I'm guessing you're trying to find a way too automate cold storage spending? Correct me if I'm wrong, but isn't that impossible?
The off-line automation isn't exactly what the air-gaped usb/wallets and stuff do ?(Correct me if I'm wrong please
) 
Topic: Offline transaction - generate RAW transaction (Read 1150 times)
The off-line automation isn't exactly what the air-gaped usb/wallets and stuff do ?(Correct me if I'm wrong please
)
I'm guessing you're trying to find a way too automate cold storage spending? Correct me if I'm wrong, but isn't that impossible?
1- is it possible to generate a RAW transaction even if the wallet is in offline mode and not synced?
Yes, as long as you know which transaction outputs you want to spend.
2- Wallet B online can spread the RAW transaction provided by someone else?
Yes.
3- while the wallet A is offline, if I spent some BTC from another online wallet and using output that I want to include in my RAW transaction, the RAW transaction is generated correctly, but will be invalidated (attempt of double spent?).
Correct, if you have already spent the output in a transaction that is already confirmed then all peers will reject the new transaction as invalid due to the attempt of double spend.
4- Security issues?
Keep your keys safe and don't share signed transactions that you don't want broadcast.
Is it possible to generate offline transaction with a mobile wallet (Ie. Android app)?
I'm not aware of any mobile wallets that have that ability built into them.
thanks
You're welcome.
you just confirmed my knowledge.
I can keep brainstorming my idea.
1- is it possible to generate a RAW transaction even if the wallet is in offline mode and not synced?
Yes, as long as you know which transaction outputs you want to spend.
2- Wallet B online can spread the RAW transaction provided by someone else?
Yes.
3- while the wallet A is offline, if I spent some BTC from another online wallet and using output that I want to include in my RAW transaction, the RAW transaction is generated correctly, but will be invalidated (attempt of double spent?).
Correct, if you have already spent the output in a transaction that is already confirmed then all peers will reject the new transaction as invalid due to the attempt of double spend.
4- Security issues?
Keep your keys safe and don't share signed transactions that you don't want broadcast.
Is it possible to generate offline transaction with a mobile wallet (Ie. Android app)?
I'm not aware of any mobile wallets that have that ability built into them.
thanks
You're welcome.
Let have the following scenario:
1- wallet A online
2- full synced wallet A
3- bring the wallet A offline
4- create a RAW transaction from wallet A
5- copy/share the raw transaction from wallet A
5- use another wallet B online
6- paste / spread the RAW transaction from the online wallet B
Questions:
1- is it possible to generate a RAW transaction even if the wallet is in offline mode and not synced? I think so.
2- Wallet B online can spread the RAW transaction provided by someone else? I think so.
3- while the wallet A is offline, if I spent some BTC from another online wallet and using output that I want to include in my RAW transaction, the RAW transaction is generated correctly, but will be invalidated (attempt of double spent?).
4- Security issues?
Is it possible to generate offline transaction with a mobile wallet (Ie. Android app)?
thanks
1- wallet A online
2- full synced wallet A
3- bring the wallet A offline
4- create a RAW transaction from wallet A
5- copy/share the raw transaction from wallet A
5- use another wallet B online
6- paste / spread the RAW transaction from the online wallet B
Questions:
1- is it possible to generate a RAW transaction even if the wallet is in offline mode and not synced? I think so.
2- Wallet B online can spread the RAW transaction provided by someone else? I think so.
3- while the wallet A is offline, if I spent some BTC from another online wallet and using output that I want to include in my RAW transaction, the RAW transaction is generated correctly, but will be invalidated (attempt of double spent?).
4- Security issues?
Is it possible to generate offline transaction with a mobile wallet (Ie. Android app)?
thanks
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