How to create OFFLINE Transaction?

[Dabs]

It doesn't even have to be new. You can repurpose an older laptop (erase/wipe, partition, format).

From the savings, buy another router, and connect the bitcoin laptop behind it. Your netbook is now behind at least two routers, and two firewalls.

[Meuh6879]

but it work flawless.
no need to trust 3rd party of a live CD ... for example.

and even a USB1.1 port can store the backup of bitcoin core.

[deluxeCITY]

1) buy a new laptop (netbook, under the 250 USD)
2) install bitcoin core
3) do transactions
4) don't use this netbook to do others things

that's all.

price : 1 BTC.

It doesn't even have to be new. You can repurpose an older laptop (erase/wipe, partition, format).

From the savings, buy another router, and connect the bitcoin laptop behind it. Your netbook is now behind at least two routers, and two firewalls.

but it work flawless.
no need to trust 3rd party of a live CD ... for example.

and even a USB1.1 port can store the backup of bitcoin core.

While these are all good suggestions, none would technically create an offline transaction, as they would all be technically online (although the setup would be safer then many setups that many people have).

For the truly paranoid (usually rightfully so as many people have made a lot of money stealing bitcoin from others) you would need to use a computer that has never touched the internet, nor will ever touch the internet in order to generate and store your private keys.  

[BTCIndia]

Thanks guys for detailed explanation!

[coolmyrig]

I have a idea,how about send it out with a local area network ?

[BTCIndia]

I have a idea,how about send it out with a local area network ?

Then its not offline.

[CIYAM]

The CIYAM Safe (https://susestudio.com/a/kp8B3G/ciyam-safe) is a Live OS that facilitates performing 100% air-gapped offline tx signing via QR codes.

[BTCIndia]

The CIYAM Safe (https://susestudio.com/a/kp8B3G/ciyam-safe) is a Live OS that facilitates performing 100% air-gapped offline tx signing via QR codes.

Thanks! Any youtube link to understand how it do it.

[CIYAM]

Thanks! Any youtube link to understand how it do it.

Sorry - I am more of a hardcore dev than a youtube video creator.

At the moment I am also rather busy on other things - but if there is more interest in the CIYAM Safe then I might put some more effort in making it "easier to use" (it works perfectly but does require you to run bash scripts which I understand might be a bit too hard for many potential users).

[cryptworld]

you can send a transaction offline,and after that connect to the internet
in that moment,the bitcoins will be sent

[BTCIndia]

At http://www.btcguys.us/blog/how-to-create-offline-wallet-with-electrum-bitcoin-client-and-broadcast-transactions, this will help you easily.....Now try it! 

That's really simple explanation for guy like me. Thanks! It suggests following:

Things you will need:
1. two Windows 7 PC, one with internet and one without internet
2. Electrum Bitcoin Client: https://electrum.org/download.html
3. WinMD5Free http://winmd5.com
4. USB 50MB or more

Can I use DVD everytime rather than 50MB USB? I don't trust USB anymore.