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Author Topic: Spending BTC from paper wallet using offline transaction signing in practice  (Read 456 times)
nejel
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August 07, 2017, 05:18:39 PM
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I want to spend bitcoins from paper wallet without exposing my private key to online computer.  I thought it's pretty easy task using for example Electrum offline signing. But in practice I can't sign transaction because offline wallet restored from private key is related to uncompressed address and online wallet to compressed one.

Which clients are you using and how are you doing this?
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eckmar
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August 07, 2017, 06:16:53 PM
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I would like to spend bitcoins from paper wallet without exposing my private key to online computer. I tried it with Electrum following guide http://docs.electrum.org/en/latest/coldstorage.html but it I couldn't https://bitcointalk.org/index.php?topic=2068804.0
How do you do it?

You can use Armory wallet (will have to run full node). It can sign transactions offline return returning raw transaction in hex. After that you need online computer to broadcast it on the network. You can use this link to do that: https://blockchain.info/pushtx
nejel
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August 13, 2017, 08:20:31 AM
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Armory is doing the same thing - imported private key adds to wallet uncompressed bitcoin address.
So what is the whole thing about? Can I relate offline wallet with compressed bitcoin address? Can I sign transaction offline having only paper wallet data?
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