Key Expansion Based on Elliptic Curve Cryptography for Anonymous Voting

This study designs a security credential management system, including a certificate authority (CA), a registration authority (RA), and other individuals outside the CA and the RA. An anonymous voting method using elliptic curve cryptography (ECC)-based key expansion has been proposed to achieve anonymity to CA, RA, and individuals. In experiments, the performance of the proposed method based on different security strengths has been evaluated.