DORIAN GOLDFELD


Professor
Mathematics Building, Room 422
Columbia University
New York, NY 10027 

Telephone: (212) 854-4304
Fax: (212) 854-8962
e-mail: goldfeld@columbia.edu



Research Interests:  Number Theory
curriculum vitae
Publications

Books
Notes on Trace Formulae for SL(2,R)
Links:
(Goldfeld Conference photos)
Joint COLUMBIA-CUNY-NYU Number Theory Seminar

First  JNT Biennial Conference (2019)  

Bretton Woods Workshop on Multiple Dirichlet Series (2005)    (Conference photos)
AAG-KeyExchange
Decision Regarding World Record Musky Challenge
My Daughter's art work (including my portrait above)
Some Interesting Chemistry   
                          

TEACHING, FALL 2020

MATH UN3025,  Making, Breaking Codes

Instructor: Dorian Goldfeld
Day & Time: TR 1:10 2:25PM
Textbook:
Introduction to Cryptography and Coding Theory, 2nd edition, by Wade Trappe and Lawrence Washington.
Location:
ONLINE ONLY

 Syllabus:     

Course Notes:
Chinese Remainder Theorem
Pollard Attack
Pohlig-Hellman Attack

Birthday Attack
Elliptic Curve Crypto
Square Roots (mod p)                   
Square Roots (mod pq)
Zero Knowledge Proofs

Exams: 
Exam 1:  Thursday, October 8  (20% of course grade)
Exam 2:  Thursday, November 12  (20% of course grade)
Final Exam: Tuesday, December 22, 1:10-4:00pm 
(35 % of course grade)

Homework: (25% of course grade)