Search content
Sort by
Showing 17 of 17 results by RealMinecache
Renting is the best solution for workers from villages to cities, because they don't have enough money to buy it, and in my country to have a standard house, which the government provides through private companies, must have standard criteria, such as their salary in a city company , for $450 and must also be a permanent employee of the company. In addition, renting is lighter and with less financial responsibility and maintenance costs, as this is usually the responsibility of the landlord.
Renting, in my opinion cannot be said to be the best solution for workers that live in the rural areas and come over to the city for work as some would find it more affordable and cheaper to commute from their homes in the rural areas to work in the city. A lot of people do this instead of going through the hassle of renting a place in the city that the rent alone would probably eat deep into your little income.
Also, I don’t think renting is as light on the tenant as you make it out to be. The landlord obviously has some obligations to keep the house convenient for living so does the tenant is responsible to keep the house as it was met. Also, the light, water bills are on you as the landlord would obviously not pay for the utilities of a tenant.
Renting isn’t the best solution as I think there is actually no best solution. People are just inclined to do whatever works for them.
you do not understand / can feel how the condition of a small person like me. In the village, I do whatever work so that my family can eat everyday. In the village, getting a job in a company is very, very difficult with the current conditions. Incidentally a relative / friend asked me to work in the city, with a salary less than the city standard. With my condition far from my family and in order to change the family's economy, I am willing to rent a residence where I live which is not far from the company I work for. Indeed, in renting a house we have to take care of it. There is no other way for me, I don't agree with renting something that is a waste.
I've been through what you've been through. It can be said that renting a house when going to the city to start a business is the only option, we don't have a choice, let alone whether it's a good or bad solution, and I don't consider it a waste. For a worker in a third world country, it is impossible to accumulate money to buy a house unless we have other sources of income, so it can be said that renting is mandatory.
I am fortunate to have only left my hometown for 3 years to start a business, but many of my friends have not been able to return to their hometown and have had to rent houses for 10 years. Many say that if they don't rent, they can buy a house with that money in 10 years. But I want to ask that in those 10 years, if they don't rent a house, where will their family live?
Re: At what point does Electrum decipher a private key?
Thanks. What I am really trying to understand is is it possible for my to validate my private key using Electrum on an offline PC but without creating a new wallet or sweeping it? What I've noticed is that if I enter the private key in that window the Next button becomes ungreyed. However if I enter that private key with a single character deviation the Next button remains greyed out. In essence I have an old priavte key that I would like to test is still valid but without moving the funds from it.
Hi there,
When you create a new wallet in Electrum and opt to 'Import Bitcoin addresses or private keys' as the next step, at what point does Electrum decipher the private key? I've noticed that on the 'Import Bitcoin Addresses' window if you do not enter a valid private key the 'Next' button is greyed out until you do. Does that mean that at the point of entering in a valid private key and the Next button becomes ungreyed that Electrum as deciphered the private key as valid?
Sorry if noob question.
When you create a new wallet in Electrum and opt to 'Import Bitcoin addresses or private keys' as the next step, at what point does Electrum decipher the private key? I've noticed that on the 'Import Bitcoin Addresses' window if you do not enter a valid private key the 'Next' button is greyed out until you do. Does that mean that at the point of entering in a valid private key and the Next button becomes ungreyed that Electrum as deciphered the private key as valid?
Sorry if noob question.
It's pretty much the same process as described earlier in this thread, except instead of using a second computer as your airgapped device, he is using a phone.
This is certainly better than just sweeping your private key in to a hot wallet, but it is not as good as using an airgapped computer for a couple of reasons. A phone in flight mode is not truly airgapped, and studies have shown it still pings for cell towers, it can still send location data, it can still leak via WiFi and Bluetooth, and so on. A phone is not truly airgapped unless you open it up and start ripping out the antennas and WiFi modules. You also are not starting on a clean device, and your phone could have any type of malware on it already. Even if you factory reset your phone, you aren't starting from scratch, but rather starting from whatever bloatware and spyware your carrier/manufacturer has pre-installed, and with their (usually) closed source OS.
