Topic: Ledger Nano S and a few questions (Read 1704 times)

Yeah... I'm not sure where the term "sweeping" originated, but I can see that it can be a bit misleading for new users. I know, when I first started out, that I too thought that "sweeping" was some special action for moving coins from one wallet to another.

After an afternoon of digging, I discovered that it was simply a "short cut" method of "importing private keys->create transaction->send transaction". Rather, you just enter a bunch of private keys and the wallet will go find all the coins and send them somewhere... usually to itself, but some wallets allow you to sweep to arbitrary addresses.

So, I guess the important distinction between sweeping and importing is that sweeping creates a transaction using your private keys and sends coins to a new address but the keys are then forgotten, whereas importing actually imports the private keys (or seed) into your wallet and acquires the coins that way.

Sweeping is generally deemed safer, as the "exposed" private keys are generally "forgotten" and not used again, minimising the chance of coin loss via your keys having been compromised... whereas, with an import, keyloggers/memory-clipboard scanners/screengrabbers etc have the opportunity to work their mischief if your coins are still sitting on the same keys you've just typed or copy/pasted etc.

Thank you all! Sorry for bothering, but this is all still new stuff to me. I've started trading/buying/learning like 2 weeks ago, so please forgive me if I will ask stupid questions (stupid for old users), as my time for learning is strictly limited (2 little kids, just to say).

Anyway, these answers fully satisfies me, as I really have no issues with revealing, how much I have (not much for now, so...).
If the security is not compromised here, I'm all good.

And I was thinking, that "sweeping" is some magical way to teleport my funds.
Apparently, that is not the case

"Sweeping" means to send all funds from one wallet (e.g. paper wallet) to another wallet (the one you are speewing it into).
Most wallet softwares let you "sweep" your funds. But what basically happens is they import the private keys, sign and broadcast a transaction with all funds being sent
to an address generated by the wallet software itself.




No. Just your privacy is 'at risk'. Security-wise everything is fine.

As HCP already mentioned, it is only a possible compromise to your privacy. If someone knows your public key/address, they can see how much you have. That's it. They can't touch it.

[1]
Yeah, I didn't want to restore my Coinomi wallet to Ledger, but rather "sweep paper wallet" for only one coin.
But I got it, the best way in terms of security is to transfer them. Thanks.

[2]
But is leaking public keys a danger to my funds? I mean, by having access to my public keys is anyone able to "touch" my coins or tokens?

Thank you very much for help!

You can, but not "safely"...

That is to say, you could always try restoring your Coinomi seed into the Ledger... which should theoretically clone the Coinomi wallet. But that would totally defeat the entire purpose of having the Ledger (ie. your seed/private keys have NEVER been "outside" the Ledger).

The only truly safe way is to simply send the tokens to the wallet(s) on your Ledger (that was initialised with a seed in a "safe" manner, ie. inbuilt initialisation, or restored using a seed generated offline with dice etc).


Ledger and MEW is a safe combination. The private keys/seed cannot be accessed from outside the Ledger. The worse that could happen is that MEW could leak your "public" keys and/or addresses and compromise your privacy.

Question: I have several ERC20 tokens, currently hold in Coinomi mobile wallet.
I want to transfer them to Ledger - is there a way to scan/replicate/teleport/sweep my funds from Coinomi to Ledger OTHER than simply send tokens?
I'm asking, cause transfer fees for ERC20 are awfully expensive comparing to other coins...

PS. is it safe to bond Ledger with MyEtherWallet? I'm not a big fan of online wallets...

Bittrex has added Bitcoin Gold now.

I will use this link, it's semms safe, i can use Coinomi to claim my Bitcoin Gold

https://coinomi.freshdesk.com/support/solutions/articles/29000013719-how-to-get-bitcoin-cash-from-many-wallet-software-services-with-coinomi

Aside from HitBTC, there is also "changelly.com"... nice little insta-sell if you don't mind the rates.

Yes - but: there are is only one exchange at this time where you can move the funds in case you want to sell it. It is a small exchange and I don't know how reliable it is, so you may be better off waiting until more exchanges are able to receive funds. All other exchanges which has bitcoin gold in it, haven't yet wallets to receive bitcoin gold from the outside.

Pretty much... The only difference is that BTG was forked around Oct 24th (depending on your timezone)... specifically it occurred at 2017-10-24 01:20:39 UTC... block #491407... so, you need to use the private keys that held BTC as of block #491406. If you made any BTC transactions (send OR receive) AFTER Aug 1st and BEFORE block #491407, then your total amount of BTG will likely be different to the total amount of BCH... and quite possibly on different keys.

In any case, if you move ALL you BTC now to your Ledger, you can simply import ALL you keys from the Bitcoin Core wallet.dat into both a BCH and a BTG wallet and you will be able to get your BCH and BTG.



