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Author Topic: How Do I Send Coins From Offline Wallet?  (Read 659 times)
marketorder
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September 02, 2013, 09:58:42 PM
 #1

I have a offline wallet and how can i securely send bitcoins online using my offline cold storage wallet?
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September 02, 2013, 10:02:14 PM
 #2

Bitcoin-QT > Send > Address/Amount > Send > OK.

?

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September 02, 2013, 10:05:45 PM
 #3

Bitcoin-QT > Send > Address/Amount > Send > OK.

?

The OP specified offline (cold-storage) wallet. So one would have to use Bitcoin-Qt's Debug window to import the private keys from cold storage first:

Open Debug Window
Code:
walletpassphrase <passphrase> <duration in seconds to hold wallet unlocked>
(Passphrase should be enclosed in " " if it contains spaces.)
Code:
importprivkey <WIF-format private key>
Wait about 10 minutes (depends on computer's performance)
Then you can close the Debug window and spend the money. Best not to attempt to reuse paper wallets, too.

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marketorder
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September 02, 2013, 10:09:56 PM
 #4

Why wouldn't you reuses the paper wallet?

Bitcoin-QT > Send > Address/Amount > Send > OK.

?

The OP specified offline (cold-storage) wallet. So one would have to use Bitcoin-Qt's Debug window to import the private keys from cold storage first:

Open Debug Window
Code:
walletpassphrase <passphrase> <duration in seconds to hold wallet unlocked>
(Passphrase should be enclosed in " " if it contains spaces.)
Code:
importprivkey <WIF-format private key>
Wait about 10 minutes (depends on computer's performance)
Then you can close the Debug window and spend the money. Best not to attempt to reuse paper wallets, too.
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September 02, 2013, 10:12:37 PM
 #5

Because it could be compromised.

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September 02, 2013, 10:18:08 PM
 #6

So if I'm sending 3 Bitcoins from my offline wallet that has 21 Bitcoins I need to destroy the wallet that has the remaining Bitcoins? What do I do with the remaining Bitcoins in my offline wallet?


Because it could be compromised.
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September 02, 2013, 10:34:06 PM
 #7

So if I'm sending 3 Bitcoins from my offline wallet that has 21 Bitcoins I need to destroy the wallet that has the remaining Bitcoins? What do I do with the remaining Bitcoins in my offline wallet?

I would send the change to a new paper wallet.

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September 02, 2013, 10:45:02 PM
 #8

Once you have imported the private keys into your "live" wallet consider them as no longer in the offline (cold) wallet. So never ever delete the live wallet after making a transaction, because the change will be in a change address in the live wallet (someone earlier lost about BTC87 making this mistake!).

As another poster just said, you can pay the change into a new cold-storage address.

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marketorder
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September 02, 2013, 10:47:48 PM
 #9

Sounds like a pain in the ass if you are using the coins on a regular basis. Any encrypted online wallets I can transfer the funds too and use that are very secure?

So if I'm sending 3 Bitcoins from my offline wallet that has 21 Bitcoins I need to destroy the wallet that has the remaining Bitcoins? What do I do with the remaining Bitcoins in my offline wallet?

I would send the change to a new paper wallet.
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September 02, 2013, 10:52:00 PM
 #10

Any bitcoin I intend to use on a regular basis just stays in the live wallet - works for me. I don't carry anything of great value on my tablet (Mycelium Android wallet), however.

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marketorder
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September 02, 2013, 10:55:38 PM
 #11

What are some reputable online secure wallets?   

Any bitcoin I intend to use on a regular basis just stays in the live wallet - works for me. I don't carry anything of great value on my tablet (Mycelium Android wallet), however.
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September 02, 2013, 11:03:44 PM
 #12

What are some reputable online secure wallets?    

Any bitcoin I intend to use on a regular basis just stays in the live wallet - works for me. I don't carry anything of great value on my tablet (Mycelium Android wallet), however.

blockchain.info is the default answer.

try to think about online wallets like your checking account and offline cold storage wallets as your savings account.

Rep Thread: https://bitcointalk.org/index.php?topic=381041
If one can not confer upon another a right which he does not himself first possess, by what means does the state derive the right to engage in behaviors from which the public is prohibited?
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September 02, 2013, 11:17:08 PM
 #13

If you send your Blockchain wallet money from your paper wallet how exactly can the paper wallet be compromised?
What are some reputable online secure wallets?    

Any bitcoin I intend to use on a regular basis just stays in the live wallet - works for me. I don't carry anything of great value on my tablet (Mycelium Android wallet), however.

blockchain.info is the default answer.

try to think about online wallets like your checking account and offline cold storage wallets as your savings account.
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September 02, 2013, 11:31:41 PM
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If you send your Blockchain wallet money from your paper wallet how exactly can the paper wallet be compromised?
What are some reputable online secure wallets?    

Any bitcoin I intend to use on a regular basis just stays in the live wallet - works for me. I don't carry anything of great value on my tablet (Mycelium Android wallet), however.

blockchain.info is the default answer.

try to think about online wallets like your checking account and offline cold storage wallets as your savings account.

theoretically? maybe a man in the middle attack? or a key logger? if you are really concerned than boot from a linux disk. thats what i do just to be safe when im handling large amounts.

Rep Thread: https://bitcointalk.org/index.php?topic=381041
If one can not confer upon another a right which he does not himself first possess, by what means does the state derive the right to engage in behaviors from which the public is prohibited?
marketorder
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September 02, 2013, 11:37:03 PM
 #15

Ok I'm using a Mac how do I boot from a linux disk like Ubantu? I've tried booting from the iso on a thumb drive and it doesn't work any suggestions?

If you send your Blockchain wallet money from your paper wallet how exactly can the paper wallet be compromised?
What are some reputable online secure wallets?    

Any bitcoin I intend to use on a regular basis just stays in the live wallet - works for me. I don't carry anything of great value on my tablet (Mycelium Android wallet), however.

blockchain.info is the default answer.

try to think about online wallets like your checking account and offline cold storage wallets as your savings account.

theoretically? maybe a man in the middle attack? or a key logger? if you are really concerned than boot from a linux disk. thats what i do just to be safe when im handling large amounts.
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September 02, 2013, 11:50:05 PM
 #16

owow sorry but i dont know much at all about macs. i do know that mac os is pretty secure and there isnt a whole lot of bitcoin malware out there anyway right now, so the intersection of mac bitcoin malware is probably nonexistent.


Rep Thread: https://bitcointalk.org/index.php?topic=381041
If one can not confer upon another a right which he does not himself first possess, by what means does the state derive the right to engage in behaviors from which the public is prohibited?
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