Security through obscurity. Using microdots to store secrets. by jseam | Devcon SEA

Thu, Oct 2, 2025, 12:00 AM

Key custody remains a tricky problem to solve. Most of the focus around improving the security of key custody revolve around software based approaches like secret sharing. However, physical approaches are also possible. This talk discusses on how to secure secrets using microdots and how microdots may be fabricated at home with legally accessible tools. Microdots is a technique which allows one to shrink documents down. This allows one to embed secrets in documents in plain sight. Speaker(s): jseam Skill level: Intermediate Track: Security Keywords: Digital Sovereignty, Cryptography, Security, Hardware wallets, Custody Follow us: https://twitter.com/efdevcon, https://twitter.com/ethereum, https://warpcast.com/devcon Learn more about devcon: https://www.devcon.org/ Learn more about ethereum: https://ethereum.org/ Visit the https://archive.devcon.org/ to gain access to the entire library of Devcon talks with the ease of filtering, playlists, personalized suggestions, decentralized access on Swarm, IPFS and more. Devcon is the Ethereum conference for developers, researchers, thinkers, and makers. Devcon SEA was held in Bangkok, Thailand on Nov 12 - Nov 15, 2024. Devcon is organized and presented by the Ethereum Foundation. To find out more, please visit https://ethereum.foundation/