The Second Electronic Commerce Workshop, Seoul, Korea, June 25, 1999. (Korean) Trends of Digital Certificates for Electronic Commerce (Korean) Digital Certificate Standard and Certificate Authority (Korean) Digital Signature and Certificate Authority (Korean) Management & Perspective of Certificcate Authority from the viewpoint of Internet Banking (Korean) Infrastructure for Electronic Commerce: Digital Certificates & IC Cards (Korean) Role of KFTC for Certificate Authority (Korean) Business Strategy for Private Certificate Authority (Korean) The First Electronic Commerce Workshop, Seoul, Korea, February 25, 1999. (Korean) Model of Business-to-Business Electronic Commerce and Extranet Cases (Korean) Legistration of Electronic Commerce (Korean) Strategy of Logistics for Businesss-to-Business EC (Korean) Internet and the Enterprise : A Dell Perspective (Korean) One-stop Solution @COMMERCEVISION (Korean) The Current State and Plan of Public Organization on EC (Korean) Internet Security for B2B EC (Korean) Security System for EC (Korean)