An airgapped phone is an OK middle ground, but it is not as good as using a fully airgapped computer with a clean install of an open source OS.
This is certainly better than just sweeping your private key in to a hot wallet, but it is not as good as using an airgapped computer for a couple of reasons. A phone in flight mode is not truly airgapped, and studies have shown it still pings for cell towers, it can still send location data, it can still leak via WiFi and Bluetooth, and so on. A phone is not truly airgapped unless you open it up and start ripping out the antennas and WiFi modules. You also are not starting on a clean device, and your phone could have any type of malware on it already. Even if you factory reset your phone, you aren't starting from scratch, but rather starting from whatever bloatware and spyware your carrier/manufacturer has pre-installed, and with their (usually) closed source OS.
An airgapped phone is an OK middle ground, but it is not as good as using a fully airgapped computer with a clean install of an open source OS.
Since you're looking for the safest way to do it, I agree with @o_e_l_e_o's answer above. You only get closer to the highest safety/security possible when you eliminate all the potential risks and flaws out of your method. And so far, the only remaining potential security threats is someone physically tampering with your airgapped device which is imo a quite low probability unless you're being watched by intelligence agencies or have some bad actor around. That is unless you somehow mess up yourself and accidentally enter the airgapped device's seed into the online PC, which I believe is something that has a low chance of happening as well.
I would not use a phone because it has just too many backdoors and unknown/non-removable components. A PC is quite modular and you can easily remove or add anything you might or might not need. For me, privacy & security are not only interests but also a fascinating hobby (and now addiction, I guess). Even if you aren't followed by 3-letter agencies, I would still recommend to follow the best security practices as it's more than worth it over the long term. And since it's both fun and safer, why not?
I would not use a phone because it has just too many backdoors and unknown/non-removable components. A PC is quite modular and you can easily remove or add anything you might or might not need. For me, privacy & security are not only interests but also a fascinating hobby (and now addiction, I guess). Even if you aren't followed by 3-letter agencies, I would still recommend to follow the best security practices as it's more than worth it over the long term. And since it's both fun and safer, why not?
Absolutely I agree with you both. I just posted the video link to illustrate the general process as it was all I could locate online. I'd never use a mobile phone with downloaded app.
Thanks.
Does this method also mean that I do not have to sweep the total balance of bitcoins out the paper wallet? In essence I can just transfer whatever amount I wish? Sweeping wallets on Blockchain.info swept the total amount.
Normally, sweeping means to move the whole funds from wallets like paper wallet by proving the private key. Assuming, you have paper wallet, and you want to sweep to Wallet A. First of all, wallet A will have the sweeping feature, and it will request for private key of the paper wallet. Once you input the private key, the whole funds will be moved to the new wallet (wallet A). But, this is just a way you will have to just get your bitcoin to be handled by private key that will be online. But what is explained above, you can send any amount of bitcoin you want (you can send half, you can send all, you can send less than half, or any amount), and yet your paper wallet private key is still offline, and yet the private key of the wallet you send it to is also offline. Nothing about your private key touch online. That is why I will strongly recommend the method.
Thanks. Everyone is a great help on here.
Yes this offline method definitely is the way to go for me now.
I have sweeped wallets using Blockchain.info previously but never used this method before.
The issue with this is you must enter your private key in to a live website (and a very sketchy one at that). I definitely wouldn't recommend doing this, especially with a significant amount of coins.I will likely test this method on on a small amount of satoshis first.
A smart idea.Does this method also mean that I do not have to sweep the total balance of bitcoins out the paper wallet?
It depends. Is your paper wallet an individual private key, or is it a seed phrase?If it is an individual private key, then it is generally good practice to sweep the entire amount. An individual private key will only generate a single address, so if you do not sweep it all one of two things will happen. What should happen is that your change is returned to the same address, which means you still have your coins but it is bad for your privacy. What has happened to some users in the past is that their wallet has generated a new address to send the change back to without them realizing, which they haven't backed up and have then lost access to their change.
If your paper wallet is a seed phrase, then you do not need to sweep the entire amount. The wallet will automatically send the change to a brand new change address generated from your seed phrase, which you can then recover again at a later date.
