Abstract
Air pollution, water pollution, soil erosion, land desertification, and other environmental issues are becoming more and more serious. And ecological security has become a key issue for the sustainable development of the world, so research on ecology has received more and more attention. At present, ecological data is collected and stored separately by various departments or agencies. In order to conduct better research, various institutions or individuals begin to share their own data. However, data sharing between different organizations is affected by many factors, especially data security issues. At the moment, there is no scheme that has been commonly recognized to solve the problem of ecological data sharing. To provide a secure data sharing way for ecological research, a certificateless multireceiver signcryption scheme is proposed. In this paper, the proposed scheme can solve the key escrow problem, and it can improve efficiency on the basis of ensuring security by adopting elliptic curve cryptography (ECC). A rigorous security analysis proves that the scheme can resist various security attacks and ensure privacy protection based on a random oracle model. Performance analysis also shows that this scheme has the advantage of computational overhead compared to the same type of scheme. Therefore, the scheme is very suitable for the safe sharing of ecological data.
Highlights
Ecological data is receiving more and more attentions nowadays
Through the analysis of the schemes, we found that the multirecipient signcryption scheme is required to solve the main problems as below during the communication process: (1) Key escrow problem: malicious key generation center (KGC) can forge encrypted ciphertext and decrypt ciphertext, which dramatically reduces the confidentiality of the message
If the probabilistic polynomial time (PPT) algorithm A can solve CDHP, the probability advantage is specified as CDHP hypothesis: we believe that AdυCADHP can be ignored for any PPT algorithm A.(2) elliptic curve discrete logarithm problem (ECDLP)
Summary
Ecological data is receiving more and more attentions nowadays. It plays an important role in global climate change prediction, ecological network observation and simulation, regional air pollution control, and so on. In order to prevent malicious KGC attacks, we need to solve the key escrow problem (2) The calculation efficiency is not ideal: in the process of encryption or decryption, BPO or a large number of SPMOOECC will result in inefficiency. The attacker cannot obtain the information of the receiver, and the receiver does not know the information of other receivers (2) The scheme uses a certificateless method and can perform partial private key verification It solves the key escrow problem and ensures the correctness of some private keys received from KGC (3) The scheme is of high efficiency.
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