Understanding Perfect Secrecy: The One-time Pad

The One-time Pad is a method of encryption that guarantees perfect secrecy. This video, narrated with Elevenlabs for privacy, explores its principles. If you're interested in trying it yourself, you can sign up using ...

Understanding Perfect Secrecy: The One-time Pad
Premature Abstraction
1.6K views • Sep 21, 2025
Understanding Perfect Secrecy: The One-time Pad

About this video

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

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Video Information

Views

1.6K

Likes

104

Duration

10:19

Published

Sep 21, 2025

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