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Crypto 1 just "ended". The final exam came out today.

It's been good, as in I never could have followed this thread before it, but I don't know about the first run, but there has been little to no professor interaction with this run of the course.

Which is a bit unfortunate. I don't have any education in modular arithmetic and I can only get half of those questions correct. Being completely lost as to why the other half are wrong, and being unable to get help or worked out answers (to be able to figure out where I'm going wrong before the final) really isn't the best.

Unfortunately I think this may be what we can expect from Coursera. If you're ready for it then it's great. (I've put Boneh's Crypto 1 in the top ten of courses I ever took.) But if you're not familiar with modular arithmetic then you're definitely not familiar with abstract algebra, in which case yeah you need to study that first.

Yep, I've had math through differential equations (so long ago it doesn't matter anymore), but never touched on abstract algebra that I can remember.

Thanks for the info.

(I didn't realize there was a fall run!) As for modular arithmetic did you check out the free book by Victor Shoup (it's mentioned on the course site) ? http://shoup.net/ntb/

As for professor interaction, it is a byproduct of the MOOC formula : don't expect too much from the professor, he is already teaching to thousands of students ! You'll have to manage your way through the discussion forums (who unfortunately have a lot of noise). During all the courses I took, I always managed to find answers like that.

Thanks for the link, for some reason I thought that book was on a different topic. I've found a series of lectures from Harvard Extension using the Artin Algebra book. I'm going to use that (and the new edition of the book) to pick up on the concepts I'm missing (over the course of the next few months)

The previous course I took with CourseRA had a decent amount of Prof and TA interaction, and the forums were well tended. But, I guess that could be down to the fact that the course was being used by the professor to instruct his actual University students at the same time.

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