Ebook "Network security technologies" presents key security technologies from diverse fields, using a hierarchical framework that enables understanding of security components, how they relate to one another, and how they interwork. This text is unique in that it classifies technologies as basic, enhanced, integrated, and architectural as a means of associating their functional complexities, providing added insight into their interrelationships. It introduces and details security components and their relationships to each other.
The undersigned ("Recipient") hereby agrees that all financial and other information
("Information") that it has and will receive concerning Infrared Measuring Technologies is
confidential and will not be disclosed to any individual or entity without prior written consent.
The Information shall remain the property of Infrared Measuring Technologies and shall be
returned to Infrared Measuring Technologies promptly at its request together with all copies
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical
activity. ISO and IEC technical committees collaborate in fields of mutual interest.
Peter Ashe is an information consultant with NHS Scotland (National
Services). He first published on ‘Recording, ethics and data protection’
in New Information Technology in Management and Practice (Horobin, G.
and Montgomery, S. [eds], Kogan Page, 1986). As a member of the
Association of Directors of Social Services Information Management
Group (1983-2004) he contributed to most of the UK national
initiatives in this area.
This chapter introduces the concepts of cryptography and covers encryption, hashing, and digital signatures and how these techniques provide confidentiality, integrity, authenticity, and nonrepudiation. You will learn about algorithms, symmetric and asymmetric encryption, digital signatures, and Public Key Infrastructure (PKI).
Enterprise data centers contain the assets, applications, and data that are often targeted by electronic
attacks. Endpoints such as data center servers are key objectives of malicious attacks and must be
protected. The number of reported attacks, including those that affect data centers, continues to grow
exponentially every year (CERT/CC Statistics 1988-2002, CSI/FBI 2001).
Attacks against server farms can result in lost business for e-commerce and business-to-business
applications, and the theft of confidential or proprietary information.
The most common Internet payment method for the business-to-consumer segment of
electronic commerce is credit cards. However, the security of data transmitted over the
Internet has been a major concern for customers. At present most companies use SSL
(Secure Socket Layer) protocol to provide security and privacy. This protocol provides
consumers a means to encrypt their order information. While providing a basic level of
security this protocol has been breached and does not enjoy a high level of consumer
Applied Ethics is now acknowledged as a field of study in its own right.
Much of its recent development has resulted from rethinking traditional
medical ethics in the light of new moral problems arising out of advances
in medical science and technology. Applied philosophers, ethicists and
lawyers have devoted considerable energy to exploring the dilemmas
emerging from modern health care practices and their effects on the
Several factors should be considered along with the security categorization of the system
confidentiality when making sanitization decisions. The cost versus benefit of a media
sanitization process should be understood prior to a final decision. For instance, it may not be
cost-effective to degauss inexpensive media such as diskettes. Even though clear or purge
may be the recommended solution, it may be more cost-effective (considering training,
tracking, and validation, etc) to destroy media rather than use one of the other options.
This report has been reviewed in draft form by individuals chosen for
their diverse perspectives and technical expertise, in accordance with procedures
approved by the NRC’s Report Review Committee. The purpose
of this independent review is to provide candid and critical comments
that will assist the institution in making its published report as sound as
possible and to ensure that the report meets institutional standards for
objectivity, evidence, and responsiveness to the study charge.
However, risks are inherent in any wireless technology. Some of these risks are similar to those of wired
networks; some are exacerbated by wireless connectivity; some are new. Perhaps the most significant
source of risks in wireless networks is that the technology’s underlying communications medium, the
airwave, is open to intruders, making it the logical equivalent of an Ethernet port in the parking lot.
The loss of confidentiality and integrity and the threat of denial of service (DoS) attacks are risks
typically associated with wireless communications.
The lack of embedded security within the IPv4
protocol has led to the many attacks seen today.
Mechanisms to secure IPv4 do exist, but there are
no requirements for their use . IPsec is a specific
mechanism used to secure the protocol. IPsec
secures the packet payloads by means of
cryptography. IPsec provides the services of
confidentiality, integrity, and authentication .
The information security concern regarding information disposal and media sanitization
resides not in the media but in the recorded information. The issue of media disposal and
sanitization is driven by the information placed intentionally or unintentionally on the media.
With the advanced features of today’s operating systems, electronic media used on a system
should be assumed to contain information commensurate with the security categorization of
the system’s confidentiality.
The information in this guide is best applied in the context of current technology and
applications. It also provides guidance for information disposition sanitization and control
decisions to be made throughout the system life cycle. Forms of media exist that are not
addressed by this guide, and media are yet to be developed and deployed that are not covered
by this guide.
Information systems capture, process, and store information using a wide variety of media.
This information is not only located on the intended storage media but also on devices used to
create, process, or transmit this information. These media may require special disposition in
order to mitigate the risk of unauthorized disclosure of information and to ensure its