/ECDSA-Node

Experiment to play with ethereum-cryptography library. From Alchemy University's 1st week

Primary LanguageJavaScriptMIT LicenseMIT

ECDSA Node

This project is an example of using a client and server to facilitate transfers between different addresses. Since there is just a single server on the back-end handling transfers, this is clearly very centralized. We won't worry about distributed consensus for this project.

However, something that we would like to incoporate is Public Key Cryptography. By using Elliptic Curve Digital Signatures we can make it so the server only allows transfers that have been signed for by the person who owns the associated address.

Notes

This is application is ONLY for educational purposes.

There is section to play around with:

  • generating public keys from private keys
  • generating digital signatures
  • authenticating a transaction ONLY if the private key signed the digital signature.

Further extensions can be added.

Video instructions

For an overview of this project as well as getting started instructions, check out the following video:

https://www.loom.com/share/0d3c74890b8e44a5918c4cacb3f646c4

Client

The client folder contains a react app using vite. To get started, follow these steps:

  1. Open up a terminal in the /client folder
  2. Run npm install to install all the depedencies
  3. Run npm run dev to start the application
  4. Now you should be able to visit the app at http://127.0.0.1:5173/

Server

The server folder contains a node.js server using express. To run the server, follow these steps:

  1. Open a terminal within the /server folder
  2. Run npm install to install all the depedencies
  3. Run node index to start the server

The application should connect to the default server port (3042) automatically!

Hint - Use nodemon instead of node to automatically restart the server on any changes.