Abstract—Blockchain is a new technology that overcomes threats and allows decentralization of sensitive tasks while maintaining high performance. security. It eliminates the need for trusted intermediaries. Blockchain is a new technology that provides a decentralized platform that ensures data integrity, transparency, traceability, anonymity, non-repudiation, accountability and non-tampering. Blockchain accesses all network nodes and tracks all transactions taking place. The aim of our work is to propose secure communication based on blockchain technology. In this project, we explain why blockchain will make communication more secure and present a design for blockchain-based messaging to protect the efficiency and security of data stored on the blockchain. The system is a combination of blockchain and cryptographic methods of communication.