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Level 4 Diploma in Cyber Security

Finite fields and modular arithmetic: algebras, identities and inverses, GCD, LCM and Euclid's algorithm

CYB402 · Mathematics for Computer Science — Week 6 of 16

CourseCYB402
Week6 of 16
SemesterI
TutorOnline in the course chat

This week’s topics

Finite fields and modular arithmetic: algebras, identities and inverses, GCD, LCM and Euclid's algorithm

  1. Finite fields and modular arithmetic: algebras, identities and inverses, GCD, LCM and Euclid's algorithm
  2. Ordinary vs. modular arithmetic

What you will be able to do

  • 3.1 Describe the key principles of modular arithmetic and finite fields.
  • 3.3 Analyse the differences between ordinary and modular arithmetic.

Activity

Seminar, guided reading and a short written task: describe the key principles of modular arithmetic and finite fields.

Study materials

The teaching notes, exercises and videos of this week are in the student portal. Your portal is set up as soon as you receive final acceptance, so you can open them before the semester starts.
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Course chat

Admitted students ask questions on this week’s page in the student portal: an AI assistant trained on the course answers first, and during the course’s timetabled classes Connect to your tutor brings your tutor into the chat, who may start a call if needed.

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Course plan
  • Week 1: Number bases: binary, denary and hexadecimal, and convertin…
  • Week 2: Binary in computer science: binary addition and overflow, t…
  • Week 3: Propositional logic: Boolean operators and truth tables
  • Week 4: Set theory: Venn diagrams, notation, union, intersection an…
  • Week 5: Proof techniques: induction and strong induction, contradic…
  • Week 6: Finite fields and modular arithmetic: algebras, identities …
  • Week 7: Number-theoretic theorems (Fermat's little theorem, Euler's…
  • Midterm: Midterm evaluation
  • Week 9: Sequences and series: arithmetic, geometric and harmonic pr…
  • Week 10: Vectors and matrices: matrix multiplication, inverses and s…
  • Week 11: Matrix types and properties (trace, determinant), LU decomp…
  • Week 12: Applying Mathematics for Computer Science in practice: case…
  • Week 13: Assignment workshop: research, planning and referencing
  • Week 14: Assignment workshop: drafting, feedback and improvement
  • Week 15: Review and coursework completion
  • Final: Final assessment and submission
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