Amazon.com description: Product Description: This book presents detailed coverage of network security technology, the standards that are being developed for security in an internetworking environment, and the practical issues involved in developing security applications. Each basic building block of network security is covered, including conventional and public-key cryptography, authentication, and digital signatures, as are methods for countering hackers and other intruders and viruses. This work is intended for use on network security and computer security courses.