Yes it's a private key. What I'll most likely do is transfer the complete ammount then to play it safe. 👍
Is there any way to accidentally screw this process up?
Lots of ways, unfortunately. It can be quite a complex process if you have never done it before.Provided your private key never touches your online device, and you don't sign a transaction without double checking it is correct (and therefore making sure it has not been altered or tampered with by any malware on your online device), then it is incredibly unlikely that any mistakes you make would result in loss of your coins. With that in mind, the most important thing to remember, as I said above, is to ensure you only ever enter you private key or seed phrase on to your airgapped computer, and you only enter an address or public key on to your online computer.
If something goes wrong or doesn't seem to work as you expect, then simply stop, look for the mistake, ask on here if needed, or even start from scratch. Just take your time with each step.
Thanks my friend. I do not plan to do this for sometime yet but really just wanting to get my head around the process. I have sweeped wallets using Blockchain.info previously but never used this method before. I will likely test this method on on a small amount of satoshis first. Does this method also mean that I do not have to sweep the total balance of bitcoins out the paper wallet? In essence I can just transfer whatever amount I wish? Sweeping wallets on Blockchain.info swept the total amount.
The security of your chosen method depends on your habits. Most people have bad habits and generally practice bad security and based on my experience, the more critical your thinking is and the more paranoid you are, the higher the security you'll be looking for.
I'll leave here what I would personally do, since I really think you should always keep a good security practice. The more you don't, the higher your risks of messing up are.
If you want to sweep a paper wallet, the most secure way to do it is on an offline, airgapped PC. For the setup, you basically need three things: two computers (one as the cold, airgapped wallet and one as the online wallet to broadcast your sweeping transaction) and an address to which you want to sweep your BTC.
Take an older PC of yours, remove any wireless modules from it and install a clean Linux distro on it. I'd personally recommend Debian or Ubuntu. If you don't want to install it, then you could use it as a Live CD instead (Live CD means everything you do is wiped upon shutdown/reboot). For Live CDs, I'd recommend Parrot OS which comes with Electrum preinstalled (or Tails). (bonus: I also recommend encrypting your HDD; bonus x2: if your future airgapped PC is old or you want it to run a lightweight distro, install Debian with XFCE). Make sure you verify your install file upon downloading it (Ubuntu verification tutorial; Debian verification depends on the type of download you prefer.
After installing Linux on this offline PC, it's time to download Electrum. Download it from here and verify it.
Installing Electrum
Now you have to install Electrum on both of your PCs (cold and online). If you want extra security, after verifying the file, you can (in descending order based on security as I see it):
- Write the file (and signature, if it has one) onto a CD from your online PC and plug the CD into your now-airgapped computer;
- Plug an SDHC/SDXC card (or a microSD with a SDHC/SDXC adapter if you have one around) into your online PC, put the file on it (and signature, if it has one), unplug it and flip the read-only switch so that your file/card never gets modified. Now plug it into your airgapped PC and copy the file there;
- Plug an USB stick into your online PC (preferably a stick with a read-only switch), put the file (and signature, if it has one) on it, unplug it, flip the read-only switch and put the file onto your now-airgapped PC.
As soon as you have Electrum installed on both PCs, this is what you have to do next:
Step 1. You have to work on your airgapped PC to import the private key or seed into Electrum.
Step 1a. From your airgapped PC, if you have a paper wallet containing a private key:
1. Open up Electrum and, as soon as you're asked what kind of wallet you want to create, check "Import Bitcoin addresses or private keys"
2. Insert your private key in the textbox. Move on to Step 2.
Step 1b. From your airgapped PC, if you have a paper wallet containing a seed:
1. Open up Electrum and, as soon as you're asked what kind of wallet you want to create, check "Standard wallet"
2. Continue by checking the "I already have a seed" option and input your seed into the textbox.
3. After importing your seed, go to Wallet > Information and look for the Master Public Key. It should look something like this:
Move on to Step 2.
Step 2. You have to work on your online PC to import the private key public address or the seed's Master Public Key into Electrum.
