CFP: Continuous Fluidity Protocol for Blockchain Sharding

Implementation of the Continuous Fluidity Protocol (CFP) for secure blockchain sharding.

Overview

Sharded blockchains face the committee capture problem: adversaries can gradually infiltrate shard committees to compromise consensus. CFP solves this through:

• Continuous Validator Rotation: VRF-based probabilistic rotation prevents static committee targeting
• Consensus Friction Index (CFI): Real-time anomaly detection identifies coordinated attacks
• Cross-Shard Transactions: Secure 2PC protocol with cryptographic proofs

Project Structure

CFP-Blockchain-Sharding/
├── core/
│   ├── block.py
│   ├── blockchain.py
│   └── transaction.py
├── sharding/
│   ├── validator.py
│   ├── shard.py
│   └── network.py
├── cfp/
│   ├── fluidity.py
│   ├── cfi.py
│   ├── cross_shard.py
│   ├── partitioning.py
│   ├── attack.py
│   └── benchmark.py
├── evaluation/
│   └── publication_evaluation.py
├── requirements.txt
└── README.md

Installation

# Clone
git clone https://github.com/HadisRe/CFP-Blockchain-Sharding.git
cd CFP-Blockchain-Sharding

# Virtual environment (recommended)
python -m venv venv
venv\Scripts\activate  # Windows
# or
source venv/bin/activate  # Linux/Mac

# Install dependencies
pip install -r requirements.txt