Co-authored by the leading e-commerce security specialist and a leading legal specialist in e-commerce, this book offers a complete blueprint showing companies how to implement state-of-the-art e-commerce while minimizing all the security risks involved. This new edition has been completely updated to reflect today's latest developments in digital signatures, public-key infrastructure, EDI technical standards, certification, and authentication. The book begins by introducing the underlying technologies and inherent risks of electronic commerce. It considers the role of computer networks, the Internet, EDI and email, and the challenges of ensuring that electronic transactions are resistant to fraud, traceable, and legally binding in all jurisdictions. From network security to cryptography and today's latest secure Web and messaging protocols, all of today's latest security technologies are explained in detail, from a business perspective, in language non-specialists can easily understand.