Encryption and Cryptography

It would be cool if you explained some modern cryptographic algorithms from scratch in a series of videos, like triple-DES or one of the variants of AES or RSA, and some hash functions like SHA-1 or MD5. I know this seems like a difficult topic, but with the appropriate warnings (like don't use in real-world applications, use the safer standard libraries), I think it would give plenty of content and it would also be very educational and demystifying (because there's a lot of university lectures but they are not accessible and don't give implementation examples as they usually tell the students to implement it themselves as homework.)
(: