Do not share it! What is a Decentralized Application? Using an off-line wallet with backups and encryption is also good practice. Smart printers save copies of what they print and may be vulnerable to super-smart viruses. For long-term storage of bitcoins or giving as gifts it's not safe to store your bitcoins in an exchange or online wallet.
Tamper Resistant One risk with a paper wallet is that someone with physical access to your wallet may "sneak a peek" at the private key and withdraw your funds without your knowledge. As you may know, there are plenty of ways to store Bitcoin: Based on the results, adjust the "zoom" and "horizontal shift" in the upper-right corner of this page and keep printing tests until: Use these details to print a paper wallet Check Balance. Simple to access, however, throughout the history of bitcoin this method has shown that it was the least secure because of hackers and website closures that store your bitcoins. You may also type in a "brain wallet" passphrase to see the corresponding SHA hashed keys.
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If you are using Chrome and you launched this paper by opening the HTML file from your own computer "locally", using may need wallet launch Chrome from the command line and colors the flag. A common misconception that Bitcoin beginners often have is that once they open designs wallet, their wallet is always connected to the Bitcoin network where they can take part in transactions. New Wallet Enter my own key Upload my design If you are making a paper wallet for a vanity addressor duplicating an existing paper wallet: Enter paper scan any private key to verify that the key is valid and using its corresponding public key. Private Colors Base64 bitcoin characters: Your browser should display a message requesting access bitcoin your camera. Make Security Move your mouse to generate a combination of numbers designs random letters, they allow you to improve security by generating with your wallet a completely unique wallet.
If your private key validates, then you may be reassured that you will able to retrieve any funds sent to that wallet. To duplicate or BIPencrypt any paper wallet , just validate its private key and click the "Use these details to print a paper wallet" button.
Is your wallet BIP38 encrypted? If so, you can use this form to decrypt your private key and recover the standard Wallet Import Format WIF key suitable for wallet software and services that don't directly support BIP38 importing. You may also type in a "brain wallet" passphrase to see the corresponding SHA hashed keys. Your browser should display a message requesting access to your camera.
Please click the "Allow" button to enable the camera. If you are using Chrome and you launched this generator by opening the HTML file from your own computer "locally", you may need to launch Chrome from the command line and specify the --allow-file-access-from-files flag.
Or you can set up a local web server Apache and run this generator via http: Use these details to print a paper wallet. This may take up to several minutes on a slower computer. Decrypting the private key. For help, security tips, or wallet making supplies visit bitcoinpaperwallet. Let's print out a beautiful and secure wallet for your s. Here's an overview of what will happen, step by step. Are you using a secure operating system installation guaranteed to be free of spyware and viruses, for example, an Ubuntu LiveCD?
If you are making a paper wallet for a vanity address , or duplicating an existing paper wallet: In this case, simply enter your private key in Wallet Import Format or scan it using the "validate" feature on this web page. WIF keys always begin with the number 5 and look something like this: Instructions Write your own Validate or decrypt private key This feature works for private keys made here as well as those generated using any other Bitcoin service or software, e.
Try using a recent version of Firefox recommended , Chrome or Opera. Please type in passphrase below: Public and private details for: Use these details to print a paper wallet Use the Public Address to receive funds or check your balance online. The Private Key WIF is a code that needs to be keep secret since it can be used to spend any funds that have been sent to the corresponding public key.
Keys can be encoded in a number of different formats. Display compressed format keys? Many online services e. Plan on importing your entire balance. Afterwards, discontinue using the paper wallet—as if you were breaking open a piggy bank. If you try to spend or withdraw only a portion of your funds, you risk losing the remaining balance forever. Add funds to your wallet as often as you like, but withdraw them all at once—otherwise your balance may disappear forever.
Your wallet may be vulnerable to prying eyes when you are generating the keys and printing them out. Although the wallet generator on this website is SSL-encrypted, it's still possible for someone to be snooping on you. For example, your computer might have malware that broadcasts your screen to a remote location.
The most important safety measure is to go offline and run the javascript wallet generator on your own computer instead of this website. You can order the Ubuntu LiveCD from this site which comes with the wallet generator securely pre-installed. If a hacker or virus gets into your computer and knows to look for these cache files, then they can get your private keys and "sweep" your wallets.
Here are some tips on how to securely delete your printer "spool" files. Learn how to delete your printer cache files after printing secure documents. Hey, do you know much about printer spools on your operating system? I need your help for this section! Never take that install online. Some advanced printers have internal storage even hard drives that preserve copies of printouts. This is a risk if someone gets access to your printer, or if you dispose of your printer.
There is also the possibility that a smart enough printer can be hacked. This isn't quite tinfoil-hat level paranoia, as we've seen examples in the wild of viruses that rewrite the firmware of non-computer devices indirectly connected to the Internet. If this concerns you, don't use a fancy printer, and never let your printer have access to the Internet or to an Internet-connected computer. Smart printers save copies of what they print and may be vulnerable to super-smart viruses.
Use a dumb offline printer whose firmware can't be reprogrammed. There's no need to follow all of these precautions. If you're just generating some give-away wallets for fun or to store small amounts of bitcoin, relax.
Just use the online wallet generator on a trusted computer over a secure Internet connection. For storing larger amounts, follow as many of these security precautions as you can. I love how it's elegant, functional, philosophical, and radical.
Unfortunately, for folks not steeped in cypherpunk ideology and network security, bitcoins are hard to understand, hard to purchase, and hard to keep safe. The primary purpose of this site is to make it easier to keep your coins safe once you've gone through the hard work of acquiring some.
The secondary purpose of this site is to encourage you to expand the understanding and acceptance of Bitcoin by loading up and giving away these beautiful and fairly idiot-proof paper wallets. Donate bitcoin , because you have some. How to make a paper bitcoin wallet Why trust this site? Tri-Fold Template This bitcoin key generator guides you to print both a front side and a back side for your paper wallet.
Tamper Resistant One risk with a paper wallet is that someone with physical access to your wallet may "sneak a peek" at the private key and withdraw your funds without your knowledge.
Perfect for Giving Want to give bitcoins to someone who isn't tech-savvy? How many hologram stickers do you want? Crystal-clear and specially sized for this design. High quality vinyl stickers that will last for years, even outdoors. Email is for shipping notices. Keeping it Safe The biggest threat to your wallet isn't an evil WiFi packet-sniffing robot.
Here's what a tiny bit of water will do to an inkjet-printed wallet: How to run this wallet generator offline You can order the Ubuntu LiveCD from this site which comes with the wallet generator securely pre-installed OR: Turn off your Internet connection. Power off the modem! Print out your wallet s. Reboot your computer and power cycle your printer before going back online. How to delete pesky printer cache files Macintosh: Enable 'FileVault' to encrypt your filesystem so that cache files cannot be 'undeleted'.
Use an encrypted filesystem so that your cache files cannot be 'undeleted'. Read this FAQ on how to change the destination of your cache spool files to removable media. Use a live-boot CD instead of a regular hard drive OS install. This way when you reboot your computer, all cache files are deleted from memory and no jobs are ever written to disk.