Step 2a. From your online PC, if you just imported a private key into your airgapped computer:
1. Open up Electrum. During the Install Wizard, select "Import Bitcoin addresses or private keys".
2. If you have a paper wallet, chances are you have a public address on it. So, depending on this:
2a. If you have the public address, insert it into the textbox.
2b. If you do not have the public address, go back to your airgapped PC's Electrum and click the Receive tab. On the right side of your window, the public address is shown. Write it down somewhere or scan the QR Code (click the QR Code tab for this) and insert the address into the online PC's Electrum textbox. Move on to Step 3.
Step 2b. From your online PC, if you just exported your Master Public Key from your airgapped computer:
1. Open up Electrum. During the Install Wizard, select "Standard wallet" followed by "Use a master key".
2. Insert the Master Public Key into the textbox. Move on to Step 3.
Step 3. Still working on the online PC, you have to create the sweeping transaction and export it:
1. Now you should see your balance in your online Electrum. Go to the Send tab, insert the address you want to send your BTC to and push the "Max" button. Do NOT leave it unchecked or you risk losing part of your funds! Press "Pay...", change the fee rate if you will and then press "Send".
2. In the bottom-left corner of the Transaction window, you have an "Export" button. Click Export > Export to file. After exporting it, either:
- Write the file onto a CD and insert the CD into your now-airgapped computer;
- Plug an SDHC/SDXC card (or a microSD with a SDHC/SDXC adapter if you have one around) into your online PC, put the file on it unplug it and flip the read-only switch so that your file/card never gets modified. Now plug it into your airgapped PC and copy the file there;
- Plug an USB stick into your online PC (preferably a stick with a read-only switch), put the file on it, unplug it, flip the read-only switch and put the file onto your now-airgapped PC.
Step 4. From your airgapped PC, you have to import the transaction and sign it:
1. In Electrum, go to Tools > Load transaction > From file and select the transaction you just copied.
2. Press "Sign" and export the transaction to File again (Export > Export to file..). Copy the file back to your online PC safely. Move to Step 5.
Step 5. Moving back to the online PC, you need to import the signed transaction and finally broadcast it:
1. In Electrum, go to Tools > Load transaction > From file and import the signed transaction file.
2. Press "Broadcast".
There you go. Quite complicated for a newbie, but it's the safest way you can go. From here on, you could safely use the airgapped PC as a cold wallet. Practice good security. It's worth it in the long run.
I'll leave here what I would personally do, since I really think you should always keep a good security practice. The more you don't, the higher your risks of messing up are.
If you want to sweep a paper wallet, the most secure way to do it is on an offline, airgapped PC. For the setup, you basically need three things: two computers (one as the cold, airgapped wallet and one as the online wallet to broadcast your sweeping transaction) and an address to which you want to sweep your BTC.
Take an older PC of yours, remove any wireless modules from it and install a clean Linux distro on it. I'd personally recommend Debian or Ubuntu. If you don't want to install it, then you could use it as a Live CD instead (Live CD means everything you do is wiped upon shutdown/reboot). For Live CDs, I'd recommend Parrot OS which comes with Electrum preinstalled (or Tails). (bonus: I also recommend encrypting your HDD; bonus x2: if your future airgapped PC is old or you want it to run a lightweight distro, install Debian with XFCE). Make sure you verify your install file upon downloading it (Ubuntu verification tutorial; Debian verification depends on the type of download you prefer.
After installing Linux on this offline PC, it's time to download Electrum. Download it from here and verify it.
Installing Electrum
Now you have to install Electrum on both of your PCs (cold and online). If you want extra security, after verifying the file, you can (in descending order based on security as I see it):
- Write the file (and signature, if it has one) onto a CD from your online PC and plug the CD into your now-airgapped computer;
- Plug an SDHC/SDXC card (or a microSD with a SDHC/SDXC adapter if you have one around) into your online PC, put the file on it (and signature, if it has one), unplug it and flip the read-only switch so that your file/card never gets modified. Now plug it into your airgapped PC and copy the file there;
- Plug an USB stick into your online PC (preferably a stick with a read-only switch), put the file (and signature, if it has one) on it, unplug it, flip the read-only switch and put the file onto your now-airgapped PC.
