Attacks on government Web sites, break-ins at Internet service providers, electronic credit card fraud, invasion of personal privacy by merchants as well as hackers--is this what the World Wide Web is really all about? Web Security & Commerce cuts through the hype and the front page stories. It tells you what the real risks are and explains how you can minimize them. Whether you're a casual (but concerned) Web surfer or a system administrator responsible for the security of a critical Web server, this book will tell you what you need to know. Entertaining as well as illuminating, it looks behind the headlines at the technologies, risks, and benefits of the Web. Whatever browser or server you are using, you and your system will benefit from this book. Topics include: User safety--browser vulnerabilities (with an emphasis on Netscape Navigator and Microsoft Internet Explorer), privacy concerns, issues with Java, JavaScript, ActiveX, and plug-ins. Digital certificates--what they are, how they assure identity in a networked environment, how certification authorities and server certificates work, and what code signing all about. Cryptography--an overview of how encryption works on the Internet and how different algorithms and programs are being used today. Web server security--detailed technical information about SSL (Secure Socket Layer), TLS (Transport Layer Security), host security, server access methods, and secure CGI/API programming. Commerce and society--how digital payments work, what blocking software and censorship technology (e.g., PICS and RSACi) is about, and what civil and criminal issues you need to understand.