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This is a good Idea. But I have doubt, Can we create papper wallet with that raw HTML files ? There is not using any Server side scripting like PHP and ASP? If no, no need to connect with Internet. If need to load PHP or ASP scripts, Not possible to create papper wallet without connecting with Internet.
since you only want to make a paper wallet i would say buying an old (second hand) computer is riskier than just using your own computer and it will cost you. if you are willing to spend then buy a hardware wallet.
and if you want to do it cheap then use a live linux without persistance as i suggested, you want to print the result anyways so you don't need to keep anything.
and as for that HTML file, it uses javascript to generate the private keys and it needs not internet connection, it only needs any of the modern browsers that support it. you can see all about it here:
https://github.com/pointbiz/bitaddress.orgedit for screenshot:
p.s. in the end what you do is mostly a matter of preference. i run an Electrum wallet on my USB stick for instance
Nope, I disagree. The whole point of the old second hand computer, is to eliminate all external access to any logged data by malicious software, that might reside on the computer. Even booting with another OS, will not remove that risk. Some malicious code are stored in firmware. < Take the Cisco routers as a example >
If nobody can ever gain access to that "offline" computer, then the private key generated on there would be safe. You will have to destroy the hardware, if you want to be 100% sure that nobody would retrieve any information from these devices.
This might sound a bit overkill, but if you are going to store 1000's of coins on these paper wallets or if 1 bitcoin goes up to $100 000/
BTC, then you want these paper wallets to be secure.
I create 100's of paper wallets and then I push small quantities to them. If I need to use some, I do not have to sweep a single wallet with a large amount and then transfer the unused coins back to a new wallet. I just sweep a private key, and destroy the wallet. < You cannot re-use it after you sweep it, because the theory is once it was exposed to the internet, it is most probably compromised. >