Bitcoin Forum

Hey guys , what the best and safest website / program to generate a bitcoin wallet that I can print off to put on DIY coins. I know airgapped laptop and printer are necessary. Currently all I know is bitcoinaddress.org and i've heard that is not the safest.

Any advice from those with experience with this would be much appreciated.

Thanks,

Krispy   

Never use a website… if you have a qt wallet you can generate addresses and keys easily - just never do it on a pc that is online or ever will be online. Use air-gapped system only.

If vanity - install samr7 vanity gen - again use air-gapped system

Adding link: https://github.com/samr7/vanitygen

There are other ways and I am sure a few other key makers will add to this.

  I use a Mycelium Entropy device for all of my items.
  https://mycelium.com/mycelium-entropy.html

  I also buy them as part of my Bitcoin history collectable items

If you cannot find one....and they are impossible to find...do the following...

  Use a Trezor. Reset the device....get a new seed created and use that to place under the Holo and use the corresponding public address for the loading part.

   You can then reset and do as many times as needed to get as many new addresses as you want made.

  And it goes without saying...use the following as well .

   Air gapped computer
   Air gapped printer
   Water proof paper
   https://bitcointalk.org/index.php?topic=5296179.0

   I also recommend if you use any other device instead of just a qr code for priv key also print a second one with the alphanumeric key as well. Just my two Satoshi...that's what i always do anyway.

  Hope that helps.

And definitely DO NOT USE www.bitcoinpaperwallet.com

https://www.coindesk.com/tech/2021/02/24/bitcoinpaperwallet-back-door-responsible-for-millions-in-missing-funds-research-suggests/?outputType=amp

   It was great when Canton owned it...but he sodl it years ago and it looks like people lost BTC under the new owners

  I used the program years ago when I bought from Canton the CD to run on my airgapped computer and my BTC was never compromised.

  This BIP38 digital stamp has been online since 2017 and the 0.02 BTC has never been compromised or swept...so the code I bought was genuine back then

http://www.crypto-stamps.com/private3.html

yes - that is why its so important to use airgapped pc - like for installs or updates, I install the update to a new jump drive using my reg pc, install to the airgapped system and toss the jumpdrive. nothing from the airgapped system goes online ever.

First off, don't use a website to generate keys.  Ever.  That's ridiculous.

I would be curious what you will be using the address for.  You mention DIY coins, but do you need 1 or 2 addresses or hundreds of addresses?  Do they need to be vanity addresses or will any old address work? 

The easiest way is probably to use something like Electrum or Bitcoin Core on an offline computer.  Slightly more difficult would be to use a vanity generator program, but that would give you more addresses quickly and you could also specify the beginning of your addresses.  Anything else would probably take a little bit of knowledge.

Generating keys from third parties is kind of nonsense.
How can you be sure that they are a "trustable" source and have followed all the steps to generate safe keys?

I suggest you take a look at this site / project https://glacierprotocol.org/ which explains in detail how to create a wallet in an absolutely secure way (state-of-the-art).

Some steps can be really laborious/not easy at all if you're not confident with these arguments, but anyway you will find details about all possible risks associated to keys creation and how to avoid them.