High Efficiency Certificateless Publicly Verifiable Signcryption Scheme
Huifang Yu · Jisuanji gongcheng · 2009
Signcryption is a scheme that combines the signature and the encryption into one.Certificateless cryptosystem realizes the properties of the certificateless,and the key-unescrow.This paper combines the signcryption and certificateless public key cryptosystem on the basis of the existing literature and realizes an improved certificateless publicly verifiable signcryption scheme.Under the random oracle model,it is provable secure against two attackers defined in the paper.The pairings in unsigncryption is less a time than that of Malone-Lee J's ID-based scheme and the efficiency is higher.