Understanding Perfect Secrecy: The One-time Pad

The One-time Pad is perfectly secret. This video was voiced using Elevenlabs for privacy reasons. If you want to try it out yourself, you can sign up using my affiliate link, which supports me with a small commission with no additional costs for you: https://try.elevenlabs.io/premature-abstraction 0:00 Cryptography seems broken 1:39 Definitions of secrecy 3:36 Perfect secrecy 5:33 The One-time Pad 7:04 Proof: The OTP is perfectly secret 8:20 Limitations 9:23 Applications Credit: Deep Back image: By https://www.eff.org/ - https://www.eff.org/, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=6740412 Enigma image: By William Warby from London, England - Enigma, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=46848023 CTR mode: By WhiteTimberwolf (SVG version) - Gwenda (PNG version), PNG version, Public Domain, https://commons.wikimedia.org/w/index.php?curid=26434109