A framework Chunghwa Telecom ecommerce Public Key Infrastructure (ePKI) was set up by Chunghwa Telecom (CHT). Its purpose is to issuing certificates and strengthen electronic commerce infrastructure.
It is the Hierarchy PKI based on ITU-T X.509 standard, within the framework, an ePKI Root Certification Authority (eCA) acts as the trust anchor and issues certificates to subordinate certification authority (CA). There are two subordinate certification authorities, Public CA (PublicCA) and EV SSL CA(ePKI EV SSL CA).PublicCA issues certificates to the general public including natural persons, organizations, equipment, and application software. ePKI EV SSL CA will issue EV SSL certificates to servers of private organization, government entity, business entities and Non-Commercial Entity (International Organizations).