History and Acknowledgments

In June 1991, O’Reilly & Associates published our first book, Practical Unix Security. The book was 450 pages and contained state-of-the-art information on securing Unix computers on the Internet. Five years later, we published the revised edition of our book, now entitled Practical Unix & Internet Security. During the intervening years, the field of computer security had grown substantially. Not surprisingly, so had our page count. The new volume was 1000 pages long.

In 1996, our editor Debby Russell suggested that we create a revised version of Practical Unix & Internet Security that was aimed at the growing community of web users and service providers. But because the book was already so long, we decided to write a new book that would focus on SSL encryption, client-side digital signature certificates, and special issues pertaining to electronic commerce. That book, Web Security and Commerce, was published in 1997.

In the spring of 2000, Debby approached us again, asking if we would like to rewrite either of the security books. We looked them over and started on this project. Originally we thought that we would simply remove the material from Web Security and Commerce that was no longer relevant—alternatives that had been rejected by the marketplace. And certainly, some screen shots and configuration information needed to be revised. But as we looked more deeply at the project, we realized that a total rewrite and a significant expansion of the book was required. The result of that complete rewrite is this second edition.

Second Edition

For help in creating this second edition of the book, we wish to offer our special thanks to:

  • Aaron Goldfeder at Microsoft. Over more than six months, Aaron proved to be a godsend, able to find out the answers to all sorts of questions having to do with Internet Explorer, Internet Information Services, Authenticode, and even VeriSign. Many errors were headed off at the pass by Aaron’s gracious responses to our email. And thanks to Charles Fitzgerald for putting us in touch with Stephen Purpura, who put us in touch with Aaron!

  • Andy Cervantes and the Privacy Foundation, who provided us with information regarding hostile browser helpers.

  • Ann Wiles and CardWeb.com, who provided us with information about credit card fraud.

  • Aaron S. Cope at Vineyard.NET, who provided all-around question-answering and web-searching capabilities.

  • Bert-Jaap Koops, who answered questions about his Crypto Law Survey and allowed us to reprint its findings.

  • Bradford Biddle, now at Intel, who answered many questions about PKI and public key issues and provided us with material for Chapter 7.

  • Christopher D. Hunter, who provided information about online privacy issues.

  • D.A. Smith at Sandstorm Enterprises, whose constant reading and summarization of Bugtraq and other mailing lists saved the authors a tremendous amount of time.

  • David Flanagan, who answered questions on JavaScript security.

  • Elisabeth Cohen, formerly at Merrit Group, VeriSign’s PR agency, who helped set up an interview that proved useful.

  • Eric Pollard at Earthlink, who put us in touch with one of our reviewers, Lisa Hoyt.

  • Karl Auerbach at ICANN, who provided needed details regarding the organization’s formation.

  • Jane Winn, who answered many questions about digital signatures and wrote a terrific article about E-SIGN.

  • Jeff Morrow of Switch and Data, which provided us with a photograph of their Internet data center.

  • Jeff Ubois at Omniva Policy Systems, who sent us many messages that self-destructed.

  • Joe Chou at Sun and the Mozilla project, who verified for us that JavaScripts downloaded by SSL are not treated as signed JavaScripts (despite claims to the contrary in the documentation). Also thanks to George Drapeau at Sun and Norris Boyd at ATG, and John Gable at Netscape, who worked on the same issue.

  • John Lambert at Microsoft, who found out for us the process for getting a root certificate bundled into Microsoft Internet Explorer.

  • Kevin Fu at MIT, whose knowledge of cookies and cryptography proved invaluable.

  • Lorrie Cranor, who answered all things relating to P3P, and even wrote our appendix on the subject.

  • Michael Baum, who took time out of his busy flying schedule to answer some questions about digital signatures and the law.

  • Michael Froomkin, who answered questions about digital signatures and put us in touch with Jane Winn.

  • Mitchell Stoltz, who answered even more questions about signed JavaScripts in Netscape 6.

