ECBSC:ECDSA-based verifiable broadcast signcryption
Lixian Wei · Journal of PLA University of Science and Technology · 2009
The formal definition of broadcast signcryption was proposed,and based on ECDSA,a verifiable broadcast signcryption ECBSC was constructed which could signcrypt and broadcast messagers to multiple recipients.Without any additional cost,it could also signcrypt multiple messages to multiple recipients.A recipients only obtained relevant messages from the ciphertext.A third party could verify the signcryption text publicly by the method of ECDSA.ECBSC is more efficient than trivial n-recipient scheme which uses SC-BLS repeatedly,and can be used in multicast communication.