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Learner Reviews & Feedback for Cryptography I by Stanford University

4,062 ratings

About the Course

Cryptography is an indispensable tool for protecting information in computer systems. In this course you will learn the inner workings of cryptographic systems and how to correctly use them in real-world applications. The course begins with a detailed discussion of how two parties who have a shared secret key can communicate securely when a powerful adversary eavesdrops and tampers with traffic. We will examine many deployed protocols and analyze mistakes in existing systems. The second half of the course discusses public-key techniques that let two parties generate a shared secret key. Throughout the course participants will be exposed to many exciting open problems in the field and work on fun (optional) programming projects. In a second course (Crypto II) we will cover more advanced cryptographic tasks such as zero-knowledge, privacy mechanisms, and other forms of encryption....

Top reviews


Jan 13, 2020

Provides a comprehensive introduction to cryptographic history, current technology, best practices and known attacker techniques. A great deal of material is covered in a relatively compact program.


Mar 10, 2017

Cutting edge cryptography topics. Good explanations and slides, but pause button is highly recommended. Can be a bit too mathematical for the general public, and not very formal for mathematicians.

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451 - 475 of 839 Reviews for Cryptography I

By kevin

Dec 16, 2017

it's useful for the new-person to learn the cryptography

By Jakub K

Mar 13, 2017

A fantastic overview of the subject. Highly recommended!

By Fakiha K

Apr 13, 2019

very informative and useful to learn about cryptography

By Ravi K

Jul 21, 2018

Probably the best Cryptography course available online.

By Shai R

Jan 19, 2018

Not a simple course but never the less I learned a lot!

By Vinh H T

Jul 2, 2017

This course help me more understand about Cryptography.

By 翁紫曦

Mar 11, 2016

Great class which inspired me with enormous excitements

By Vereese v T

Jul 23, 2020

Intellectually stimulating course! I had a lot of fun.

By 김완기

Nov 25, 2019

this lecture develop my cryptography knowledge. thanks

By Sajad H

Sep 11, 2019

Excellent course, but a little hard :)

Thanks Coursera!

By Tobias R

Jan 27, 2023

best course on Coursera. best course I've ever taken.

By Shepelev G M

Feb 18, 2022

Awesome! Want to get to the 2nd (advanced) part asap

By Aviya

Jun 25, 2020

very interesting material by a very clear instructor

By K.M. Z

Oct 24, 2017

I love this one... so much informative and precise.

By 郑宇

Aug 27, 2017

brilliant course!

can't not wait for the second part!

By Fuyang L

Oct 27, 2016

Quite challenge but it is very well prepared course.

By 宋铄运

Jun 30, 2019

The best possible Cryptography course in the world.

By Rafael C

Jan 21, 2020

Amazing! It's incredible that this course is free.

By Thomas N

Nov 22, 2018

Really enjoyed, looking forward to Cryptography II

By Alfredo G I

May 14, 2018

Great content and appropriate for non-cs students!

By Vishal J

Aug 27, 2017

Brilliant course! Good start towards Cryptography.

By Rahul C

Mar 16, 2017

very systematic and thorough application of crypto

By phani s s

May 22, 2021

Cryptography Basics are well taught and explained

By saisharvinth 1

Nov 9, 2019

Excellent course and learned a lot of new things.

By Shan X

Nov 7, 2018

How to give a six star??? This course is so good!