Signcryption Scheme with Public Verifiability and Forward Security
陕西师范大学青年基金资助项目一个公开可验证和前向安全的签密方案*

A signcryption scheme with pubilc verifiability and forward security is presented in this paper. So an open problem on the design of signcryption is successfully solved. Finally the security properties of this scheme is proved in detail.