This reference presents modern concepts of computer security. Subjects covered include private-key and public-key encryption, hashing, digital signatures, authentications, secret sharing, group-oriented cryptography, and many others. The section on intrusion detection and access control provides examples of security systems implemented as a part of an operating system. Database and network security is also discussed. The final chapters introduce modern e-business systems based on digital cash. Это и многое другое вы найдете в книге Fundamentals of Computer Security (Josef Pieprzyk, Thomas Hardjono, Jennifer Seberry)