Cryptography and Data Security
Cryptography and Data Security
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发表时间：
1982
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通讯作者：
D. Denning
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作者：
D. Denning
电子计算机已经从20世纪40年代的实验性企业发展到20世纪80年代的多产实用数据处理系统。当我们开始依赖这些系统来处理和存储数据时，我们也开始怀疑它们保护有价值数据的能力。数据安全是保护计算机和通信系统中的数据免受未经授权的泄露和修改的方法的科学和研究。本书的目标是介绍数据安全的数学原理，并展示这些原理如何应用于操作系统、数据库系统和计算机网络。这本书是为学生和专业人士寻求介绍这些原则。对于那些想进一步研究特定主题的人来说，有很多参考资料。自1975年以来，数据安全发展迅速。我们已经看到了密码学令人兴奋的发展：公钥加密，数字签名，数据加密标准（DES），密钥保护方案和密钥分发协议。我们已经开发了一些技术来验证程序不会泄露机密数据，或者将机密数据传输给安全级别较低的用户。我们已经找到了保护统计数据库中数据的新控制措施，以及攻击这些数据库的新方法。我们对安全的理论和实际限制有了更好的理解。
From the Preface (See Front Matter for full Preface) Electronic computers have evolved from exiguous experimental enterprises in the 1940s to prolific practical data processing systems in the 1980s. As we have come to rely on these systems to process and store data, we have also come to wonder about their ability to protect valuable data. Data security is the science and study of methods of protecting data in computer and communication systems from unauthorized disclosure and modification. The goal of this book is to introduce the mathematical principles of data security and to show how these principles apply to operating systems, database systems, and computer networks. The book is for students and professionals seeking an introduction to these principles. There are many references for those who would like to study specific topics further. Data security has evolved rapidly since 1975. We have seen exciting developments in cryptography: public-key encryption, digital signatures, the Data Encryption Standard (DES), key safeguarding schemes, and key distribution protocols. We have developed techniques for verifying that programs do not leak confidential data, or transmit classified data to users with lower security clearances. We have found new controls for protecting data in statistical databases--and new methods of attacking these databases. We have come to a better understanding of the theoretical and practical limitations to security.