Definitely the most interesting course I've taken on Coursera. Great material, very well presented. I recommend doing the optional programming assignments, they're a lot of fun.

Great course! Highly recommend it if you're insterested in security primitives and the theory behind all ciphers we typically use, and how you can avoid the most common pitfalls.

awesome! It takes some time for me to understand some concepts and I need to pause a lot when watching the video, thus it may take you more time to study than the estimated time.

amazing course, i take it 6 years ago and forget everything, but again,learn crypto, like meet a familiar new friend, feel enjoyable with what professor Dan Boneh have taught me

Loved this course.... Dan Boneh is clear, and covers amazing subjects that were not perfectly for me before attending the course (RSA, DH...).

Great job and thank you very much !

I finished the first week of the course, the instructor makes it easier to understand, so far, the course is interesting, I now understands what cryptography is and how it works

I love the pace of the course. The content and narration is crisp and informative. Exactly what i was looking for. I loved the initial brush up sessions on discrete probability.

Wonderful, wonderful course. A journey that establish my mindset for cryptography. My only complain is the long-long wait for the second part of this course - Cryptography II.

What a course. I've learned so many things about cryptography. Dan Boneh is a really good teacher. Although the course is quite hard, I found myself enjoying studying. 5 stars

This is a very nice course. It is my first Crypto course. Professor Dan Boneh, you explained concepts nicely. It made me realize how crazy and intelligent hacks are possible.

excellent course，the professor explains the concept in this course surprisedly clear. Finish this course can build a fundamental structure to pursue research in crypto field

Dan Boneh is an excellent mentor and the way of teaching is awesome. Topics covered and way of explanation is brilliant and detailing of every topic is also an work of art.

Excellent course to master the basics of cryptography, and for smart card developers to understand what's written in the specifications. Crytpography II is my next goal :-)

The quality of the material in this course is astonishing and Dan Boneh presents it in an excellent pace, making this one of the best introducing courses for Cryptography.

This course was very interesting and the explanations, even tho at moments you may need to pause, were understandable and well-served. I am very satisfied by this course.

The course materials are well organized and concentrated. I fully enjoyed the course and learned a lot from it. Courses like this approach maximum efficiency for learning.

Very informative beginner course. Perfect for someone who needs to understand the basics. Prof Boneh's instructions were excellent and the quizzes were tough but valuable.

I took the course to get a theoretical understanding of cryptography. This course did that exceptionally well and is one of the best courses I've ever taken on Coursera.

Really good course, instructor provides real life examples a tries to avoid the mathematic abstractions to minimum - relying rather on intuition and pictorial examples.

A difficult, but rewarding course. Much more theoretical than I was expecting, and I would suggest a strong Maths background for anybody considering taking the course.

This is a really exciting and enjoyable course. I've learnt a lot. The segments are structured very well, and the assessment questions and exercises are very helpful.

Very clear yet challenging introduction to basic cryptography concepts. Be sure to take notes and practice as much as possible with the modular arithmetic presented.

I enjoyed the not-too-much-mathematical approach of diging into crypto basics. All popular (practical) questions arise and are discussed in understandable manner.

Excellent course.. A wonderful mix of sound theory and practical applications. Delivered by one of the top experts in the field and his excellent support team..

Very informative course. It deals with lot of practical examples of failures! Special thanks for additional programming tasks, particulary for the first one.