As soon as you have Electrum installed on both PCs, this is what you have to do next:
Step 1. You have to work on your airgapped PC to import the private key or seed into Electrum.
Step 1a. From your airgapped PC, if you have a paper wallet containing a private key:
1. Open up Electrum and, as soon as you're asked what kind of wallet you want to create, check "Import Bitcoin addresses or private keys"
2. Insert your private key in the textbox. Move on to Step 2.
Step 1b. From your airgapped PC, if you have a paper wallet containing a seed:
1. Open up Electrum and, as soon as you're asked what kind of wallet you want to create, check "Standard wallet"
2. Continue by checking the "I already have a seed" option and input your seed into the textbox.
3. After importing your seed, go to Wallet > Information and look for the Master Public Key. It should look something like this:
Code:
zpub6nXwKjUbuUY8BE2ETiErVgkSJZv5F5Ekz76dDFVzsmhNi26sm2WSkgNX4hmLE1c22q3prLJCcgCrkHyijEXsRb5SfNX5HAezmLVdinX1mTh
4. Scan the code using a barcode scanner or, the traditional way I like, write it down on a piece of paper Move on to Step 2.Step 2. You have to work on your online PC to import the private key public address or the seed's Master Public Key into Electrum.
Step 2a. From your online PC, if you just imported a private key into your airgapped computer:
1. Open up Electrum. During the Install Wizard, select "Import Bitcoin addresses or private keys".
2. If you have a paper wallet, chances are you have a public address on it. So, depending on this:
2a. If you have the public address, insert it into the textbox.
2b. If you do not have the public address, go back to your airgapped PC's Electrum and click the Receive tab. On the right side of your window, the public address is shown. Write it down somewhere or scan the QR Code (click the QR Code tab for this) and insert the address into the online PC's Electrum textbox. Move on to Step 3.
Step 2b. From your online PC, if you just exported your Master Public Key from your airgapped computer:
1. Open up Electrum. During the Install Wizard, select "Standard wallet" followed by "Use a master key".
2. Insert the Master Public Key into the textbox. Move on to Step 3.
Step 3. Still working on the online PC, you have to create the sweeping transaction and export it:
1. Now you should see your balance in your online Electrum. Go to the Send tab, insert the address you want to send your BTC to and push the "Max" button. Do NOT leave it unchecked or you risk losing part of your funds! Press "Pay...", change the fee rate if you will and then press "Send".
2. In the bottom-left corner of the Transaction window, you have an "Export" button. Click Export > Export to file. After exporting it, either:
- Write the file onto a CD and insert the CD into your now-airgapped computer;
- Plug an SDHC/SDXC card (or a microSD with a SDHC/SDXC adapter if you have one around) into your online PC, put the file on it unplug it and flip the read-only switch so that your file/card never gets modified. Now plug it into your airgapped PC and copy the file there;
- Plug an USB stick into your online PC (preferably a stick with a read-only switch), put the file on it, unplug it, flip the read-only switch and put the file onto your now-airgapped PC.
Step 4. From your airgapped PC, you have to import the transaction and sign it:
1. In Electrum, go to Tools > Load transaction > From file and select the transaction you just copied.
2. Press "Sign" and export the transaction to File again (Export > Export to file..). Copy the file back to your online PC safely. Move to Step 5.
Step 5. Moving back to the online PC, you need to import the signed transaction and finally broadcast it:
1. In Electrum, go to Tools > Load transaction > From file and import the signed transaction file.
2. Press "Broadcast".
There you go. Quite complicated for a newbie, but it's the safest way you can go. From here on, you could safely use the airgapped PC as a cold wallet. Practice good security. It's worth it in the long run.
Thanks. So on the online PC I create a watch-only wallet?
Step 1. You have to work on your airgapped PC to import the private key or seed into Electrum.
