The Need for Security
Upon completion of this lesson the student should
be able to:
Explain the business need for
Describe the threats posed to system security
and discuss the more common attacks
What is a system?
What does Security mean?
What does system security mean?
The fundamental requirement
Basic elements of Security
Issues for Implementing Security
and what about the infrastructure components?
Access control is the use of hardware based and
software based controls to protect organization resources.
Access control can take at least three forms:
Physical access control
Network access control
Operating system access c
verifying the identity of someone or
Verification conforming the validity of a user
two main interesting cases
a human is identified
a computer authenticates ano
two Greek words kryptos and
graphein meaning "Hidden Writing"
scrambling a message artfully
cryptosystem is a cryptographic algorithm
the key or password man
An Introduction to
COEN 150 Spring 2007
Attacks, Services and Mechanisms
Threats, Attacks and Vulnerabilities
Security Policies and Mechanisms for
Readings, standards, etc.