[ANNOUNCE] Electrum - Lightweight Bitcoin Client

[dillpicklechips]

It is possible to import a private key into an offline computer using electrum? Or does it only do offline signing for keys derived from it's seed?

[1714016233]

1714016233

[1714016233]

1714016233

[Abdussamad]

It is possible to import a private key into an offline computer using electrum? Or does it only do offline signing for keys derived from it's seed?

Yes you can do this. Once you've imported the private key you have to create a seedless version of the wallet. This can only be done via the command line:

Code:

electrum deseed

Or with a specific wallet file:

Code:

electrum -w my_wallet deseed

The it will create a .seedless file that will be a watching only wallet for use on your online system.

[dillpicklechips]

It is possible to import a private key into an offline computer using electrum? Or does it only do offline signing for keys derived from it's seed?

Yes you can do this. Once you've imported the private key you have to create a seedless version of the wallet. This can only be done via the command line:

Code:

electrum deseed

Or with a specific wallet file:

Code:

electrum -w my_wallet deseed

The it will create a .seedless file that will be a watching only wallet for use on your online system.

Thank you so much! So every time I import a key I have to re-create the wallet for the online computer? Is there a way to just import the address on the online computer that matches the private key to the offline one?

 

[btcven]

It is possible to import a private key into an offline computer using electrum? Or does it only do offline signing for keys derived from it's seed?

Yes you can do this. Once you've imported the private key you have to create a seedless version of the wallet. This can only be done via the command line:

Code:

electrum deseed

Or with a specific wallet file:

Code:

electrum -w my_wallet deseed

The it will create a .seedless file that will be a watching only wallet for use on your online system.

Thank you so much! So every time I import a key I have to re-create the wallet for the online computer? Is there a way to just import the address on the online computer that matches the private key to the offline one?

 

BE CAREFUL

https://github.com/spesmilo/electrum/issues/225#issuecomment-32087172

[Abdussamad]

It is possible to import a private key into an offline computer using electrum? Or does it only do offline signing for keys derived from it's seed?

Yes you can do this. Once you've imported the private key you have to create a seedless version of the wallet. This can only be done via the command line:

Code:

electrum deseed

Or with a specific wallet file:

Code:

electrum -w my_wallet deseed

The it will create a .seedless file that will be a watching only wallet for use on your online system.

Thank you so much! So every time I import a key I have to re-create the wallet for the online computer? Is there a way to just import the address on the online computer that matches the private key to the offline one?

 

BE CAREFUL

https://github.com/spesmilo/electrum/issues/225#issuecomment-32087172

An easier way. Switch to console tab and do this:

Code:

wallet.storage.put( 'imported_keys', {'1933phfhK3ZgFQNLGSDXvqCn32k2buXY8a' : '',  '17ewBhK712mY2E4uPAbinThibdY2LRyabd' : '', '1FeexV6bAHb8ybZjqQMjJrcCrHGW9sb6uF' : '' } )

[ThomasV]

Electrum 1.9.8 is released.
please use this thread: https://bitcointalk.org/index.php?topic=518133.0

[Jouke]

I didn't find it in any documentation, but does electrum support bip70?

[btcven]

I didn't find it in any documentation, but does electrum support bip70?

Don't think so

[3KyNoX]

Hello Electrum.

I set my electrum.dat to an external drive, but about file blockchain, electrum persist at keeping it at ~/.electrum, is it possible to set datadir on the external drive also ?

Thanks anyway.

[dabura667]

Hello Electrum.

I set my electrum.dat to an external drive, but about file blockchain, electrum persist at keeping it at ~/.electrum, is it possible to set datadir on the external drive also ?

Thanks anyway.

Try the "Portable Version" on the Download page. All files will be stored in the same folder as the executable. You can place everything on a USB etc.

[nioc]

XP

Seems like you are giving me instruction on how to use "command line" to set up another wallet within Electrum.  I have never used command line as suggested by my preface.  

I understand but there is always a first time. I promise you it won't bite

I assume using File>Open does the same thing?  

