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53 lines
2.2 KiB
Markdown
53 lines
2.2 KiB
Markdown
---
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layout: doc
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title: Split Bitcoin
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permalink: /doc/split-bitcoin/
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---
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How to Set Up a Split Bitcoin Wallet in Qubes
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=============================================
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What is a "Split" Bitcoin Wallet?
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---------------------------------
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A "split" bitcoin wallet is a strategy of protecting your bitcoin by having your wallet split into an offline "[cold storage](https://en.bitcoin.it/wiki/Cold_storage)" wallet and an online "watching only" wallet.
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A "Watching" Wallet and a "Cold" Wallet
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---------------------------------------
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1. Create a fedora-25-electrum template using the Qubes VM Manager or running
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`qvm-clone fedora-25 fedora-25-electrum` in dom0.
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2. Start the new template:
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`qvm-start fedora-25-electrum`
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`qvm-run fedora-25-electrum xterm`
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3. Install `electrum` to fedora-25-electrum template VM. From fedora-25-electrum terminal enter:
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`sudo dnf update`.
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`sudo dnf install electrum`.
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4. Shut down your `fedora-25-electrum` template
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5. Create an `offline-bitcoin` qube based on `fedora-25-electrum` using the Qubes VM Manager or running `qvm-create -t fedora-25-electrum -l black offline-bitcoin` and `qvm-prefs -s offline-bitcoin netvm none` in dom0.
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6. Follow the [electrum documentation in creating an offline wallet](http://docs.electrum.org/en/latest/coldstorage.html#create-an-offline-wallet)
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7. Create a `watching-bitcoin` qubes based on `fedora-25-electrum` connecting to the internet how ever you prefer using the Qubes VM Manager or running for example `qvm-create -t fedora-25-electrum -l green watching-bitcoin` and `qvm-prefs -s watching-bitcoin netvm sys-whonix` in dom0.
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8. Follow the [electrum documentation in creating an online watching-only wallet](http://docs.electrum.org/en/latest/coldstorage.html#create-a-watching-only-version-of-your-wallet)
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Important Notes
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---------------
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* The private keys (xpriv) should never be moved outside of `offline-bitcoin`.
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* For copying out the public keys (xpub), Qubes provides two secure, convenient
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methods: the [inter-VM clipboard] and [inter-VM file copy] tools. Compared to
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traditional physically air-gapped machines, these tools makes it very easy to
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copy out public keys.
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[inter-VM clipboard]: /doc/copy-paste/
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[inter-VM file copy]: /doc/copying-files/
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