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 Javier L

•Mar 2, 2018

Learning Cryptograpy is not a walk in the park as it requires a good understanding of the theoretical foundations and it is so easy to get wrong, yet it is essential for an IT professional to get a good grasp of the subject. This course is invaluable in that respect, the instructor presents the material in a clear, concise fashion without overwhelming with the math involved, giving the overview you need as a professional.

创建者 Kasun H

•Nov 26, 2017

This is one of the best cryptography courses I have seen. Initially, I felt that the course was going faster. So I skipped the course two times after following about two weeks :). But I thought to give another try for the third time. Then I started to get comfortable and understand in time.

I strongly recommend this course to people who are looking to get a better theoretical understanding of cryptographic primitives.

创建者 Ioannis G

•Oct 29, 2020

Excellent. Clear and to the point. A great variety of material and Dan is great in explaining everything. Material is wide but not too detailed if not needed, and there are many references to dive deeper if one wants to. It would be great if a Crash Course (specific for Security, e.g. hexing, mapping arrays) in Python would be given for the Programming Exercices, since otherwise it takes too much time to try ideas.

创建者 Adam Z

•Apr 4, 2018

A fantastic, university level course on Cryptography, most commonly referred to as the "gold standard". Personally, I found this course to be extremely helpful and assistive to my learning on the subject. However, I think that this course delves too deeply into the theory of cryptography, I think it would prove beneficial if Dan Boneh ran us through more coding examples or specific realistic use-cases.

创建者 Rafael I C

•Apr 12, 2020

Very interesting course where you learn how to analyze cryptographic constructions. I love the way is taught, building on top of basic constructions until you implement real-world systems. I certainly got interested in cryptography many times, but always dropped the courses before the end. This one got me hooked all the way!. The programming assignments were great to assimilate concepts. Well done!

创建者 Luigi S

•Jul 15, 2019

It took to me more than one month and a half to complete this course but it has been a great stimulus to learn fundamental concepts and tools about cryptography. One of the most difficult part has been public-key cryptography mostly due for its base on number theory but now I have a good knowledge of RSA and Diffie-Hellman key exchange protocol. I look forward for the 2nd part of the course.

创建者 Mark P

•May 5, 2017

Excellent in-depth introduction to the field of Cryptography! Absolutely rigorous treatment of the subject, down to every last mathematical detail. I feel like I sat in on a real university course at Stanford, and I believe this experience will help my work, my employer's products and will allow me to look critically at cryptographic code that comes across my desk. Thanks Prof. Boneh!

创建者 Pierre M

•Mar 6, 2018

A truly excellent course. The content is very well done and presented, the problem sets challenging enough and the programming assignments are interesting and really worth completing. Dr Boneh explains all the concepts in a very clear manner and has tons of practical examples to share, which bring to light what can at first sight seem a little abstract. I highly recommend this course.

创建者 Honey S

•Oct 11, 2020

Good course !! It introduces cryptography along with security proofs using mathematics. If you do not want mathematics part than this course if not for you.

I enjoyed the way professor proves security concepts of an algorithm using adversaries and challengers. It the changed way how I understand the cryptography algorithms after completing this course, rather than just standard steps.

创建者 Alexey G

•Aug 16, 2016

Amazing course and an outstanding teacher. Worth every penny and minute spent on this one. You learn not just how to build secure systems but also how NOT TO, which I consider even more valuable.The material is explained so fluently you have no doubts about professor's outstanding knowledge of it. This doesn't mean it's an easy course, though, so get prepared for some headache :)

创建者 Ovidio M

•Apr 13, 2020

An excellent course to learn the fundamentals of cryptography at a pretty deep level. It includes very well crafted programming assignments and tests. The professor is an expert in the field and very rigorous and precise. The materials are very well crafted and it contains a lot of interesting and useful references for extension. It was quite hard but it was definitely worth it.

创建者 Serikzhan U

•Jun 3, 2018

Thanks to Prof. Boneh and the whole Team for this brilliant course, and all the support provided. Although the program was quite challenging, it was very structured and informative, and provided an easy way to learn complex subjects. I'm looking forward to continuing to study cryptography discipline, and I would definitely recommend this course to my friends and colleagues.

