Linux & git

Multiply these numbers

491 x 673

This number is the product of two numbers. What are they? \[ 1247 = a \times b \]

This number is the product of two numbers. What are they? \[ 80851 = c \times d \]

RSA-2048 cryptography is based on the difficulty of a problem like this:

I generate two large, random prime numbers, \(p\) and \(q\), each of length 1024 bits. I then give you the product \[ n=p \times q \]

Find \(p\) and \(q\).

• If you have Microsoft Windows on you laptop, install the Windows Subsystem for Linux as follows:
  1. Open a PowerShell

  2. Give the command

     wsl --install
     

• Terminal
• Generate ssh key
  • Generate a key of type ed25519
  • How to Generate SSH keys in Windows 10 and Windows 11

  • On Mac, open Terminal

    ssh-keygen -t ed25519
    

  • Your private key is ~/.ssh/id_ed25519
  • Your public key is ~/.ssh/id_ed25519.pub

• Students entering Advanced Programming should have taken Intermediate Programming, Principles and Practice, where you learned low-level and pointer programming using C
• What's next?
• Deepen and broaden your knowledge
• Expand your programming skills. How to think about programming.
• Writing and reading programs.
• Software development tools: automation & collaboration

• Many programming languages. There is a baffling array of programming languages you could learn.
• For each programming language there are many libraries. There are around 100 libraries in just the Python Standard Libraries alone.
• Many frameworks. Even for something as specific as choosing a framework to build a web site in Python there are dozens of choices.
• We can narrow the choices down somewhat by categorising programming languages into Programming Paradigms.

• Course Manual
• In class: sometimes laptop, sometimes pen and paper.
• Mondays: learning. Thursdays: practising.
• Grading, assignments and submission
• Attendance, presence, tardiness, distractions.
• Guidelines on the use of Generative AI

• Operating Systems
• In the Beginning Was the Command Line
  • full text
• How to Use The Command Line
• code editor: Emacs
• It gets messy out there…