3
W
hen students compete,
everyone learns more. That's
the idea behind Assistant
Professor Guevara Noubir's interactive
Network Security course, which was one of
only two innovative educational initiatives
recognized at the annual Colloquium for
Information Systems Security Education
(NCISSE) for its approach to security
curriculum development.
NCISSE is an international confer-
ence whose attendees include the sixty
universities, including Northeastern, that
have been named Centers of Academic
Excellence in Information Assurance
Education by the National Security Agency.
The conference was established to encour-
age collaboration among government,
industry, and academia to strengthen and
expand information security education.
Noubir's fourteen-week course teaches
graduate students the fundamentals of
network security and culminates with
a two-day competition that pits student
teams against one another to see who can
create the most hacker-resistant network.
"When students compete against
each other, they are more motivated to
check each other's work carefully in order
to defeat the opponents," Noubir says.
The course competition is modeled
after similar contests held by a number
of security groups, ranging from national
professional organizations to Northeastern's
own Crew (the volunteer systems group).
What sets the course apart is the high
level of instruction students get before
the competition begins.
In lab assignments throughout the
semester, students set up servers and
try to institute known attacks or protect
their networks against them. They com-
plete mathematics-based homework
assignments to better understand the
theoretical underpinnings of security
that evolve over time. His current research interest also includes some geographic
information system problems.
Spatial databases and geographic information systems are used in common
applications such as environmental systems, corporate decision support systems, and
travel arrangement systems. Most of these applications contain huge volumes of data.
Zhang plans to examine efficient query processing systems for selection query,
aggregation query, and proximity query.
The selection query finds the objects in a user-specified region, such as downtown
Boston. The aggregation query computes some aggregate information in a user-specified
region, such as the total number of restaurants in a given region or the total rainfall
in New York state over the past year. The actual objects do not have to be named, but
simply quantified. The proximity query finds results based on the closeness of objects.
For instance, the hotel/library pair that is closest to one another, the location for a
potential supermarket that will be close to the maximum number of residents, or an
apartment whose total distance to a supermarket and a subway station is minimal.
As part of the CAREER award, the project will also enrich educational opportunities
at Northeastern by creating opportunities for students to participate in Zhang's research.
Guevara Noubir
issues. And they develop a secure
instant messaging program that will
become part of the network they protect
during the competition.
After the NCISSE presentation,
eleven universities contacted Noubir to
request course materials. The response
has been so strong that Noubir is
planning to set up a Web site where
registered instructors can download
new laboratory assignments and share
their experiences.
Noubir also plans a series of
improvements to the popular course.
For instance, students last year didn't
compete until the final week of class.
This year, they will get a not-for-credit
trial run during the tenth week so
that everyone better understands the
demands of the contest environment.
Noubir will also require students to
post their code by the tenth week so
that the teams have adequate time to
analyze one another's work for strengths
and weaknesses.
"They missed things because they
didn't have enough time with it," he
says. "I don't want that to happen."
Noubir hopes to institute an under-
graduate version of the course this year.
"Competition is motivating. I think it
will be good for undergraduate students
to know that they can participate in this
kind of competition."
"When students compete
against each other,
they are more motivated."