Efficient Identity Based Signcryption Schemes with Special Properties using Bilinear pairings over Elliptic Curves

Abstract

newline quotNew lineIn the area of computer communications and electronic transactions, an newlineimportant concern is how to send data in a confidential and authenticated way. newlineUsually, confidentiality of delivered data is provided by encryption algorithms, newlinewhile authentication of messages is guaranteed by digital signatures. In case where newlineboth are required, the encryption and signature operations were simply newlinesequentially composed. In 1997, Zhang demonstrated that by combining both newlinegoals into a single primitive, it is possible to achieve significant savings both in newlinecomputational and communication overhead. Since then, a wide variety of newlinesigncryption schemes have been proposed.quot newline