Step 1a. From your airgapped PC, if you have a paper wallet containing a private key:
1. Open up Electrum and, as soon as you're asked what kind of wallet you want to create, check "Import Bitcoin addresses or private keys"
2. Insert your private key in the textbox. Move on to Step 2.
Step 1b. From your airgapped PC, if you have a paper wallet containing a seed:
1. Open up Electrum and, as soon as you're asked what kind of wallet you want to create, check "Standard wallet"
2. Continue by checking the "I already have a seed" option and input your seed into the textbox.
3. After importing your seed, go to Wallet > Information and look for the Master Public Key. It should look something like this:
Code:
zpub6nXwKjUbuUY8BE2ETiErVgkSJZv5F5Ekz76dDFVzsmhNi26sm2WSkgNX4hmLE1c22q3prLJCcgC rkHyijEXsRb5SfNX5HAezmLVdinX1mTh
4. Scan the code using a barcode scanner or, the traditional way I like, write it down on a piece of paper Smiley Move on to Step 2.
Step 2. You have to work on your online PC to import the private key public address or the seed's Master Public Key into Electrum.
Step 2a. From your online PC, if you just imported a private key into your airgapped computer:
1. Open up Electrum. During the Install Wizard, select "Import Bitcoin addresses or private keys".
2. If you have a paper wallet, chances are you have a public address on it. So, depending on this:
2a. If you have the public address, insert it into the textbox.
2b. If you do not have the public address, go back to your airgapped PC's Electrum and click the Receive tab. On the right side of your window, the public address is shown. Write it down somewhere or scan the QR Code (click the QR Code tab for this) and insert the address into the online PC's Electrum textbox. Move on to Step 3.
Step 2b. From your online PC, if you just exported your Master Public Key from your airgapped computer:
1. Open up Electrum. During the Install Wizard, select "Standard wallet" followed by "Use a master key".
2. Insert the Master Public Key into the textbox. Move on to Step 3.
Step 3. Still working on the online PC, you have to create the sweeping transaction and export it:
1. Now you should see your balance in your online Electrum. Go to the Send tab, insert the address you want to send your BTC to and push the "Max" button. Do NOT leave it unchecked or you risk losing part of your funds! Press "Pay...", change the fee rate if you will and then press "Send".
2. In the bottom-left corner of the Transaction window, you have an "Export" button. Click Export > Export to file. After exporting it, either:
- Write the file onto a CD and insert the CD into your now-airgapped computer;
- Plug an SDHC/SDXC card (or a microSD with a SDHC/SDXC adapter if you have one around) into your online PC, put the file on it unplug it and flip the read-only switch so that your file/card never gets modified. Now plug it into your airgapped PC and copy the file there;
- Plug an USB stick into your online PC (preferably a stick with a read-only switch), put the file on it, unplug it, flip the read-only switch and put the file onto your now-airgapped PC.
Step 4. From your airgapped PC, you have to import the transaction and sign it:
1. In Electrum, go to Tools > Load transaction > From file and select the transaction you just copied.
2. Press "Sign" and export the transaction to File again (Export > Export to file..). Copy the file back to your online PC safely. Move to Step 5.
Step 5. Moving back to the online PC, you need to import the signed transaction and finally broadcast it:
1. In Electrum, go to Tools > Load transaction > From file and import the signed transaction file.
2. Press "Broadcast".
Step 1a. From your airgapped PC, if you have a paper wallet containing a private key:
1. Open up Electrum and, as soon as you're asked what kind of wallet you want to create, check "Import Bitcoin addresses or private keys"
2. Insert your private key in the textbox. Move on to Step 2.
Step 1b. From your airgapped PC, if you have a paper wallet containing a seed:
1. Open up Electrum and, as soon as you're asked what kind of wallet you want to create, check "Standard wallet"
2. Continue by checking the "I already have a seed" option and input your seed into the textbox.
3. After importing your seed, go to Wallet > Information and look for the Master Public Key. It should look something like this:
Code:
zpub6nXwKjUbuUY8BE2ETiErVgkSJZv5F5Ekz76dDFVzsmhNi26sm2WSkgNX4hmLE1c22q3prLJCcgC rkHyijEXsRb5SfNX5HAezmLVdinX1mTh
4. Scan the code using a barcode scanner or, the traditional way I like, write it down on a piece of paper Smiley Move on to Step 2.
