Choosing your keyholders
Threshold cryptography is a math problem until the moment of recovery, when it becomes a social one. A short field guide to picking, briefing, and rotating the people who hold your shares.
PaperVault Blog
Notes on cold storage, threshold cryptography, and keeping secrets safe.
Latest posts
Choosing your m-of-n threshold
Threshold cryptography gives you two dials, and choosing them well is most of the work. A short tour of the failure modes, the standard configurations, and the heuristics that keep them working.
Cyclic Dependencies in Personal Security
Almost everyone's recovery plan contains a hidden loop. The cycles stay invisible in normal use, and become unrecoverable the moment something breaks.
Where the world's root keys live
The most consequential cryptographic keys are protected by physical objects in safes, not by any digital system. What the institutional practice looks like, and what individuals can take from it.