A Leakproof Secret Sharing Scheme Based on Environment Sensing

A leakproof secret sharing scheme based on environment sensing is proposed, in which the shadows of participants and the shared secret are leakproof, and can be used repeatedly. The counterfeit shadows of the participants and the authentication information of the shared secret can be changed dynamically basing on environment sensing. So the scheme is secure even against a mobile adversary. Besides, through introducing the concept of adversary structure and the transformation of access structure to adversary structure, the secret sharing on general access structure is realized. Compared to the existing schemes, our scheme is more secure and more flexible in practice. Our scheme is particularly suitable for the system which needs to run long time in the open, such as the wireless sensor network and the multi-robots, the property of leakproof based on environment sensing can improve the efficiency and security of these systems effectively.