Dan Boneh is an excellent instructor - as you start wondering some questions during his lectures, the next minute he would answer it in the video. Some sections might be a bit too maths-heavy for those with no maths background.

Incredibly well explained- I learnt so much from a base of little knowledge and the format was really good. Weeks 7 and onwards are mentioned to be in a different course so I'll have to find that as well. Thank you very much!

It 's the second time I follow this course and I still find that so amazing. I'm waiting Crypto II until a year and I hope it will be released soon... Thanks Pr Boneh for sharing your little (for you) big (for me) knowledge !

Really cool course that was fun and very informative. Really well designed quizzes, homeworks, and programming assignments. It was pretty difficult compared to most online courses but I guess that's expected from Stanford...

Time consuming and hard work but very rewarding. Took me several attempts to finish (other life commitments kept getting in the way).

Will be doing it at least once more to try and finish all the programming exercises too :)

This Is AWESOMEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The extra assignments where the best! The lectures explain in a way it is easy to understand. And still the course holds a reasonable amount of mathematics and examples making the course a little more complex and deep.

Can be difficult at times but the concepts are definitely rewarding. The psets were creative and effectively asked students to apply concepts. Dan Boneh is articulate as always and knows how to get the subject across.

I started this course a long time ago, it feels great to finish it. There was a lot of theory, but the message of 'don't try it build it yourself' was driven home. I look forward to the other topics in cryptography 2.

I had not taken any cryptography classes before taking this class. Professor Boneh did a great job explaining the concepts, and I feel like I have a much better understanding of cryptography now. Excellent course!

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.

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.

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!

This course gives is perfect to start learning cryptography, explanations are detailed, topics carefully selected combining theory with real world examples and making emphasis in important details.

A really interesting and in-depth course. It is pretty challenging and requires good math/proof skills, but still quite fun. The course could use more study materials, for example lecture notes.

Really interesting, provides the basic grounds for understanding a lot of discussions out there. Wikipedia can be useful as a reference, but here I was able to learn about semantic security etc.

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...

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