创建者 Romain G

•Aug 28, 2020

Great course. It describes most commonly used encryption algorithms with fun historical examples. Explanations are given from diverse point of views including cyber attack, data protection and computational efficiency. Assignments are challenging enough for people comfortable with computer sciences, probability and number theory and maybe a bit hard for people who aren't.

创建者 jyoti y

•Oct 30, 2017

The course was extremely informative and interesting. I do not possess a computer science background and enrolled in the course just to learn a little about cryptography. While the learning curve was steep, the course content was engrossing that I did not want to stop. Infact, it motivated me to gain more knowledge in the field and I am currently learning programming. :)

创建者 Lior S

•Oct 19, 2016

This is a great course that was taught well, and had very helpful mentors. In general I found the course challenging but not too difficult. The reward was a good understanding of the open cryptographic protocols that are used in most real world applications. As minimum prerequisites, I would recommend having done courses in statistics, probability theory and programming.

创建者 Mark J

•Mar 9, 2022

This course was a great in depth introduction to modern cryptography. I had to learn some new mathematical notation to describe groups and I didn't have the time to complete the optional programming exercises. I believe that I now have a better understanding of the framework which relates one time pads, stream ciphers, block ciphers, and public-private key techniques.

创建者 Amal V

•Oct 2, 2016

I took the course in 2014, whether you are a beginner in cryptography or a regular practitioner, the course won't disappoint you. Another master class from Stanford. The problem sets and programming assignments are of reasonable difficulty. So if you are planning to take a course on cryptography, this is just the one- comprehensive and up to the expectations.

创建者 Quý Đ H N

•May 1, 2020

Thank you Coursera and The professor for such an oppotunity to learn Cryptography.

It's very challenging in the begining but the more i learn the more interesting the subject becomes. Professor Dan Boneh is really great at teaching the materials.

I hope that Cryptography II will be opened soon so that i could further my career in the cybersecurity field.

创建者 Abdur R R K

•Aug 25, 2017

This course has taught me crypto basics in the best possible way. I am eagerly waiting for the second part to enhance my knowledge about this interesting field. The Lectures and they way questions were formed in quizzes made the learning interesting and benefiting. Best wishes to the instructor and Organizer who arranged and compiled the course material.

创建者 Babich K

•Apr 7, 2020

Very interesting course! Good, balanced presentation of lecture material. Weekly tests make you think well and study the theory more deeply. Despite the fact that there are few questions in the tests, they are not so simple as not to open the textbook. Later I want to finish all optional programming tasks and read recommended books more carefully again.

创建者 Kenneth H

•Apr 9, 2017

This course is the real deal. You will have to work hard to pass it. It gives a solid overview of the main cryptographic concepts like pseudo random generators, functions and permutations, block and stream ciphers, public key encryption, and key exchange. If you haven't studied number theory, plan to spend some extra time getting up to speed.

创建者 Andrey A

•Oct 17, 2016

I am happy about the fact, that this course is teaches people very important Cryptography subtleties. This makes me think more about -- what would be the best way to preserve this information, so that it can guide future human generations! Thank you, Professor Dan Boneh! I am looking forward for the Crypto II. Kind Regards, Andrey Arapov

创建者 Isaac D

•Mar 16, 2018

This was a great intro cryptography course for someone with a strong mathematics background like myself! Not fluff, Dan Boneh cuts straight to the point. Every lecture is brilliantly presented and explanations are always thorough and easy to follow. Topics are relevant for real world applications. Amazing course. Can't wait for part 2.

创建者 Евгений С

•Jul 25, 2019

I liked this course very much, because it covers a lot of cryptogrpahy topics in a way accessible to most undegraduates with basic understanding of algebra. I especially liked the links to relevant papers in the end of every module. Dan explains everything in a very simple way.

Thanks for the course! Looking forward to the second part.

创建者 Aurimas Š

•Sep 26, 2017

Very interesting course, even though I come from engineering background and wanted to explore cryptograpy for fun, managed to understand the concepts and the course built a strong cryptographic foundation. Big thanks to professor Dan Boneh and all the mentors that answered questions in forums. Hopefully see you all in Cryptography II