A Review of Elliptic Curve based Signcryption Schemes Anuj Kumar Singh

Signcryption is a new cryptographic approach which provides authentication and encryption simultaneously in a single logical step. The aim is to reduce the cost of signature-then-encryption approach. This cost includes computational cost and communication cost. Furthermore some signcryption schemes are based on RSA while some are based on elliptic curve. This paper provides a critical review of the signcryption schemes based on elliptic curves, since signcryption schemes based on elliptic curve cryptography saves more computational time and communication cost. Also, the elliptic curve based signcryption schemes are suitable for resource constrained applications. This work explores the advantages and limitations of the different signcryption schemes based on elliptic curves