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GroupKey_SmartContract_Diffie-Hellman

A web tool used to establish Group Key Encryption via Diffie-Hellman by using a Smart Contract.

Requirements:

  1. The necessary JavaScript script dependencies need to be added.
  2. A web testing environment is required. (XAMPP is recommended for local testing)
  3. MetaMask tool needs to be installed and configured.
  4. The userManager.sol or old_userManager.sol smart contract needs to be transacted to a distributed blockchain and linked to the dApp. (Either private, main, or Ropsten recommended)

The main difference between userManager.sol and old_userManager.sol is that old_userManager.sol parses the string inside the smart contract whereas userManager.sol leaves that job to the client. Parsing strings inside a smart contract is operation intensive which translates to more gas which translates to inefficiency.

I have authored a paper that was accepted to IEEE that describes the operation of this distributed application in closer detail.

Paper Link: Private Group Communication in Blockchain via Diffie-Hellman Key Exchange