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....

BH

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.

LG

Dec 15, 2017

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.

筛选依据：

创建者 Michael B

•Feb 14, 2017

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...

创建者 Chris H

•Nov 22, 2016

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 :)

创建者 Puth G

•Dec 24, 2017

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

创建者 Ted W

•Oct 15, 2020

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.

创建者 Yaprak O

•Oct 14, 2019

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.

创建者 Stu M

•Nov 19, 2017

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.

创建者 Clare A

•May 31, 2020

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!

创建者 Ben T

•Jun 8, 2020

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.

创建者 Gabriela S

•Sep 7, 2017

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.

创建者 Ricardo S

•Jan 6, 2021

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.

创建者 Lucida

•Mar 2, 2020

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.

创建者 Paweł M L

•Oct 12, 2020

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 !

创建者 An P

•Aug 13, 2019

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.

创建者 Robert L

•Jun 3, 2017

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.

创建者 Oleg M

•Jun 10, 2021

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!

创建者 Chenming X

•Aug 4, 2019

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!

创建者 Feiyu L

•Apr 3, 2018

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...

创建者 John L

•Dec 9, 2016

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.

创建者 Michael S

•Dec 28, 2019

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.

创建者 George M

•Dec 23, 2016

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.

创建者 Marko D

•Jan 8, 2017

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

创建者 Geoffrey K

•Aug 7, 2016

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.

创建者 Utsav S

•Jun 20, 2020

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.

创建者 Debasish R C

•Oct 22, 2017

Very well explained. I am also reading some research papers, it has become very easy to understand what they are talking about. One must read the additional material for good results.

创建者 Alfred L

•Jan 14, 2017

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.