Step 2. You have to work on your online PC to import the private key public address or the seed's Master Public Key into Electrum.
Step 2a. From your online PC, if you just imported a private key into your airgapped computer:
1. Open up Electrum. During the Install Wizard, select "Import Bitcoin addresses or private keys".
2. If you have a paper wallet, chances are you have a public address on it. So, depending on this:
2a. If you have the public address, insert it into the textbox.
2b. If you do not have the public address, go back to your airgapped PC's Electrum and click the Receive tab. On the right side of your window, the public address is shown. Write it down somewhere or scan the QR Code (click the QR Code tab for this) and insert the address into the online PC's Electrum textbox. Move on to Step 3.
Step 2b. From your online PC, if you just exported your Master Public Key from your airgapped computer:
1. Open up Electrum. During the Install Wizard, select "Standard wallet" followed by "Use a master key".
2. Insert the Master Public Key into the textbox. Move on to Step 3.
Step 3. Still working on the online PC, you have to create the sweeping transaction and export it:
1. Now you should see your balance in your online Electrum. Go to the Send tab, insert the address you want to send your BTC to and push the "Max" button. Do NOT leave it unchecked or you risk losing part of your funds! Press "Pay...", change the fee rate if you will and then press "Send".
2. In the bottom-left corner of the Transaction window, you have an "Export" button. Click Export > Export to file. After exporting it, either:
- Write the file onto a CD and insert the CD into your now-airgapped computer;
- Plug an SDHC/SDXC card (or a microSD with a SDHC/SDXC adapter if you have one around) into your online PC, put the file on it unplug it and flip the read-only switch so that your file/card never gets modified. Now plug it into your airgapped PC and copy the file there;
- Plug an USB stick into your online PC (preferably a stick with a read-only switch), put the file on it, unplug it, flip the read-only switch and put the file onto your now-airgapped PC.
Step 4. From your airgapped PC, you have to import the transaction and sign it:
1. In Electrum, go to Tools > Load transaction > From file and select the transaction you just copied.
2. Press "Sign" and export the transaction to File again (Export > Export to file..). Copy the file back to your online PC safely. Move to Step 5.
Step 5. Moving back to the online PC, you need to import the signed transaction and finally broadcast it:
1. In Electrum, go to Tools > Load transaction > From file and import the signed transaction file.
2. Press "Broadcast".
If you want to sweep paper wallet, it will request for transaction fee, but while do you not just import the private key into the wallet of your choice.
Perhaps he wants to move the funds to a hardware wallet or a HD wallet where he cannot import a private key. Or perhaps he wants to send some of them to another person, or split them up between multiple wallets. There are plenty of reasons to sweep an address rather than import a private key.To convert private key hexadecimal to base58 WIF, use https://bitaddress.org, click on wallet details, input the hexadecimal private key into the space provide and click on view details. You will be able to convert the private key to WIF.
Except if you do this, you will have exposed your private key to the internet and instantly put your funds at risk.You need to use an offline computer, preferably a permanently airgapped one with a clean OS, import your private key there and sign a transaction on this airgapped computer, and then move the transaction to an online computer to be broadcast. There's a good post from LoyceV about this here, which I'll just link to rather than re-hashing all the information - https://bitcointalk.org/index.php?topic=5318475.msg56389821#msg56389821. Make sure to verify your Linux and Electrum downloads before installing/using them.
Your are bang on correct. It's a very old paper wallet and I am not able to import it into any new hardware wallet. But I want to learn the most secure way to move said paper wallet into a Ledger.
A paper wallet doesn't have to be a single private key, it can also be a master private key or a mnemonic. Nowadays all the bitcoin wallets are HD and they support BIP32 and BIP39 (or an alternative to it). You can simply create the mnemonic and store those 12 or 24 words on a piece of paper calling it "paper wallet". Then each time you use a key you simply send the change to a new address and don't use the old one again. If the old one received any bitcoin in the future you still have access to it because you have your seed to generate all child keys.
