Master the RSA Public Key Cryptosystem in 9 short lessons

Some have heard of RSA. Others use RSA. Most don't understand RSA. After this course - You can do RSA Encryption.

4.35 (58 reviews)

Udemy

platform

English

language

Math

What you will learn

After the 9 short lessons of this course you will be able to encrypt data using the unbreakable RSA Public Key Cryptosystem.

Why take this course?

The RSA Public Key Cryptosystem is one of the best and widely used cryptosystems in the world today. Some people can talk a little about some of what RSA Encryption entails, but very few people can actually encrypt (and decrypt) data from start to finish using the RSA Public Key Cryptosystem.

Other topics covered during the course: Number Theory, Multiples, Factors, Products, Modular Arithmetic, Divisibility of Integers, Prime Numbers, Prime Factorization, Exponents, Exponential Laws, Binary Expansion of Integers, The Euler Phi Function, Euler's Formula, Fermat's Little Theorem, The Euclidean Algorithm, The Extended Euclidean Algorithm, Relative Prime Pairs of Integers, Encryption of secret messages, Decryption of secret messages, Shift Cypher, Successive Squaring, Middle School Mathematics, High School Mathematics, Pre-Algebra, Algebra I, Algebra II, Real-life Mathematics.

After this course you will know exactly how to encrypt and decrypt data using the RSA Public Key Cryptosystem. In seven video lessons you will become familiar with all the mathematics that is needed. In the last two videos you will learn exactly how to put that knowledge together to encrypt (lesson 8) and decrypt (lesson 9) data.

The level of mathematics involved is going to be a pleasant surprise. As an experienced middle and high school mathematics teacher I can tell you with confidence that by the time you were done with 10th grade, you knew (or should have known) all the math in this course.

Who would ever wonder where the mathematics they took in Middle and High School ever gets used in real life?

I tried to be thorough but managed to keep the course short. I know you do not have much time to watch videos and I do not have much time to make videos. The average length of the videos is under 10 minutes and the worksheets should never take you more than 20 or 30 minutes.

Who knows what new horizons you will see or what doors might open up for you after this course. I am excited for you.

Screenshots

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Reviews

Sarabjeet

September 26, 2023

Very well explained. Only 1 thing which could have been little better, if the concept of successive squaring was explained little better while doing the Encryption, like a live example. But awesome explaination. Thank You!

Pranav

November 26, 2022

A very good course, as a maths student this stuff is great using math in this way is very helpful to try and visualize where the stuff we learn in the classroom can actually be used in the real world, helps to know little background in number theory but the Denne is great

Carlos

December 5, 2021

Very good course to fully understand RSA, because it goes straight to the point and in a effectively way

Pablo

November 23, 2021

This course really helped me undestand the math behind RSA Encription. I enjoyed the clear explanations and the video format.

Engineer

April 21, 2021

The fundamentals are great, the speaker clearly knows his stuff. I think it would have been a great course if there was one more lesson on how all this is actually used in an actual PKI environment (i.e., what is private key, public key in the context of these prime numbers). Having said that, I'm leaving this course with a good solid understanding of not just how the encryption/decryption works with these numbers but also the basics behind it.

Lorn

March 9, 2021

Presented in a very clear manner and the worksheets are helpful. I recommend everyone who is involved in cyber security should view this course to have a fundamental understanding of the RSA method.

Pete

March 2, 2021

This is the second time I am watching this course. This teacher knows his stuff and does a great job teaching it. I hope that he teaches many more courses. Your not going to get to work on Jupyter Notebooks or any other techie stuff. It's just good 'ol paper, pen and calculator, breaking down the RSA system. If your willing to do the math work, this course is for you. Hat's off to the instructor for having this course.

Per

September 15, 2020

Excellent and succinct explanation of the RSA cryptosystem and prerequisite knowledge. Needed to come to grips with it very quickly for my discrete maths class, it was a huge help.