File open opens an existing wallet. Once you've created a new wallet you can indeed use file open to open it. You could also create a shortcut (right click shortcut > properties > target) like this to directly access a specific wallet:

electrum -w c:\path\to\wallet

That still leaves the main question of what would be best to do.  Is it correct to assume that it is better not to have all your btc in one place?  If so, is there any difference in safety or security between having multiple wallets in Electrum as opposed to having multiple versions of Electrum?

Multiple wallets are fun and useful if you are a power user. You can isolate coins from different sources under different wallets. You can setup offline wallets and online watch only wallets. Offline wallets are considered safer than online wallets.

Multiple versions of electrum on the same system are not useful.

Thank you for your help and encouragement.  I was unable to get command prompt working properly in XP.  I now have 8.1 and I can now get command prompt to respond to simple commands.  I just did some searching and all I could find was that command prompts for Electrum were unavailable for windows as of March 2013.  Are they presently available?  I would really like to setup an additional wallet.

[Abdussamad]

Thank you for your help and encouragement.  I was unable to get command prompt working properly in XP.  I now have 8.1 and I can now get command prompt to respond to simple commands.  I just did some searching and all I could find was that command prompts for Electrum were unavailable for windows as of March 2013.  Are they presently available?  I would really like to setup an additional wallet.

Update to the latest version of electrum. The run it and choose file menu > new/restore. Navigate to a suitable location on your hard drive and enter a suitable name for your new wallet. Click save and then follow the on-screen instructions to create a new wallet. In future when you want to open this wallet either create a shortcut, as I mentioned in my last post, or use file > open.

[nioc]

Thank you for your help and encouragement.  I was unable to get command prompt working properly in XP.  I now have 8.1 and I can now get command prompt to respond to simple commands.  I just did some searching and all I could find was that command prompts for Electrum were unavailable for windows as of March 2013.  Are they presently available?  I would really like to setup an additional wallet.

Update to the latest version of electrum. The run it and choose file menu > new/restore. Navigate to a suitable location on your hard drive and enter a suitable name for your new wallet. Click save and then follow the on-screen instructions to create a new wallet. In future when you want to open this wallet either create a shortcut, as I mentioned in my last post, or use file > open.

So yes I have the latest version.  The help button just directs you to the electrum site which has no info on setting up an additional wallet with this version.

I assume a suitable name for my wallet would be placed at the bottom where it says file name and I would input
C:\Users\(me)\AppData\Roaming\Electrum\wallets\anyname_wallet

I have no idea what navigating to a suitable location on my hard drive means.  What is a suitable location, how do I get there and what do I do with that info?

[magarto]

Is 1.9.8 safe from the SSL bug?

[ThomasV]

Is 1.9.8 safe from the SSL bug?

see https://bitcointalk.org/index.php?topic=562263.msg6143561#msg6143561

[Abdussamad]

Thank you for your help and encouragement.  I was unable to get command prompt working properly in XP.  I now have 8.1 and I can now get command prompt to respond to simple commands.  I just did some searching and all I could find was that command prompts for Electrum were unavailable for windows as of March 2013.  Are they presently available?  I would really like to setup an additional wallet.

Update to the latest version of electrum. The run it and choose file menu > new/restore. Navigate to a suitable location on your hard drive and enter a suitable name for your new wallet. Click save and then follow the on-screen instructions to create a new wallet. In future when you want to open this wallet either create a shortcut, as I mentioned in my last post, or use file > open.

So yes I have the latest version.  The help button just directs you to the electrum site which has no info on setting up an additional wallet with this version.

I assume a suitable name for my wallet would be placed at the bottom where it says file name and I would input
C:\Users\(me)\AppData\Roaming\Electrum\wallets\anyname_wallet

I have no idea what navigating to a suitable location on my hard drive means.  What is a suitable location, how do I get there and what do I do with that info?

When you use file > new/restore you are creating a new wallet so you need to choose a folder on your hard drive to save that new wallet file. You also need to choose a name for that wallet file. The name and location you've given above sounds fine.

Later when you want to open the wallet using file > open you will navigate to the folder where you saved the wallet file and select it.

[nioc]

Thank you Abdussamad, success!  I thought maybe I had to choose a suitable location from the many folders displayed on the left side.  Why are they there? 

