Topic: Offline paper wallet for android - now with spending possible! - page 2. (Read 7740 times)
Fix is already available, warning posted. Thanks for the reminder!
key generated by the paper wallet are insecure due to the android bug. http://bitcoin.org/en/alert/2013-08-11-android
see https://github.com/ValleZ/Paper-Wallet/blob/master/src/ru/valle/btc/BTCUtils.java#L53
please notify all users of the software that keys generated by this need to be switched.
see https://github.com/ValleZ/Paper-Wallet/blob/master/src/ru/valle/btc/BTCUtils.java#L53
please notify all users of the software that keys generated by this need to be switched.
Sources published: https://github.com/ValleZ/Paper-Wallet
how exactly are you able to spend money sent to this address?
Any address with positive balance have unspent outputs (transactions). You have to obtain these transactions in raw form from bitcoin qt and paste it to the app. Then it would generate spending transaction (and verify it by itself) and after that you have to copy it and push it to bitcoin network by yourself using bitcoin qt or any other bitcoin service which allow to do that. It's quite easy. Most complicated thing is to obtain that unspent raw transaction. What are the list of spending fees?
Now it is hardcoded to 0.0005 btc, next version will allow to set this fee.
how exactly are you able to spend money sent to this address?
What are the list of spending fees?
Hi! I've just updated my android offline "paper bitcoin client" - https://play.google.com/store/apps/details?id=ru.valle.btc
Now it can not only to generate key-address pair, but also it can create and sign transactions using your private key, so now you can quite easily spend money from your paper wallet. Mini, brain wallet, WIF, WIF-compressed, BIP 38(both ec modes) private key formats are supported. Enjoy!
sources: https://github.com/ValleZ/Paper-Wallet
NEW in version 2.2.0 - wallets printing, view QR codes and changing password for encrypted keys
ps Check out the app's permissions ;-)
Now it can not only to generate key-address pair, but also it can create and sign transactions using your private key, so now you can quite easily spend money from your paper wallet. Mini, brain wallet, WIF, WIF-compressed, BIP 38(both ec modes) private key formats are supported. Enjoy!
sources: https://github.com/ValleZ/Paper-Wallet
NEW in version 2.2.0 - wallets printing, view QR codes and changing password for encrypted keys
ps Check out the app's permissions ;-)
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