  • Shaun Clowes for providing very helpful information on PHP security.

  • Stephen Wu of VeriSign, who caught and helped us to correct many inaccurate statements regarding his company.

  • Trista Haugen at Surety, who answered questions about the company’s current offerings.

  • Veronica at Lycos.com’s Product Support Analysis Team, who really tried to find out for us what HotBot’s cookies do, but ended up simply telling us how to disable cookies in our browser.

This book was reviewed by Norris Boyd at ATG, Carl Ellison at Intel, Kevin Fu at MIT, Lisa Hoyt at Earthlink, Reuven Lerner, Radia Perlman at Sun Microsystems, Mitch Stoltz at Netscape, Rich Wellner, and Stephen Wu at VeriSign. Many thanks to all of you.

Our editor Debby Russell did yet another fabulous job editing this book. Rob Romano created illustrations that helped convey some of the more difficult ideas. Many thanks to Colleen Gorman, the production editor for this book; Edie Freedman and Ellie Volckhausen, who designed the front cover; Emma Colby, who designed the back cover, David Futato, who designed the interior format; Audrey Doyle, the copyeditor; Mary Brady, Phil Dangler, Maureen Dempsey, Derek Di Matteo, Catherine Morris, and Edie Shapiro, who entered edits; and John Bickelhaupt, who indexed the book.

First Edition

We want to reiterate our thanks to the people who helped us in creating the original edition of Web Security & Commerce. We received help from many people in the computer industry, including:[14]

  • At Consensus, Christopher Allen and Tim Dierks reviewed our chapters on SSL.

  • At Cybercash, Carl Ellison sent us many email messages about the role and usefulness of certificates.

  • At First Virtual, Marshall Rose and Lee Stein gave us lots of juicy information about what they were doing.

  • At JavaSoft, David Brownell answered many questions regarding Java and Java’s interaction with digital signatures.

  • At Microsoft, we had tremendous help from Charles Fitzgerald, Barbara Fox, Rick Johnson, Thomas Reardon, and Michael Toutonghi, who spent a great number of days and nights acquainting us with the issues of SET, Java, JavaScript, and ActiveX security.

  • At Netscape, Frank Chen, Eric Greenberg, Jeff Treuhaft, and Tom Weinstein provided us with many technical insights.

  • At VeriSign, Michael Baum, Gina Jorasch, Kelly M. Ryan, Arn Schaeffer, Stratton Sclavos, and Peter Williams were very patient, answering many questions.

  • At the World Wide Web Consortium (W3C), Paul Resnick reviewed the chapter on PICS and made several helpful suggestions.

Adam Cain at UIUC provided interesting timing information about SSL for the SSL chapter. Brad Wood from Sandia National Labs gave us excellent comments about the role of encryption in securing web servers. John Guinasso at Netcom gave us interesting insights into the human problems facing ISPs. Mark Shuttleworth at Thawte and Sameer Parekh at Community ConneXion told us more about web servers and dealing with VeriSign than we ever imagined we might need to know. Nessa Feddis at the American Banker’s Association straightened us out about many banking regulations. Eric Young, the author of SSLeay, answered many questions about his program and other aspects of SSL. Jon Orwant looked over the Perl code and answered questions for us.

We would like to thank our reviewers, who made this a better book by scanning the draft text for inaccuracies and confusions. Special thanks are due to Michael Baum, David Brownell, Carl Ellison, Barbara Fox, Lamont Granquist, Eric Greenberg, John Guinasso, Peter Neumann, Marshall Rose, Lincoln Stein, Ilane Marie Walberg, Dan Wallach, and David Waitzman. Special thanks to Kevin Dowd, who provided information on Windows NT host security, to Bradford Biddle, who gave us permission to include digital signature policy information, and to Bert-Jaap Koops, who let us use his table on export restrictions.

[14] The companies and organizational affiliations listed here were accurate as of the writing of the first edition; many of these companies may no longer exist, and most of these people have moved on to other opportunities.

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