Anyway when you know what you're doing it is very simple.  I don't remember if it is the same as when I set up my first wallet but I like that you have to confirm your seed.  Time to test it.  Again thanks for all your help.

[SebastianJu]

I like and use Electrum often but now i nearly made a big error that partly is because of Electrum's behaviour to redraw the lists and put you on the first line again. (Breaking label writing and so on in the same step.)

I wanted to send 4 bitcoins to my smartphone. I had a contact with a label in my electrum. I searched the contact, only one label to see on the screen, and must have looked away shortly, i clicked the only address that had a label on the screen and sent since i believed when i used "send to" it has to be the correct address.

Unfortunately it didnt reach the target. I checked the transaction and did not find out what address i sent to. I thought maybe i had a virus that changed an address in clipboard but when i checked blockchain i sent a transaction to it a year ago. Luckily it was the address of a friend that had a label "Friend Test". So i could get the 4BTC back now.

I know its my fault too to not check more carefully though i didnt thought in that moment about the possibility that electrum could change the screen i see. So i used the address that was the only one with a label like the page was where i searched the address before.

I really would like to see Electrum mature here and have a more user friendly updating procedure. Its the first time it could have done harm now but it was work before too often enough. Writing labels... update... searching the address again, writing label again. Or when checking transactions to find anything. I have thousands of transactions and its extremely annoying to go through the list and... youre at the start again. Now try to find where you were and hope that it not updates before you can search a bit more.

[ThomasV]

I like and use Electrum often but now i nearly made a big error that partly is because of Electrum's behaviour to redraw the lists and put you on the first line again. (Breaking label writing and so on in the same step.)

I wanted to send 4 bitcoins to my smartphone. I had a contact with a label in my electrum. I searched the contact, only one label to see on the screen, and must have looked away shortly, i clicked the only address that had a label on the screen and sent since i believed when i used "send to" it has to be the correct address.

Unfortunately it didnt reach the target. I checked the transaction and did not find out what address i sent to. I thought maybe i had a virus that changed an address in clipboard but when i checked blockchain i sent a transaction to it a year ago. Luckily it was the address of a friend that had a label "Friend Test". So i could get the 4BTC back now.

I know its my fault too to not check more carefully though i didnt thought in that moment about the possibility that electrum could change the screen i see. So i used the address that was the only one with a label like the page was where i searched the address before.

I really would like to see Electrum mature here and have a more user friendly updating procedure. Its the first time it could have done harm now but it was work before too often enough. Writing labels... update... searching the address again, writing label again. Or when checking transactions to find anything. I have thousands of transactions and its extremely annoying to go through the list and... youre at the start again. Now try to find where you were and hope that it not updates before you can search a bit more.

I understand; I will try to fix this soon.

[SebastianJu]

I like and use Electrum often but now i nearly made a big error that partly is because of Electrum's behaviour to redraw the lists and put you on the first line again. (Breaking label writing and so on in the same step.)

I wanted to send 4 bitcoins to my smartphone. I had a contact with a label in my electrum. I searched the contact, only one label to see on the screen, and must have looked away shortly, i clicked the only address that had a label on the screen and sent since i believed when i used "send to" it has to be the correct address.

Unfortunately it didnt reach the target. I checked the transaction and did not find out what address i sent to. I thought maybe i had a virus that changed an address in clipboard but when i checked blockchain i sent a transaction to it a year ago. Luckily it was the address of a friend that had a label "Friend Test". So i could get the 4BTC back now.

I know its my fault too to not check more carefully though i didnt thought in that moment about the possibility that electrum could change the screen i see. So i used the address that was the only one with a label like the page was where i searched the address before.

I really would like to see Electrum mature here and have a more user friendly updating procedure. Its the first time it could have done harm now but it was work before too often enough. Writing labels... update... searching the address again, writing label again. Or when checking transactions to find anything. I have thousands of transactions and its extremely annoying to go through the list and... youre at the start again. Now try to find where you were and hope that it not updates before you can search a bit more.

I understand; I will try to fix this soon.

Thanks a lot!