This was a much more in depth and theory-based approach to cryptography than others I've taken. It was super valuable, even having prior experience working with many crypo primitives and protocol implementations.

Great course! I like the content and organization of the course. However, the last two weeks of the course were somehow complicated to understand. I will continue studying security and I am waiting for Crypto II.

Excellent course about Cryptograpgy. Dan Boneh makes it look easy.

I work in the field since one year, after that course I have a much better understanding of several topics that are critical in securing data.

The basic ideas in crypto are shown clearly and in an understandable way. I took this course because of interest, and after completing it, I developed a stronger desire to take a deeper look into this subject.

Course is very hard.

First step should be other course in cryptography (maybe Applied Cryptography - University of Colorado System).

Great knowledge, great course, very interesting, great instructor.

Thank you !

Awesome course. I would recommend anyone that is into the Cyber Security field to study the course and realize the beautiful of Cryptography. I cannot wait to study more *magic* in the second course of this.

I learned a lot. The Prof. Boneh explains everything very clearly (like the way of presenting). A course materials covers a lot of crypto staff, and are very comprehensive. I can't wait for Cryptography II.

The course is excellent! That was quite an intellectual challenge for me to complete it. It kept me interested despite of usual problems with time shortage. The lecturer is crisp, clear and very very good!

It was my first Cryptography course I am really excited to be one of the few students to complete it and I am really looking forward to the next chapter of this. But otherwise this is the best course ever

Really comprehensive. Explain cryptography from bottom up. After learning the primitives I have a better understanding over many cryptosystems. Appreciated it professor! Looking forward Cryptography II!

Aside from the average online courses, this one is almost at the university level and provides an advanced mathematical understanding of the fundamentals in the field of cryptography. Awesome!

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

This is a really interesting course with challenging hometasks and a lot of deep information about cryptography. I really enjoyed learning and (the most) enjoyed doing programming assignments!

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...

Muy completo. Los vídeos de las clases son bien claros, y los mini ejercicios están muy bien diseñados para mantener al estudiante activo. Los problemas de los exámenes me han gustado mucho

Excellent course. I've worked with cryptographic methods and practice for many years, but this course provided me with a stronger understanding of the underlying theory than I'd had before.

Great grounding of the cryptography basics, but does require a decent understanding of basic computing (bits, XORs) and some reading on finite field maths beforehand would definitely help.

Great Instructor, really enjoyed his style of expanding the math "sentences" into lay English EVERY SINGLE TIME! That really helped this learner "go with the flow" as my background is CS.

The course gives fundamentals of Cryptography. But I would say that it dig very deep with fundamentals so I would highly recommend this course if you need/want to understand Cryptoraphy

Great into to the disciple for those of use who are interested in it but don't have access to a formal crypto class for what ever reason. This class made me fall in love with Coursera.

It was an amazing experience. This course was suggested by my mentor to allow me to get in depth knowledge in cryptography. The course conveys all the latest protocols and mechanisms.

Great introduction to the concepts. I really enjoyed learning everything in this course. My only regret is that I was too busy to take time to do the optional programming assignments.

Brilliant course. Quizzes and exercises test good understanding of the concepts. Questions are simple if read carefully. Huge shout out to Dan for super efficiency in video lectures.

Excellent. This is a hardcore crypto course with a nice balance of theory and practice. I found the optional assignments particularly helpful to re-enforce concepts taught each week.