Bishop (computer science, U. of California at Davis) adapts his Computer Security: Art and Science for students, professionals, and readers more interested in the practicalities than the theoretical and mathematical foundations of computer security. In 29 chapters he describes the elements of computer security, including access control, policies, cryptography and its management, authentication and identity, information flow and confinement, evaluation of systems, malicious logic, vulnerability analysis, auditing and intrusion protection, lattices, the extended Euclidean algorithm, virtual machines, and security at the network, system, user and program levels. Examples and exercises are included. Annotation ©2004 Book News, Inc., Portland, OR (booknews.com)