Writing Secure Code During February and March of 2

文件名称: Writing Secure Code

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上传时间: 2011-06-23

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详细说明： During February and March of 2002, all normal feature work on Microsoft Windows stopped. Throughout this period, the entire development team turned its attention to improving the security of the next version of the product, Windows .NET Server 2003. The goal of the Windows Security Push, as it became known, was to educate the entire team about the latest secure coding techniques, to find design and code flaws, and to improve test code and documentation. The first edition of this book was required reading by all members of the Wi ndows team during the push, and this second edition documents many of the findings from that push and subsequent security pushes for other Microsoft products, including SQL Server, Office, Exchange, Systems Management Server, Visual Studio .NET, the .NET common language runtime, and many others. The impetus for the Windows Security Push (and many of the other security pushes) was Bill Gates's “Trustworthy Computing” memo of January 15, 2002, which outlined a high-level strategy to deliver a new breed of computer systems, systems that are more secure and available. Since the memo, both of us have spoken to or worked with thousands of developers within and outside Microsoft, and they've all told us the same thing: “We want to do the right thing—we want to build secure software—but we don't know enough yet.” That desire and uncertainty directly relates to this book's purpose: to teach people things they were never taught in school—how to design, build, test, and document secure software. By secure software, we don't mean security code or code that implements security features. We mean code that is designed to withstand attack by malicious attackers. Secure code is also robust code. Our goal for this book is to be relentlessly practical. A side effect is to make you understand that your code will be attacked. We can't be more blunt, so let us say it again. If you create an application that runs on one or more computers connected to a network or the biggest network of them all, the Internet, your code will be attacked. The consequences of compromised systems are many and varied, including loss of production, loss of customer faith, and loss of money. For example, if an attacker can compromise your application, such as by making it unavailable, your clients might go elsewhere. Most people have a low wait-time threshold when using Internet-based services. If the service is not available, many will take their patronage and money to your competitors. The real problem with numerous software development houses is that security is not seen as a revenue-generating function of the development process. Because of this, management does not want to spend money training developers to write secure code. Management does spend money on security technologies, but that's usually after a successful attack! And at that point, it's too late—the damage has been done. Fixing applications post-attack is expensive, both financially and in terms of your reputation. Protecting property from theft and attack has been a time-proven practice. Our earliest ancestors had laws punishing those who chose to steal, damage, or trespass on property owned by citizens. Simply, people understand that certain chattels and property are private and should stay that way. The same ethics apply to the digital world, and therefore part of our job as developers is to create applications and solutions that protect digital assets. You'll notice that this book covers some of the fundamental issues that should be covered in school when designing and building secure systems is the subject. You might be thinking that designing is the realm of the architect or program manager, and it is, but as developers and testers you need to also understand the processes involved in outlining systems designed to withstand attack. We know software will always have vulnerabilities, regardless of how much time and effort you spend trying to develop secure software, simply because you cannot predict future security research. We know this is true of Microsoft Windows .NET Server 2003, but we also know you can reduce the overall number of vulnerabilities and make it substantially harder to find and exploit vulnerabilities in your code by following the advice in this book. ...展开收缩

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