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Joseph J. Rushanan

Part-Time Lecturer


Mailing Address

Northeastern University
ATTN: Joseph Rushanan, 301 ME
360 Huntington Avenue
Boston, MA 02115-5000

Research Interests

  • Binary sequences
  • Wireless communication
  • Navigation


  • PhD in Mathematics, California Institute of Technology
  • MS in Mathematics, The Ohio State University
  • BS in Mathematics, The Ohio State University


Joseph J. Rushanan is a part-time lecturer at the Khoury College of Computer Sciences. A resident of Bedford, Massachusetts, Rushanan’s research and teaching areas include security, cryptography, and mathematics. He works as a principal mathematician at the MITRE Corporation, where his current focus is on GPS and other positioning, navigation, and timing research. He has worked at MITRE for over 30 years.

About Joseph

What are the specifics of your educational background?

All my degrees are in pure mathematics, with a background in computer science. My focus in school was in combinatorics and algebra. I taught many classes as an undergrad and in graduate school.

Although all of my degrees are in pure mathematics, I was focused on a career in industry, where I can apply mathematics to solve real problems. That said, I have also taught part-time while at MITRE for most of my 30 years.

What are your research interests?

I have worked in such diverse areas as binary sequences, wireless communication, and navigation. For example, I designed the spreading codes for the new civil GPS signal to be launched in the near future. I have more recently focused on security-related issues, such as applied cryptography.

What courses/subjects do you teach?

  • Applied cryptography
  • Concrete mathematics

In both cases, I try to emphasize as much as possible the application side of the mathematics.