The course is brilliant! Mr Chang explains everything clearly, so that you can understand the material even if you don't have much time to deal with it.

A very neat and easy to follow course that introduces the basic concepts of cryptography and its use in modern world!

The course mainly covers criteria for security. I need more of cryptography in it. Its not completely useful.

This is fabulous course that i found, great assignment and questions make this course course worth full.

Interesting both theoretical and practical part of the course

It's ok, it's easy to learn! THX!

Simple, and effective :-)

very very useful for me

EXCELLENT

Overall really good. Instructor sometimes mispeaks and then writes something different down during the math sessions. This happens a couple of times with variable names. When mixed with some questionable handwriting which I assume is due to the digitizer it makes it hard to follow and you have to rewind to figure out what he meant instead of what he said but this is only a few times and it is possible. Overall I like the instructor, I like the content, and I learned.

The course was quite superficial on some topics, but keeping in mind that this is mostly a ramp-up to subsequent crypto courses, I think it was OK. The whiteboard segments are great, probably the best part of the course. The instructor is clear and pleasant to listen to. Spreading it over 4 weeks is too generous, it could probably be shortened to 3 or even 2. Thanks!

It is ok. not a lot of math. Ok for busy people.

too short explanations sometimes

Nice course and lectures

It was ok but not as challenging as I would have liked.