razvanberbece / zrd Goto Github PK

PoW Blockchain network built in C#. Supports the ZR420 cryptocurrency. Supports decentralised storage and transaction forwarding through peer-2-peer networking.

License: MIT License

C# 100.00%

blockchain crypto token dotnet cryptocurrency bitcoin cyptography zrd zrd420 peer-to-peer

zrd's Introduction

ZRD

Local blockchain network built in C# and dotnet. Supports the ZR420 cryptocurrency and user wallets for transactions (send, receive).

Uses .net6.0 and nUnit for testing.

Progress

[IN PROGRESS] Models (Block, Transaction, Blockchain, Merkel Tree)

[IN PROGRESS] Storage Considerations & Solution

[IN PROGRESS] Nodes (Full Node, Lightweight Node, Miner Node)

[COMPLETED] Genesis Block

[COMPLETED] Minting (NOTE: this is not applicable as ZRD will use the PoW consensus mechanism. minting uses Proof of Stake)

[COMPLETED] Mining

[COMPLETED] Process Transactions (send, receive, rewards, etc.)

CI/CD

CI

Continuous integration is implemented using GitHub Actions and runs dotnet build and dotnet test in a dotnet environment. This runs the test harness on all Pull Request events.

To see the CI workflow file, visit continuous-integration.yml

CD

Releases are automatically created on push events to the main branch.

Pipeline work in progress.

To see the CD workflow file, visit continuous-deployment.yml

Resources

zrd's People

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zrd's Issues

Implement stability indicators for PeerDetail to be appended to Peers.json

This should help with picking more stable peers over others, leading to better communication faster transaction forwarding, block mining, etc.

Research on storage considerations

Blockchain state storage ?
Sharding ?
What else could be used to save the blockchain and its state and blocks

Implement Outstanding from # Current State (04 Sep 2022)

Current State (04 Sep 2022)

Currently, out of the whole workflow, the following work :

Light Nodes sending unconfirmed transactions to Full Node peers to add to mempool
Light Nodes querying their balance on the Full Node peer Blockchain state
Full Nodes downloading initial full Blockchain state from other Full Nodes
Full Nodes broadcasting full Blockchain state to other Full Nodes
Full Nodes accepting incoming new full Blockchain states from Full Nodes
Miner Nodes downloading initial full Blockchain state from other Full Nodes

To Implement :

~~Miner Nodes accepting incoming new states from Full Nodes~~
~~Miner Nodes mining unconfirmed transactions in mempool~~
Miner Nodes broadcasting new full Blockchain state to other Full Nodes

Originally posted by @RazvanBerbece in #9 (comment)

Develop Further Test Coverage

More Unit Tests
More Integration Tests
Acceptance Tests

Extra resources:

Mocking
TestContainers

Implement Software Wallet Seed Functionality

This will allow generating the wallet keys from the seed phrase.
Helps with :

Data loss
Data corruption
Data deletion
Wallet recovery

SignTransaction() error when using locally loaded Wallet

Next Steps

Check the Wallet(string, string, string = def) constructor in the Wallet class. This issue probably has something to do with how the public and private keys are loaded. The underlying RSACryptoServiceProvider might need more configs passed to it to create the correct object and respectively the correct "value" for rsa.ImportParameters(wallet.GetKeyPairParams());

Stack Trace

Error occured in SignTransaction(): System.Security.Cryptography.CryptographicException: Value was invalid. at System.Security.Cryptography.RSACryptoServiceProvider.ImportParameters(RSAParameters parameters) at TransactionNS.Transaction.SignTransaction(Wallet wallet) in /Users/razvan-antonioberbece/Desktop/Projects/Blockchain/ZRD/ZRD - TESTING 1/src/Transaction/Transaction.cs:line 72

Transaction Example

{
  "Sender": "key1",
  "Receiver": "key2",
  "Amount": 420,
  "Id": "22b41a82-fec6-402a-a1e3-2464b04b8edf",
  "Hash": "66cff04febf5afb0f6af42688c10edbda023c1e99ff4e6d818bb7bee36986d4a",
  "Signature": null
}