrum on linux vs windows which is more better to generate random seed?
it doesn't depend on hardware. either windows, linux, android or OSx is fine. electrum uses a cryptographically secure random number generator on all OS. |
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Sorry for bumping the old thread. So does that mean say i repeatedly generate seeds say 100 seeds one after the other before finally deciding the choose the seed for my wallet. Does that make the seed less secure? no it doesn't. /dev/urandom can generate unlimited cryptographically secure random numbers. it doesn't run out. It doesn't run out that's true. But there's something weird definitely. I tried it. I created seeds in electrum wizard. After 30,40 seeds the wallet closed. (may be randomness was weakening? ) . I again open and tried. Same happened again. Also the post i quoted. Electrum developer also confirmed /dev/urandom can run out of entropy if it is called repeatedly. Found similar concern here as well - https://bitcoin.stackexchange.com/questions/62871/does-my-electrum-wallet-become-less-secure-if-i-keep-generating-seeds-until-i-seandrew chow's response there is the correct answer to that question. andrew is a bitcoin core contributor and knows what he's talking about: https://bitcoin.stackexchange.com/a/62894/5273also this answer to the stackoverflow question is the correct one: https://stackoverflow.com/a/5498100/dev/urandom only needs to be seeded with a small amount of entropy. this happens at bootup. after that its pseudo random number generator can generator unlimited amount of random numbers. |
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only commands that you enter are recorded not the output of those commands. also it'll generate a 12 word seed by default unless you pass in the nbits argument.
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Sorry for bumping the old thread. So does that mean say i repeatedly generate seeds say 100 seeds one after the other before finally deciding the choose the seed for my wallet. Does that make the seed less secure? no it doesn't. /dev/urandom can generate unlimited cryptographically secure random numbers. it doesn't run out. |
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Yeah that address has too many transactions. i created a watch only wallet with that address and electrum is struggling to synchronize with a server. you will need to use bitcoin core to watch this address.
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if you have google authenticator on your phone look for an entry title trustedcoin. that's the 2fa code you need. if you can't find anything like that your only option is to contact trusted coin and ask them to reset the 2fa for you. they say on their site that they won't help but people have gotten them to help in the past: https://trustedcoin.com/#/contact-us |
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Thank you. I hadn't been on this forum for the past couple of years, but I remember that in the past you had given me some very valuable information. It was the LN instructor I mentioned that suggested to use only one node and recommended a couple of them in particular. His point was that that some nodes in the crowd might be a bit dodgy, and that using one node only is slightly better in terms of anonimity. I guess I'll follow your advice, but I'd like to hear your comments, if any, on his take.
P.S. I hope this post gets accepted - my previous reply got me a warning from a moderator which I wasn't able to understand for lack of familiarity with the terminology.
Electrum relies on servers for blockchain data but it does not trust them. They are run by random volunteers and cannot be trusted. Getting data from multiple servers and cross checking it is better than relying on any one server. The exception to this rule is if you are running your own server in which case you have a copy of the blockchain locally and don't need to trust anyone else. |
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sadly local cryptos is shutting down. i hope pakistani traders migrate to hodlhodl.com.
Why is it closed? It will be easier for us to understand if he explains fully. Don't bother me with this little question of mine. If I don't know about something I will learn from you. You will teach us. Don't get mad at us anymore while you're there. Because we don't know everything, we try to learn from you. thanks brother.  They have cited a few reasons on their blog: https://blog.localcryptos.com/after-5-years-localcryptos-is-saying-goodbye/personal health of the staff is cited as one reason. sadly local cryptos is shutting down. i hope pakistani traders migrate to hodlhodl.com.
Welcome Abdus samad bhai. Good to see OP posting here. Mera khayal ma to binance bhe eik acha option hy agr ap na trading krne hy aur P2P trading is best way to convert your crypto to Pakistan rupee , binance p2p trading ma zero fee hy. Ma na hodlhodl.com kabhi try nhi ke. Can you share your thoughts on what it is? hodlhodl is a virtual meeting place like localbitcoins and localcryptos. People can post ads to buy and sell bitcoin and then they can trade via the platform. Most importantly it does not require kyc measures like uploading id. I find automated ID verification systems buggy and hard to satisfy. |
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sadly local cryptos is shutting down. i hope pakistani traders migrate to hodlhodl.com.
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Connecting to just one server reduces your security somewhat. I would be cautious about doing this.
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The other addresses might be in different derivation path if your addresses are legacy I would like to suggest use a tool called xPub analyzer to find those missing addresses and to lead you to the correct derivation path. Here's the tool https://blockpath.com/wallets/local/101?action=appxpubExport the master public key from your Electrum wallet and then paste it there then scan. It would only show used addresses with balances including the right derivation path. Electrum wouldn't hand out addresses that are not a part of the wallet. It's not a bip39 wallet.
What colour circle icon do you see in the bottom right? If it's not green try changing servers: https://bitcoinelectrum.com/how-to-switch-to-a-different-electrum-server/[moderator's note: consecutive posts merged] |
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Electrum works with hardware wallets and has a mac osx version too.
Actually I run the Electrum Mac osx Version. So I add two Ledgers to the Electrum multi sig wallet. Understood. Is there any compatible iOS App, this would come in handy? Again, your help is highly appreciated! No there isn't. Electrum doesn't have an iOS version. Only android. |
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Electrum works with hardware wallets and has a mac osx version too.
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You can't mix and match wallet software like that. If you want to create a multisig setup all persons/devices have to be using electrum software.
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* When creating new requests, reuse addresses of expired requests
(fixes #7927).
So the expires option will matter now! |
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custom word list isn't required to restore the wallet from seed. you only need it to create the seed. for example you can restore from the seed below that is created using this wordlist: pig dipped 3875 enrich 2812 burden add faceted 3172 4653
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This is because, if electrum software was hacked or if people somehow figure out how electrum was randomizing its seeds, you would maybe be safer if you had some extra custom words.
If you agree, how many extra custom words should you add to your seed?
No electrum would still have access to your private keys so you would not be safe just because you extended the seed. |
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his wallet is synced according to the screenshot.
charlie574 why don't you post a screenshot of the history tab without blacking out the details? It looks like the last transaction is an outgoing one instead of an incoming one.
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