P.S. When sweeping/spending coins from paper wallet you should also do it offline.
P.S. When sweeping/spending coins from paper wallet you should also do it offline.
Thank you. Do you have a link to detail the safest way to sweep a paper wallet offline?
If you do insist on using the same paper wallet again, you'll have to create a transaction that sends the change back to your paper wallet.
Ideally, your private key should never touch an online computer:
Install Electrum on your PC.
Import your address to create a watch-only wallet.
Preview the transaction, Copy the unsigned transaction. Put it on a USB stick.
Offline and running without hard drive storage:
Get a Linux LIVE DVD. Use Knoppix for instance, or any other distribution that comes with Electrum pre-installed.
Unplug your internet cable. Close the curtains. Reboot your computer and start up from that DVD. Don't enter any wireless connection password. Keep it offline.
Start Electrum. Import your private key.
Copy your unsigned transaction from the USB stick, load it into Electrum.
CHECK the transaction in Electrum. Check the fees, check the amount, check all destination addresses (character by character).
If all is okay, sign the transaction. Copy it back to your USB stick.
Turn off the computer. That wipes the Live LINUX from memory and all traces are gone.
Online:
Use your normal online Electrum to (check again and) broadcast the transaction.
Alternatively, if you decide to create a new paper wallet to store the change and your old paper wallet is empty:
Ideally, your private key should never touch an online computer:
I was considering Electrum, only downside is that when creating a wallet, seed creation is exposed
Online:Install Electrum on your PC.
Import your address to create a watch-only wallet.
Preview the transaction, Copy the unsigned transaction. Put it on a USB stick.
Offline and running without hard drive storage:
Get a Linux LIVE DVD. Use Knoppix for instance, or any other distribution that comes with Electrum pre-installed.
Unplug your internet cable. Close the curtains. Reboot your computer and start up from that DVD. Don't enter any wireless connection password. Keep it offline.
Start Electrum. Import your private key.
Copy your unsigned transaction from the USB stick, load it into Electrum.
CHECK the transaction in Electrum. Check the fees, check the amount, check all destination addresses (character by character).
If all is okay, sign the transaction. Copy it back to your USB stick.
Turn off the computer. That wipes the Live LINUX from memory and all traces are gone.
Online:
Use your normal online Electrum to (check again and) broadcast the transaction.
Alternatively, if you decide to create a new paper wallet to store the change and your old paper wallet is empty:
Quote
Bonus:
After moving all your Bitcoin, and once the transaction confirmed, check if you own Forkcoins.
After moving all your Bitcoin, and once the transaction confirmed, check if you own Forkcoins.
Thank you. Is what you have outlined the most secure method to moving coins from a paper wallet?
Good afternoon,
Once a paper wallet private key has been sweeped, can Bitcoin still be safely sent and stored to the address of the sweeped private key? And therefore can that priavte key be sweeped again in future? Or after a private key has been sweeped does the address become invalid?
Thank you.
Once a paper wallet private key has been sweeped, can Bitcoin still be safely sent and stored to the address of the sweeped private key? And therefore can that priavte key be sweeped again in future? Or after a private key has been sweeped does the address become invalid?
Thank you.
Re: What is your Satoshi theory? Deceased or alive & well
What is your Satoshi theory?
Just wondering what everyone's thoughts are on Satoshi Nakamoto.
If he's not with us today, I'm sure he'd be appalled with the amount of money being printed by governments/central banks.
One of his legendary quotes are:
"If you don’t believe it or don’t get it, I don’t have the time to try to convince you, sorry."
Is he deceased? Did he pass away from Cancer or some other grave illness?
Just wondering what everyone's thoughts are on Satoshi Nakamoto.
If he's not with us today, I'm sure he'd be appalled with the amount of money being printed by governments/central banks.
One of his legendary quotes are:
"If you don’t believe it or don’t get it, I don’t have the time to try to convince you, sorry."
Is he deceased? Did he pass away from Cancer or some other grave illness?
He passed away in 2014 due to illness. Please no more threads on this topic. Let the man rest in peace.