Just to clarify, as I think omnz423 didn't quite understand this correctly (As you were not asking about removing the app from the computer, you were asking about removing the app from the Ledger itself)... Yes, you can remove the Bitcoin "app" from your Ledger (or any of the other apps like BitcoinCash, Doge, LTC, Bitcoin Gold etc) and then reinstall it later and you won't lose anything. All the apps generate their wallets from the one seed (backed up by your 24 word seed mnemonic)... that seed is NEVER removed unless the device is wiped/reset (wrong PIN 3 times or manual reset etc).

1.
Good, i will get my private key from the link i posted earlier. But before that i send my Bitcoins to Ledger.

2. Thank you!

3. I see now that they have Bitcoin Gold app, can i claim them same way as Bitcoin Cash?

I'll answer your questions because i came by them.


Yes you can, like mentioned earlier, you need the private key for claiming them. Your private key is connected to your bitcoins and bitcoin cash, but they are on seperate chains now so sending funds on other chain won't affect the other.


If you mean removing the application from your computer, yes. The seed on hardware wallets is stored on the hardware wallet and not the computer.
You'll save every private key, unless you wipe the hardware wallet but it's highly unlikely because there are many warnings before being able to do that.

Perfect!

just two things i need to check with you.

1. I can send my Bitcoins and after i have sent them, i can claim my Bitcoin Cash/private key? My private key is not connected to my Bitcoins but my wallet.dat file right?

2. If i remove my Bitcoin app on Ledger, and then reinstall it, everything is there right(with same adresses and private key)? And the same goes for every app/coin that Ledger supports?

Yes, that's correct on all counts.

I think i understand now,

My Bitcoin Cash is "inside" my private key? They are still there if i move my Bitcoins and get a new private key for just Bitcoin?

If this is correct then i don't even need to claim my Bitcoin Cash now, if i save my private key i can claim them in a year if i want? Same goes for Bitcoin Gold? i can claim them with just my current private key when it goes live?

I thought my current private key was useless if i moved my bitcoins to Ledger and got a new key.

So then i just send my Bitcoins to Ledger and use the link below to claim my Bitcoin Cash


https://techhelpkb.com/claim-bitcoin-cash-from-bitcoin-core-to-an-spv-wallet/?utm_source=medium&utm_medium=link&utm_campaign=bc2spv

Unfortunately not.
Step 1 is clear, you can send all or part of your bitcoins to your Ledger wallet.
Advice: send all of them; ofcourse when you have 2 Ledger wallets, or you want to split it in several parts, no problem, but due to the fact that you need the private key for the BCH claim, it's safest to send them all from your wallet, so that nothing is left behind in case of abuse of your private key.

Step 2: You can claim your BCH using your private key, only NOT by using your Ledger. Ledger can't import private keys, so you have to work around that. Examples: you can use Electron Cash or Coinomi wallet to import the private key. Then send your Bitcoin Cash from this wallet to either your Ledger, an exchange or whatever you prefer.

Step 3: you can already do this in step 2.
Step 4: no problem
Step 5: no problem
Step 6: no problem.

To add:
If you had your bitcoins in your Ledger wallet on August 1, then you could have used the info in your link. But not in this case.

Before August 1 i used Bitcoin core wallet, i have a wallet.dat that is encrypted. i don't have a seed(if you mean words for a password)

First:
You can only claim your bitcoin cash using the private key of the wallet you used on August 1.

So only if you're able to get the original private key on your Ledger, the link you provided will help you. In all other cases you have to use a workaround: you have to import the private key into another wallet, and then send the BCH to either your Ledger or the exchange (or both).

AFAIK Ledger does work with another seed, but is not able to import a single private key. So if your current wallet has a seed, you're fine, but otherwise: you need to use another wallet to send them to your Ledger.


So before we can answer your question, the first thing you/we need to know if you can export the seeds from your current wallet or not.

I think you have misunderstood what i meant.


This is the step i want to take.

Version 1.

1. send half of my Bitcoins to Ledger from Bitcoin Core wallet

2. Split/claim my Bitcoin Cash(half of them) like in the link(i want to split my Bch in my ledger, i am not gonna use another wallet)

https://coinsutra.com/bitcoin-cash-ledger-wallet/

3. move some of my Bitcoin cash to an exhange

4. Leave both Bitcoins and Bitcoin Cash in my Ledger

5. Buy another Ledger

6. Move the rest of my Bitcoins + Litecoins and Vertcoins to Ledger number 2

Version 2

1. send all of my Bitcoins to Ledger from Bitcoin Core wallet

2. Split/claim my Bitcoin Cash like in the link(i want to split my Bch in my ledger, i am not gonna use another wallet)

https://coinsutra.com/bitcoin-cash-ledger-wallet/

3. move some of my Bitcoin cash to an exhange

4. Leave both Bitcoins and Bitcoin Cash in my Ledger

5. Buy another Ledger

6. Send half of my Bitcoins, Bitcoin Cash, Litecoin and Vertcoins to Ledger number 2


Can i do it like this?