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T-3 - HALF DAY
Technical Overview of the JTRS Software Communications Architecture  
Tuesday, October 30, 2001
9:00am-12:00pm

Presenter:

Mr. Phillip A. Eyerman
Senior Principal Systems Engineer  
Radios/Terminals Business Unit, Raytheon Company  

Tutorial Abstract:

The Software Communications Architecture (SCA) has been defined for the Joint Tactical Radio System (JTRS) and is a required element of JTRS procurements.  This tutorial explains the background of the SCA and how it applies to JTRS implementations.  Some details are provided on the Software Architecture, Hardware Architecture rules, Application Program Interfaces (APIs) as defined in the SCA, and on Security requirements and APIs.  Attendees will gain an understanding of the SCA and how it complements the other important elements of a JTRS design. 

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T-4 - FULL DAY
The Wireless Application Protocol for the Mobile Internet  
Tuesday, October 30, 2001
9:00am-12:00pm; 2:15pm-5:15pm

Presenter:

Dr. Zygmunt J. Haas  
Associate Professor 
School of Electrical and Computer Engineering, Cornell University  

Tutorial Abstract:

This tutorial is about ubiquitous access to what is perceived as one of the most impressive inventions of the 20^th century – the Internet. Although electronic access is no longer in the hands of highly skilled professionals only, it is still far from being truly universal. 

The challenge that this field is driven by is the fact that although the volume of accessible information is growing at an unprecedented rate, the capabilities of the wireless and mobile hardware are lagging behind.  Thus, mobile systems are expected to continue to be transmission-capacity and battery-power limited.  As such, the techniques for accessing the information and the communication protocols that are used for wired access cannot be efficiently used in such an environment and new approaches are needed.  This is where the material presented in our course will come into play. 

Mainly, we will focus on one technology – the Wireless Access Protocol (WAP).  This technology is essentially creating an efficient and effective protocol suite for supporting web access on mobile devices. 

Confronting the current Internet access model with the mobile Internet access requirements, the components and architecture of WAP will be presented.  We will start by introducing the Wireless Application Environment and the basics of the Wireless Markup Language (WML). Then, we will discuss in detail the various layers of the WAP protocol suite, starting from the Wireless Session Protocol, through the Wireless Transaction Protocol and Wireless Transport Layer Security down to the Wireless Datagram Protocol.  A more detailed presentation of the WML specification will be given, addressing issues such as WML character set, WML syntax, and WML data types.  In addition, WMLScript will be discussed, including the WMLScript standard library specification.  Finally, we will present the extension of the Wireless Application Environment for supporting Wireless Telephony Applications (WTA) and the Wireless Telephony Application Interface (WTAI) Specification for GSM. 

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T-5 - FULL DAY
Principals and Practice of Modern Information Security  
Wednesday, October 31, 2001
9:00am-12:00pm; 2:15pm-5:15pm

Presenters:

Dr. Nader Mehravari  
Senior Technical Staff Member  
Advanced Technology Department, Lockheed Martin  

Mr. Scott Rush  
Information Security Analyst/Oswego Site Information Security Technology Program Manager  
Lockheed Martin  

Mr. Jeremy Impson
Associate Network Engineer  
Advanced Technology Department, Lockheed Martin Federal Systems  

Tutorial Abstract: 

Providing information and data to customers, business partners, and employees in a secure fashion, while at the same time protecting the valuable enterprise-wide information assets is one of the most important challenges facing private, public, state, federal, and military entities.  As a result, modern information security techniques and solutions are now a fundamental building block of any mission-critical information system solution. 

This tutorial is intended to provide a comprehensive understanding of all the key standards-based modern information security principles, technologies, and practices. Although this tutorial is intended to be introductory in nature, it will cover the material to an intermediary level in which the appropriate security and networking terms, concepts, and technologies are introduced, defined, and explored in some detail. 

The key concepts and technologies that will be presented in this tutorial include:  security attacks; information security services; refresher on networking and network services; firewalls; symmetric and public-key cryptography; public key infrastructures (PKI); smart cards and other mobile/portable security devices; virtual private networks (VPN); authentication techniques; intrusion detection; and information security related standards such as IPsec, SSL, and X.509. In addition, the following topics will be emphasized:  information security techniques and technologies required for enterprise-wide systems including secure business-to-business commerce integration, and information security concerns for application development. 

Table of Contents of the Tutorial:

1. Preliminaries

2. Introduction to Modern Information Security

3. Network and TCP/IP Refresher

4. Firewalls

5. Cryptography

6. PKI (Public Key Infrastructures)

7. Smart cards and other portable security devices

8. VPN (Virtual Private Networks)

9. Authentication

10. Intrusion Detection

11. Info Sec issues for Application Development

12. Glossary

13. References  

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T-6 - HALF DAY
Effectively Evaluating TCP Performance – Methodologies and Tools  
Wednesday, October 31, 2001
9:00am-12:00pm

Presenters:

Mr. Mark Allman
Computer Scientist  
BBN Technologies/NASA GRC  

Dr. Shawn D. Osterman  
Associate Professor  
School of Electrical Engineering and Computer Science, Ohio University  

Tutorial Abstract: 

Unfortunately, these studies are often of little value to the mainstream networking community and the standards process due to the researchers' questionable experimental methodologies. 

1. Choosing an appropriate implementation of TCP for experiments. 

2. What algorithms and options one should look for when choosing which TCP to use in a particular investigation. 

3. How to experiment with TCP (i. e., simulation, testbed work, or live Internet measurements)and the implications of each method. 

4. The importance of detailed knowledge of the TCP implementation chosen. 

5. Choosing TCP window sizes. 

6. Choosing which traffic profiles to use. 

7. Choosing appropriate performance metrics. 

8. Other considerations (link layer effects, segment size, etc.)

The second part of this tutorial will teach attendees how to use common tools to gain insight into network problems, performance, and bottlenecks.  Sophisticated analysis of computer networks doesn’t necessarily require expensive software; you can achieve good results using existing local information sources and readily-available, public domain software on the Internet.  Toward that end, we will discuss the basics of gathering statistics about network traffic and protocol behavior, visualizing network and protocol behavior, looking for problems, and analyzing protocol efficiency.  We will concentrate on the use of powerful, public domain programs and analysis tools for an in-depth study of network behavior with an emphasis on TCP protocol analysis. 

Both portions of the tutorial will include generous examples to illustrate the points outlined above. 

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