一种基于地址编码的高效区块链隐蔽通信模型OA

Traditional covert communication relies on direct interaction between communicating parties,which suffers from weak anonymity,vulnerability to tampering,and traceability.The inherent features of blockchain—such as anonymity,decentralization,and flooding-based broadcasting—provide a more secure channel for covert communication.To address the challenge of balancing security and transmission efficiency in existing blockchain-based covert communication schemes,this paper proposes a novel covert communication model based on a public blockchain.The proposed model introduces an innovative address encoding scheme,in which an address sequence is generated using a shared secret key between communicating parties.Address selection rules are then negotiated and applied separately for transaction identification and message encoding.Only legitimate receivers can identify covert transactions and decode the embedded messages.The proposed scheme demonstrates strong resistance to detection,high reliability,and unlinkability.Experimental results show that it effectively achieves a balance between transmission efficiency and security.