Malleable encryption means you can flip a bit in the encrypted message and the corresponding bit is flipped in the unencrypted plain text. Dr Tim Muller gives us some examples.
nb This video is a reupload due to an audio problem with the first version. For those interested there were tones at approx 2.1k and then at approx 5.5k & 9k - guessing computer fan noise as there were a couple of occasions where it changed frequency slightly possibly as it sped up or slowed down.
Computerphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://jane-st.co/computerphile
This video was filmed and edited by Sean Riley.
Computerphile is a sister project to Brady Haran's Numberphile. More at https://www.bradyharanblog.com
Choose to Build with AI
Matched to AI Ethics
AI Maker Residence 3
The third AI workshop taught by our legendary teacher, Nick Sarafa. This is a full-day hands-on training workshop for purposeful co-creation with AI using Claude Code.
Imagine having access to hundreds of billions of dollars of computing power and knowing exactly how to make it work for you through the power of super intelligence.
◆ Fri 09 Oct 2026◆ KOKO Cafe, London◆ With Nick Sarafa