An Improved Efficient Certificateless Hybrid Signcryption Scheme for Internet of Things

The Internet of Things (IoT) is a vast perceptual network formed by variety IoT devices connected to each other. In IoT, various cooperate with other collect and transmit private data sustain the efficient orderly operation IoT. However, in complex security situation due resources being limited, it difficult for afford heavy resource consumption sophisticated encryption decryption mechanism, which brings certain risk transmission To ensure safe transmission, we propose an improved certificateless hybrid signcryption scheme satisfies confidentiality, unforgeability, forward security, public verification, known session-specific temporary information security; meanwhile, prove them random oracle model (ROM). addition, through simulation experiment, find that our has higher communication efficiency computational compared existing schemes.