Signcryption Schemes with Public Verification and Forward Security Based on Elliptic Curves
Shi Ya-nan · Journal of Information Engineering University · 2008
Two signcryption schemes based on elliptic curves are analyzed and improved in this paper.The modified signcryption schemes have the properties of public verification and forward secrecy.By the public verification function,a judge can directly verify signature of original message without the sender's private key when dispute occurs;By forward secrecy,although the private key of the sender is disclosed,it doesn't affect the confidentiality of previous messages.Finally the security properties of them are analyzed in detail.