This one is pretty great - https://www.coursera.org/learn/crypto https://www.coursera.org/learn/crypto Unfortunately, they never released the 2nd part on Cours

This one is pretty great - https://www.coursera.org/learn/crypto https://www.coursera.org/learn/crypto Unfortunately, they never released the 2nd part on Coursera - so you'll still have to research for a lot of concepts after this course. But nonetheless, this 1st part provides a solid foundation.