currently I am using an electrum wallet on watching only mode and using a usb stick that stores my private key whenever I need to send BTC to someone. I would like to do something similar for my ether and cardano but am having trouble finding an open-source cold wallet alternative that would be compatible with a usb stick. How could I accomplish something similar? What programs can be used? Is there any open source software to do this? Thanks for any responses in advance!

  • Is there a reason why you don't buy a ledger nano or Trezor?
    – Undead8
    Commented Jun 8, 2021 at 19:01
  • I do not think it is worth it to buy one for the amount of crypto I am storing and I think it is safer to use a usb stick with completely open source software instead of the leger nano.
    – Python 123
    Commented Jun 8, 2021 at 19:16

1 Answer 1


USB can easily be scanned by a virus to retrieve data on your USB. Hardware wallet are better because they can't output sensitive data.

Cold wallet mean cold so better to use a full offline computer or even old phone. You can add BIP39 to it, and MyEtherWallet to sign transaction. I don't know for cardano though, you can't even generate cardano with Ian Coleman's BIP39.

  • I'm worried about using a hardware wallet because even that could be running malicious code. I think usb or a raspberry pi is the option I will end up using. Do you know any way to do this on a raspberry pi?
    – Python 123
    Commented Jun 9, 2021 at 5:00

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.