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Learner Reviews & Feedback for Cryptography I by Stanford University

4,251 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


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Very comprehensive overview of Cryptography. Though a bit too mathematical for me, the gist of it is very helpful to understand cryptocurrency protocol design of Bitcoin, Ethereum, Monero...


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Wonderful introduction to cryptography in little time. Well presented. Interesting case studies and examples. Easy to follow. Well constructed assignments. Interesting programming assignments.

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426 - 450 of 880 Reviews for Cryptography I

By Chilukuri k c

Jun 26, 2017

Excellent indepth teaching style with examples, really enjoyed it!!!

By Manish M

Jan 2, 2020

A wonderful beginning whoever wants to aspire in Infosec and crypto

By Robin B

Jul 12, 2019

Very informative and challenging also ! Good job to Mr. Dan Boneh !

By Ian G

Oct 25, 2018

Сложновато, но если вдумчиво все изучать, то просто круто! Спасибо!

By Prabhakaran K

Mar 24, 2016

Simply amazing! A great social service in the history of Education.

By Vinita J

May 13, 2023

Great course....nice learning experience. Thanks to the instructor

By Roman T

May 22, 2021

Easily one of the best courses on Coursera. Can't wait for part 2.

By Stefan R

Oct 8, 2020

Excellent course, brilliant tests. I'm looking forward to Part II.

By Александр С

Jun 14, 2017

That was easy at some parts, but really interesting. Best regards.

By 孙振宇

Jul 13, 2020

very usefull! I had to go over again even after passed final exam

By Mark J

Oct 21, 2018

Challenging and well put together. Well worth the time invested.

By baireddy n r

Jul 11, 2018

really usefull course for every one and easy to understand it!!!!

By Thomas L

Dec 11, 2017

Great course, taking the time to clearly define many new concepts

By Georgiy S

Nov 12, 2016

Very interesting course, I used it as Brain training. Thanks you.

By 刘家奇

Dec 4, 2022

Excellent course, I have learned a lot of interesting knowledge!

By Nicolas R

Jun 26, 2018

Great course that gives a strong basic knowledge of cryptography

By Fernando G

Apr 26, 2023

Excelente, exige mucho de ti y es extenuante, pero muy completo

By 武胜利

Jun 4, 2022

It is clear and sysmatic. thanks for the professional teacher.

By Sandra L G

Oct 20, 2020

The book before cryptography II is just what the doctor ordered

By Christopher W

Aug 15, 2016

A very challenging but worthwhile introduction to cryptography.


Jan 28, 2017

while i do my ms agree ,i found this course on the right time

By BlackHat

Feb 26, 2022

I fully developed my knowledge of Cryptography in this course

By Fernando G M G

Dec 20, 2020

One of the most difficult and beautiful courses I have taken.

By Pierre-Alexis V

May 27, 2020

Very interesting and didactic ! Many thanks Professor Boneh !

By tarun g

May 2, 2020

good course to start for people intrested in security feild.