Cryptanalysis and improvement of certificateless proxy signcryptionn scheme for e-prescription system in mobile cloud computing

摘要

Certificateless proxy signcryption (CLPSc) is one of the most efficientn security primitives for secure data transmission. The entrustment ofn signing rights to a proxy signcrypter at the behest of an originaln signcrypter imparts its utility in various fields such as an onlinen proxy auction, healthcare industry, cloud computing, mobile-agents,n ubiquitous computing, etc. Unlike the traditional sign-then-encryptn approach, signcryption primitive saves computational costs and bandwid