2 ms·
I stumbled on this page after reading Matt Blaze's legendary paper about deducing master keys from physically strong, but cryptographically weak, physical syste
by jstrieb 3y ago
I stumbled on this page after reading Matt Blaze's legendary paper about deducing master keys from physically strong, but cryptographically weak, physical systems.
The paper is really good, and worth a read, even though it is from 2003:
https://www.mattblaze.org/papers/mk.pdf https://www.mattblaze.org/papers/mk.pdf
https://news.ycombinator.com/item?id=32306328 https://news.ycombinator.com/item?id=32306328
- Animats 3y agoYes. There are master keyed systems that don't have that combinatoric weakness. Here's the Lock Picking Lawyer disassembling a prison lock where there's a separate "master ring" for the master key. So combining settings from the master key and the operating key will not open the lock. This lock was opened with a wave rake, though, so it's not very good. [1] https://youtu.be/dleQ_bcbMJo?t=159 https://youtu.be/dleQ_bcbMJo?t=159