Course Objective: The objective of this course is to introduce students to the technologies of Web Commerce, Security and Privacy as well as to related business, policy and usability issues. Content: Over the past ten years, the Web has become an integral part of our daily life, whether at home or at work. This course provides students with an overview of the technologies and practices associated with Web Security, Privacy and Commerce. The course is organized around three parts: Part I - Web Security & Privacy Technologies The big picture, gentle introduction to cryptography, digital signatures, key management, authentication, Internet security protocols, certificates & PKI, decentralized trust management, privacy enhancing technologies, electronic payments Part II - Ethical, Social and Political Issues Sample Topics: Privacy (e.g. FTC FIP, EU Data Protection Directive), Digital Millenium Copyright Act, Internet Governance and Domain Names (ICANN), legal framework for web commerce, etc. (Note : a number of related issues are also addressed in Part I and III). Part III - Web Commerce The big picture, Internet marketing & personalization, search engines, B2B and electronic markets, P2P, Web 2.0, Mobile Commerce. Format: Lectures (including guest lectures), discussions, student presentations, and class projects.