18.783 | Spring 2021 | Undergraduate

Elliptic Curves

Readings

There is no required text, but lecture notes are provided. We make reference to material in the five books listed below. In addition, there are citations and links to other references.

[Washington] = Washington, Lawrence C. Elliptic Curves: Number Theory and Cryptography. Chapman & Hall / CRC, 2008. ISBN: 9781420071467. (Errata (PDF)) [Preview with Google Books]. Online version.

[Milne] = Milne, James S. Elliptic Curves. BookSurge Publishing, 2006. ISBN: 9781419652578. (Addendum / erratum (PDF)). Online version (PDF - 1.5MB).

[Silverman] = Silverman, Joseph H. The Arithmetic of Elliptic Curves. Springer-Verlag, 2009. ISBN: 9780387094939. (Errata (PDF)) [Preview with Google Books]. Online version.

[Silverman (Advanced Topics)] = Silverman, Joseph H. Advanced Topics in the Arithmetic of Elliptic Curves. Springer-Verlag, 1994. ISBN: 9780387943251. (Errata (PDF)). Online version.

[Cox] = Cox, David A. Primes of the Form \(x^2 + ny^2\): Fermat, Class Field Theory, and Complex Multiplication. Wiley-Interscience, 1989. ISBN: 9780471506546. (Errata (PDF)). Online version.

Lecture 1: Introduction to Elliptic Curves

  • No readings assigned

Lecture 2: The Group Law and Weierstrass and Edwards Equations

Lecture 3: Finite Field Arithmetic

  • Gathen, Joachim von zur, and Jürgen Gerhard. Sections 3.2, 8.1–4, 9.1, 11.1, and 14.2–6 in Modern Computer Algebra. Cambridge University Press, 2003. ISBN: 9780521826464. [Preview with Google Books]
  • Cohen, Henri, Gerhard Frey, and Roberto Avanzi. Chapter 9 in Handbook of Elliptic and Hyperelliptic Curve Cryptography. Chapman & Hall / CRC, 2005. ISBN: 9781584885184. [Preview with Google Books]
  • Rabin, Michael O. “Probabilistic Algorithms in Finite Fields.” Society for Industrial and Applied Mathematics 9, no. 2 (1980): 273–80.

Lecture 4: Isogenies

  • [Washington] Section 2.9
  • [Silverman] Section III.4

Lecture 5: Isogeny Kernels and Division Polynomials

  • [Washington] Sections 3.2 and 12.3
  • [Silverman] Section III.4

Lecture 6: Endomorphism Rings

  • [Washington] Section 4.2
  • [Silverman] Section III.6

Lecture 7: Hasse’s Theorem and Point Counting

  • [Washington] Section 4.3

Lecture 8: Schoof’s Algorithm

Lecture 9: Generic Algorithms for the Discrete Logarithm Problem

Lecture 10: Index Calculus, Smooth Numbers, and Factoring Integers

Lecture 11: Elliptic Curve Primality Proving (ECPP)

Lecture 12: Endomorphism Algebras

  • [Silverman] Section III.9

Lecture 13: Ordinary and Supersingular Curves

  • [Silverman] Section III.1 and Chapter V
  • [Washington] Sections 2.7 and 4.6

Lecture 14: Elliptic Curves over C (Part I)

  • [Cox] Chapter 10
  • [Silverman] Sections VI.2–3
  • [Washington] Sections 9.1–2

Lecture 15: Elliptic Curves over C (Part II)

  • [Cox] Chapters 10 and 11
  • [Silverman] Sections VI.4–5
  • [Washington] Sections 9.2–3

Lecture 16: Complex Multiplication (CM)

  • [Cox] Chapter 11
  • [Silverman] Section VI.5
  • [Washington] Section 9.3

Lecture 17: The CM Torsor

  • [Cox] Chapter 7
  • [Silverman (Advanced Topics)] Section II.1.1

Lecture 18: Riemann Surfaces and Modular Curves

  • [Silverman (Advanced Topics)] Section I.2
  • [Milne] Section V.1

Lecture 19: The Modular Equation

  • [Cox] Chapter 11
  • [Milne] Section V.2
  • [Washington] pp. 273–74

Lecture 20: The Hilbert Class Polynomial

  • [Cox] Chapters 8 and 11

Lecture 21: Ring Class Fields and the CM Method

  • [Cox] Chapters 8 and 11 (cont.)

Lecture 22: Isogeny Volcanoes

  • Sutherland, Andrew V. “Isogeny Volcanoes.” The Open Book Series. 1, no. 1 (2013): 507–530.

Lecture 23: The Weil Pairing

  • Miller, Victor S. “The Weil Pairing, and Its Efficient Calculation.” Journal of Cryptology: The Journal of the International Association for Cryptologic Research (IACR) 17, no. 4 (2004): 235–61.
  • [Washington] Chapter 11
  • [Silverman] Section III.8

Lecture 24: Modular Forms and L-Functions

  • [Milne] Sections V.3–4

Lecture 25: Fermat’s Last Theorem

  • [Milne] Sections V.7–9
  • [Washington] Chapter 15
  • Cornell, Gary, Joseph H. Silverman, and Glenn Stevens. Chapter 1 in Modular Forms and Fermat’s Last Theorem. Springer, 2000. ISBN: 9780387989983. Online version.

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