Generating And Encrypting Bitcoin Addresses And Keys On Arduino

16.12.2020
42 Comments

JavaScript component for private keys, public keys, and addresess for crypto currencies such as Bitcoin, Litecoin, and Dogecoin. Works in both Node.js and the browser. Reusing the same Bitcoin wallet address is a big privacy issue. If you have a simple e-shop or a website which asks for donations you may want to consider generating unique addresses for each transaction instead. There are numerous payment systems such as Bitpay that do all the hard work for you. The drawback is that they are in charge of your private keys. You may implement your own simple. Bitcoin uses point multiplication on the Elliptic Curve secp256k1 to generate a public key from a private key. Basically, this curve has a defined Generator point G, and a method for 'adding' two points together in a way to get a new point (EC Point Addition).Your private key is just a number, aka a Scalar, so to get your public key you just add the generator point to itself privkey number of.

Generate Bitcoin Addresses Using Arduino

Setup

  1. Download all necesary files
  2. Run Setup.sh if on Mac or linux or Setup.bat for Windows(not tested)
  3. Copy the folder Entropy to your Arduino Libraries folder or in the Arduino IDE click sketch>import library>add library and find the Entropy folder

Usage

  1. Connect your Arduino
  2. Open the file Random_Address.ino inside of the Random_Address folder in the download
  3. Make note of where the Arduino IDE says your Arduino is connected (bottom right-hand corner)
  4. Upload the sketch to your Arduino
  5. In terminal run 'cd ~/[PATH_TO_DOWNLOAD]' and then 'python generate.py'
  6. When it asks what port arduino is connected to, type in the info from step 3
  7. Choose whether you want to generate a new address (CANNOT BE UNDONE) or read out an existing address
  8. If you chose to generate a new one, wait for it to generate, then you can readout either the Public Address or the Private key in WIF
  9. It will show in the command line whichever one you chose and also make a QR code of it in the folder you are running it from

Security

This is a way to generate a Bitcoin private key which can then be used to send and recieve bitcoin. This way is not entirely secure. I would recomend using a computer that has never touched the internet or a raspberry pi that has never touched the internet. If anyone gets your private key they also get full control of your bitcoins.

Disclaimer

This is my first bitcoin code and I am new to python.

Update

Now using the Entropy library on Arduinos that support it (i.e. Arduino Uno and newer Arduino Megas). This library is tested to be random. It is useful in cryptographic situations, such as this one.

Private keys are now written to the EEPROM on the arduino. Using the sketch Read_EEPROM.ino will readout the key that is stored on the arduino. You can see this in the arduino serial monitor in hex, or you can run it with generate.py to re-generate a compressed private key or a public address. IT ONLY STORES ONE PRIVATE KEY AT A TIME. EVERYTIME YOU RE-RUN THE RANDOM ADDRESS CODE, YOUR PRIVATE KEY WRITTEN ON THE ARDUINO IS OVERWRITTEN.Everything is compressed into one arduino sketch and one python script.

If you have any questions or suggestions, please feel free to leave them in the github, or email me at jujugoboom@gmail.com. Thanks for trying this out. I hope you find it as fun and interesting as I.

Addressgen is a utility to generate private keys and their correspondingaddresses for cryptocurrencies based on secp256k1. Currently, only Bitcoin,Dogecoin, and Litecoin are supported, but in the future I will add support formore.

Generating And Encrypting Bitcoin Addresses And Keys On Arduino Pdf

Addressgen is tested on Linux and Windows, requires Python 3.3 and a copy oflibeay32.dll (Windows, obtained from OpensSL packages) or libssl.so (linux,openssl package).

Garmin product key generator 2015. Run 'python3 genaddress.py'

Arguments

Examples

$ python3 genaddress.py

$ python3 genaddress.py -p 'correct horse battery staple'

Generating And Encrypting Bitcoin Addresses And Keys On Arduino Code

$ python3 genaddress.py -t -c

Generating And Encrypting Bitcoin Addresses And Keys On Arduino Code

Wpa2 psk raw key generator. $ python3 genaddress.py -n doge