appliedcrypto/unit04_public_key/lecture

e-Security Unit 4: Public Key

The key concepts are: Basics, RSA, Elliptic Curve and ElGamal.

What you should know at the end of unit?

• Explain how public key provides both privacy and identity verification.
  • Where would I find this info? This unit explains public key.
• Understand how the RSA process works, with a simple example.
• Understand how elliptic curve cryptography works, with a simple example.
• Explain the operation of PGP.
• Understands how the private key is used to check the identity of the sender, and how public key is used to preserve the privacy of the message.
• Explain how the e and d values are determined within the RSA method.
  • Where would I find this info? There are some examples here.

Presentations

• Week 4 Presentation (PDF) - Public Key Encryption: here.
• Week 4 Presentation (video) - Public Key Encryption: here.
• Week 4 Presentation (lecture video - 8 Feb 2020) - Public Key Encryption: here.

Examples

RSA Examples: here

Quick demos

• Introduction to RSA: here
• Introduction to Elliptic Curve: here
• Picking the Generator Value (G): here