Signcryption Scheme Based on SCHNORR Digital Signature

The paper is structured in seven parts, as follows. Signcryption and its properties definitions are contained in the first part. Also here, in introduction, are presented the practical applications of Signcryption in real life. In the second part is exposed the original signcryption primitive introduced by Youliang Zheng, which combines public key encryption and a derivation of ElGamal digital signature algorithm. Part three contains the presentation of the new signcryption scheme, Schnorr Signcryption, as a result of the combination of public key encryption and Schnorr digital signature algorithm.