114 of 119 people found the following review helpful:
5.0 out of 5 stars
A must-read for true computer security professionals, October 29, 2000
I am an Air Force officer and technical resource for a 50-person military intrusion detection operation. I've seen Bruce speak twice and he never fails to impress. "Secrets and Lies" is no different. This book is not designed to teach readers about the latest security technologies. It was not written to promote specific products, although Bruce explains how the book's themes caused him to revamp his Counterpane firm. What the book does is teach security professionals how to think about their craft. I would recommend it to everyone in the field from day one, but its deeper meanings would probably not be evident until a year's work on the front lines.
Some of the ideas aren't new. For example, I've heard members of the L0pht petition for a software Underwriter's Lab for years, and others have encouraged liability laws for software vendors. Bruce builds on these ideas and weaves them into his own prescription for dealing with complex and inherently insecure systems. This is the type of book that gives a professional the vocabulary and framework to organize his understanding of the security process. "Secrets and Lies" creates the "little voice" that warns against a vendor's promises to solve all your problems with a $30,000 box-of-wonders.
Of particular interest to me, after training in economics, is Bruce's insistence that "the buying public has no way to differentiate real security from bad security." It logicially follows that the market cannot address this problem, since "perfect information" does not exist. Therefore, outside organizations (perhaps an FDA for software?) should get involved, but not by outlawing reverse engineering and security tools.
I give five stars to books that make the complex simple, that reveal and enhance technical details, or that change the way I look at the world. This book fits two, and possibly three of those categories. Bravo, Bruce.
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77 of 83 people found the following review helpful:
5.0 out of 5 stars
Excellent intro infosec book that everyone should read, September 17, 2000
Written by one of my favorite industry commentators, this is an introductory text on information security that should be useful to just about everyone. I highly recommend this book for the following audiences:
· Beginning security specialists
· IS and other business managers who make decisions about systems deployment
· Experienced security practitioners who want to improve their thinking and analysis skills
· Those studying for security certification, such as the CISSP
· Software and Internet product planning and marketing staff (and not just security software)
Schneier, who is recognized for his contributions to cryptography, has recently found religion. As recounted in a recent interview in "Information Security" magazine, he realized that humans were destroying the purity of his mathematical approach. Instead of retreating into academia, he tackled this issue head-on, some of the result of which is this landmark book. He recommends reading it cover to cover, and I agree with him-it takes all 400 pages to paint the complete story, and if you don't approach it linearly, you run the risk of missing the subtleties of the author's message. Skimming this book could easily trap a reader into equating vulnerability with risk. The world is full of risk, and while Schneier takes obvious delight in deconstructing the vulnerabilities of automated systems, it is important to understand that historical manual systems are quite vulnerable too, and humans deal with the risk quite nicely. Read the whole book.
The chapters that I found most significant included:
· (6 & 7) Cryptography: It is no surprise that he was written a terrific introduction to the concepts and building blocks (primitives and protocols) of encryption. Even techno-agnostics will find great value in his discussion of the problems with proprietary algorithms.
· (9) Identification & Authentication: An excellent introduction to the problems of passwords and helpful discussion of the limitations of biometrics. He makes it clear why biometrics are NOT a magic cure for security problems.
· (12) Network Defenses: Schneier tells it like it is! The ugly truth about sexy security toys.
· (13) Software Reliability: Best description of stack overflow that I've ever seen for a lay audience.
· (22) Product Testing and Verification: After crypto, evaluating software for security flaws is Schneier's other specialty, and he's written an awesome chapter. The author makes it very clear why it is unrealistic to expect invulnerable software, he single-handedly conducts a totally balanced debate on the merits of full disclosure, and he finishes the chapter with sage advice on approaching security product reviews with healthy skepticism.
I'm often asked to recommend introductory texts on information security, and unfortunately there really aren't that many good books for a newbie. If more books existed, I would probably give Schneier's book a 4 instead of a 5, but for now, this is one of the best. As he explains in the Afterward, his `epiphany' occurred only 12 months before completing the text-this isn't much time to become an expert in security process. His background is somewhat removed from day to day operations, and perhaps this lack of administrative experience results in a few weak areas. I suggest that the reader exercise some critical thinking and consult additional authorities when reading the following chapters:
· (4) Adversaries: his concept of computer criminals is a bit weak, pretty much lumping all transgressors into the mutually exclusive categories of `spy' or `hacker'.
· (5) Security Needs: Sof of his terminology lacks precision (perhaps inevitable when addressing a general audience). I disagree that a spoofed message represents an integrity failure, and I don't characterize audit as a requirement, but as a control.
· (15) Certificates and Credentials: He totally ignores the concept that practice statements (policies on CA and especially certificate management) provide any arbitrary level of assurance-the more stringent the rules, the higher the assurance. He doesn't discuss time stamping and other forms of third-party witnessing that can greatly strengthen a digital signature.
· (16) Security Tricks: His vehement attack on key recovery is politically extreme. The government's ill-conceived desire for key escrow should not affect the responsibility a corporation has to protect its own data. Who hasn't used an encryption product and lost a key?
· (21) Attack Trees: This is a marvelously useful idea, but he leaves the impression that these can be used to create quantifiable risk models, and I don't believe that putting information security risk in dollar value terms is practical.
Despite its length, the book is a quick read, and the informal tone makes it very approachable. It is addressed at a completely different audience than "Applied Cryptography"--it isn't a technical book--it is more of a business book. (Technical specialists would be well advised to read more business texts like this.) My copy is already well marked with highlighting and notes-this text has a lot of meat in it, and many new and useful ideas. If you find this book helpful in your job and you want to do additional reading, two complementary texts on the human aspects of infosec that I recommend are "The Process of Network Security" by Thomas Wadlow, and "Fighting Computer Crime : A New Framework for Protecting Information" by Donn B. Parker (I've reviewed both here on Amazon).
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39 of 40 people found the following review helpful:
5.0 out of 5 stars
Secrets and Lies and Schneier, oh my, September 6, 2000
By A Customer
_Secrets and Lies_ is a necessary book for everyone who wonders about privacy and security on the Internet--that is to say, everyone. Schneier discusses the threats in cyberspace, the technologies to combat them, and (most importantly) the strategies that make those technologies work. It's not surprising that the technical information is solid. What might be surprising to some, though, is how lucid and funny Schneier's writing is. He doesn't talk down to readers, but you don't have to be a complete techie to understand what he's saying.
Schneier's discussion of where things are and where they're going is fascinating and informative. I was especially interested by the legal stuff--many of the laws designed to enhance security and privacy actually damage it. Read this book, make your boss read it, make your IT manager read it, and send a copy to your congresscritter. It might just help make the Net safer.
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