Best Cryptography Videos
The 90 Cryptography videos here were recommended by different people across different months. Choose by who it is for: 9 introductory, 23 intermediate, 48 for a general viewer, and 10 for someone who wants the harder derivation. Most of them are a talk. What they share is that one speaker finishes a claim, and the examples exist to hold that claim up. Channels you will keep seeing include Computerphile, aantonop, Black Hat.

1. Introduction for 15.S12 Blockchain and Money, Fall 2018
The opening lecture of MIT's Blockchain and Money course taught by Gary Gensler, covering the course plan, the history of failed digital currencies, cryptography and what a blockchain is.

Chip & PIN Fraud Explained - Computerphile
Computerphile interview with Prof.

The Lightning Network Explained (Litecoin/Bitcoin)
An 8-minute explainer on the Lightning Network and how it relates to Segwit, Bitcoin and Litecoin.

DEF CON 26 CRYPTO AND PRIVACY VILLAGE - Scott Arciszewski - No Way JOSE! Designing Cryptography
Scott Arciszewski's DEF CON 26 Crypto and Privacy Village talk critiquing the JOSE standards (JWT, JWS, JWE) and showing how to design cryptographic tokens more safely.

What is Bitcoin? (v1)
A two-minute animated introduction to Bitcoin from 2011, explaining it as a peer-to-peer digital currency.

ZFS Native Encryption by Tom Caputi
Tom Caputi presents the design of native encryption for ZFS at the OpenZFS Developer Summit, including design decisions and how authentication uses checksum fields.

A Conversation with Stewart Brand (Devcon4)
A panel conversation with Stewart Brand at Ethereum's Devcon4, where he recounts his life and work 'hacking civilization' and discusses the role of institutions in decentralization.

The Stellar Consensus Protocol | David Mazières | Talks at Google
David Mazieres presents the Stellar Consensus Protocol at Google, introducing federated Byzantine agreement.

Bitcoin Q&A: How Do I Secure My Bitcoin?
Andreas Antonopoulos answers a question about how to secure your Bitcoin.

Encryption: Last Week Tonight with John Oliver (HBO)
John Oliver's Last Week Tonight segment on encryption and the Apple versus FBI dispute after San Bernardino.

Crypto CEO Accidentally Describes Ponzi Scheme
Coffeezilla reacts to Sam Bankman-Fried's explanation of yield farming on the Odd Lots podcast, arguing he effectively described a Ponzi scheme.

Secrets From The Future
MC Frontalot's nerdcore song "Secrets From The Future" (2007), about secrets not staying hidden once future technology can break today's encryption.

Computer Security 161 Cryptocurrency Lecture
A UC Berkeley CS 161 lecture by Nicholas Weaver on cryptocurrency and blockchains, covering how they work and the case against them.

Beyond Passwords: Secure Authentication with Mozilla Persona
Dan Callahan presents Mozilla Persona, a decentralized, cross-browser authentication system that removes site passwords, at PyCon 2013.

The Lava Lamps That Help Keep The Internet Secure
Tom Scott visits Cloudflare's San Francisco office to show the wall of lava lamps whose camera feed is used as a source of entropy for random number generation.

DCEmu Reviews - 27C3 - Chaos Communication Congress 2010 - fail0verflow - FULL VIDEO
The fail0verflow 27C3 talk on breaking PS3 security, covering how Sony's implementation failed, including its ECDSA mistakes.

Cryptocurrency Explained: Money as a System-of-Control
Andreas Antonopoulos argues that money has a fourth function beyond store of value, medium of exchange and unit of account, which is as a system of control.

Lest We Remember: Cold Boot Attacks on Encryption Keys
A short Princeton CITP video describing cold boot attacks, where encryption keys remain in DRAM after power loss and can be recovered.

Inside a Secret Chinese Bitcoin Mine
Motherboard's 2014 visit to a secretive Bitcoin mining operation in a repurposed factory in Liaoning, China, one of six sites producing about 4,050 bitcoins a month.

Warren Buffett: Bitcoin Is An Asset That Creates Nothing | CNBC
In a CNBC interview with Becky Quick, Warren Buffett explains why he sees bitcoin as an asset that produces nothing.

Passkeys in Action | FIDO Alliance Demo Video
A FIDO Alliance demo with Google and Microsoft engineers showing passkeys working across operating systems, browsers, and devices.

Rick Reacts to Lightning (Again) and brings up a previously undiscussed flaw
Rick Falkvinge responds to viewer feedback on his earlier Lightning Network video and raises a flaw he says was not previously discussed.

Ch(e)at GPT? - Computerphile
Computerphile video in which Mike Pound explains a University of Maryland paper on watermarking LLM output.

The Internet Was Weeks Away From Disaster And No One Knew
Veritasium tells the story of the XZ backdoor, how a patient attacker became maintainer and nearly compromised SSH on Linux systems.