u/gcnaccountin r/compsci • Recommends
The Magical Math behind Modern Cryptography
This presentation: link to this video
Introduces the magical math that secures our digital lives. It is presented graphically so complex ideas can be appreciated by the expert and layperson alike.
Presentation topics include:
How to achieve privacy when someone is always listening. (encryption)
How to decide on a secret when everyone is watching. (key agreement)
How to turn one random number into unlimited random numbers. (PRNGs)
How to speak in a way that's impossible to imitate. (digital signatures)
How to help protect data without possessing it. (secret sharing)
How to check work you can't see. (zero knowledge proofs)
How to process data you don'…