Welcome to the SPHERE (Secure Peer-to-Peer Hosted Encryption Record Exchange) repository!
SPHERE is a highly secure, decentralized framework designed for peer-to-peer communication, encrypted data exchange, and decentralized identity management. It offers robust privacy, data integrity, and cryptographic security while maintaining scalability and efficiency for various applications.
This project is a work in progress, with ongoing improvements to enhance security, scalability, and decentralized efficiency.
- Unified, decentralized contact list across all SPHERE applications.
- Full user control over contacts, including key rotation and access permissions.
- Peer-to-peer (P2P) architecture eliminates reliance on centralized servers.
- Uses AES256, RSA2048, and ECDsa algorithms for top-tier security.
- Dynamic key generation for each communication session.
- Private keys stored in secure local containers (CNG) without export unless explicitly allowed.
- Built on a Distributed Hash Table (DHT) for efficient peer discovery and data exchange.
- Uses a Kademlia-based routing table to optimize node connectivity.
- Integrated Gossip Protocols for propagating data across the network.
- Plug-and-play modules for encryption, authentication, routing, and token management.
- Scales efficiently even in resource-constrained environments (e.g., mobile clients).
- Verifies message authenticity and integrity using ECDsa signatures.
- Prevents tampering and validates the origin of messages.
- Implements a token system for peer validation and incentivized interactions.
- Tokens are issued for completed actions (e.g., message relays) and spent on data requests.
- Dynamic trust scores based on peer behavior and network contributions.
- Penalizes malicious actions and rewards reliable participation.
- Adaptive sharding splits the DHT into manageable chunks.
- Dynamic load balancing ensures efficient resource use across nodes.
- Implements symmetric and asymmetric encryption.
- Hybrid key management for secure communications.
- Encrypted local symmetric keys (LSK) for contact data confidentiality.
- Defines and serializes packets for node-to-node communication.
- Includes validation for packet types, TTL, and cryptographic signatures.
- Manages encryption keys bound to service accounts for added security.
- Uses CNG containers that prevent unauthorized key access.
- Handles decentralized storage and retrieval of contact, reputation, and transaction blocks.
- Uses a Kademlia-based routing algorithm for efficient node lookups.
- Handles all network communication between nodes.
- Integrates STUN/TURN for NAT traversal and port discovery.
- Evaluates node behavior based on network participation.
- Adjusts reputation scores dynamically.
- End-to-End Encryption: Each message is securely encrypted from sender to recipient.
- Secure Key Exchange: Uses Diffie-Hellman key exchange for secure session initiation.
- Digital Signature Verification: Validates message authenticity and integrity.
- Anti-Replay Protection: Prevents replay attacks using timestamped messages and nonces.
- Visual Studio 2022 or later
- .NET Core SDK
- Basic understanding of distributed systems and C#
git clone https://github.com/yourusername/SPHERE.git- Open
SPHERE.slnin Visual Studio. - Build the solution to restore dependencies.
- Run the project and bootstrap the network using available nodes.
We welcome contributions! Please fork the repository, create a feature branch, and submit a pull request. Issues and feature suggestions are also encouraged.
This project is licensed under the GPLv3 License.
- Inspired by the need for secure and decentralized communication.
- Special thanks to contributors and the open-source community for ongoing support.
For questions or support, contact kl3mta3 through GitHub or via email.