Design a Peer-to-Peer Network

Functional Requirements:

• Peer Discovery: Each node should be able to find and connect with other peers in the network.
• File/Data Sharing: Peers must be able to share files or data directly with each other.
• Data Integrity: The system should verify that data received from peers is not corrupted or tampered with (e.g., using checksums or hashes).
• Dynamic Membership: The network should handle peers joining and leaving at any time without disrupting ongoing operations.
• Resource Availability: Peers should be able to request and access shared resources from others.

Non-Functional Requirements:

• Scalability: The network should support growth to thousands of peers without significant performance degradation.
• Security: Data transferred between peers should be encrypted, and the system should defend against malicious actors.
• Redundancy: The system should ensure that data is not lost when peers leave, by replicating data across multiple nodes.
• Performance: Data sharing should have low latency and reasonable throughput for typical file sizes.
• Fairness: No single peer should be able to monopolize resources or bandwidth.