Number Theory and Cryptography (MATH2068)
UNIT OF STUDY
Cryptography is the branch of mathematics that provides the techniques for confidential exchange of information sent via possibly insecure channels. This unit introduces the tools from elementary number theory that are needed to understand the mathematics underlying the most commonly used modern public key cryptosystems. Topics include the Euclidean Algorithm, Fermat's Little Theorem, the Chinese Remainder Theorem, Möbius Inversion, the RSA Cryptosystem, the Elgamal Cryptosystem and the Diffie-Hellman Protocol. Issues of computational complexity are also discussed.
Further unit of study information
Three 1 hour lectures, one 1 hour tutorial and one 1 hour computer laboratory per week.
2 hour exam, assignments, quizzes (100%)
Faculty/department permission required?
Unit of study rules
Prerequisites and assumed knowledge
6 credit points of Junior Mathematics units
MATH1014 or MATH1002 or MATH1902
MATH2988 or MATH3009 or MATH3024
Study this unit outside a degree
If you wish to undertake one or more units of study (subjects) for your own interest but not towards a degree, you may enrol in single units as a non-award student.
If you are from another Australian tertiary institution you may be permitted to underake cross-institutional study in one or more units of study at the University of Sydney.