Secure E-mail System Based on Chaos and Elliptic Curves

PEM,PGP and S/MIME improve the security of E-mail,but problems such as low speed and lack of security still exist.A novel secure E-mail system is proposed to handle these problems.A block cipher based on chaotic maps,a one-way hash function based on two-dimension hyper-chaotic maps and a digital signature algorithm based on chaos and elliptic curves are introduced to construct the scheme.Analysis and application show that the system possesses good performance on operation speed and security,and it has great potential in practice.