You can find videos in the following link:
https://drive.google.com/drive/folders/1iP-rRakEVb5lRjMNvX01xsp6AQmkM59s?usp=sharing
Please note that this link is only accessible for the students of Koç University.
The official site for the Handbook of Applied Cryptography is (chapter PDF files are available for download):
http://www.cacr.math.uwaterloo.ca/hac/
Cryptography online course from Dan Boneh at Stanford University (via Coursera):
https://class.coursera.org/crypto-preview/lecture
Our own Proofs in Cryptography video lecture set (on Youtube)
https://www.youtube.com/watch?v=w441j6UMHBQ&list=PL4wmOqlgHT2lBQfChNbkNaTlJOXrqIlHe
Cryptography course at University of Washington. Main instructors are Josh Benaloh and Brian LaMacchia, with guest appearances by other Microsoft Research researchers. Includes video lectures (WebViewer is recommended):
http://courses.cs.washington.edu/courses/csep590a/11wi/video/
Applied Cryptography course on Udacity (videos available for download):
https://www.udacity.com/course/viewer#!/c-cs387/
This is the Lecture Notes on Cryptography by Shafi Goldwasser and Mihir Bellare:
http://cseweb.ucsd.edu/users/mihir/papers/gb.pdf
The official site for the book A Computational Introduction to Number Theory and Algebra by Victor Shoup:
Boaz Barak's Cryptography course web site at the Princeton University. It is a very good resource with links to useful extra reading:
http://www.cs.princeton.edu/courses/archive/spring10/cos433/
Lecture notes of Rafail Ostrovsky at UCLA, named Foundation of Cryptography:
www.cs.ucla.edu/~rafail/PUBLIC/OstrovskyDraftLecNotes2010.pdf
A good relation between Cryptography and Computational Complexity: Chapter 9 of the book Computational Complexity: A Modern Approach by Sanjeev Arora and Boaz Barak:
http://www.cs.princeton.edu/theory/complexity/ab_cryptochap.pdf