"Shufflecake: Plausible Deniability in 2025" talk by Tommaso "tomgag" Gagliardoni at OSCW (Open-Source Cryptography Workshop) 2025 2025-03-25, Hilton Hotel Sofia, Sofia, Bulgaria.

Shufflecake is a tool for Linux that allows to create multiple hidden volumes on a storage device in such a way that it is very difficult, even under forensic inspection, to prove the existence of such volumes. This is useful for people whose freedom of expression is threatened by repressive authorities or dangerous criminal organizations, in particular: whistleblowers, investigative journalists, and activists for human rights in oppressive regimes. You can consider Shufflecake a "spiritual successor" of tools such as TrueCrypt and VeraCrypt, but vastly improved

OSCW is a workshop that brings together practitioners interested in topics such as: the developer and user experience associated with open source cryptography projects, the production and maintenance challenges of open source cryptography projects, improving the downstream effects of security fixes on dependent projects, and best practices for designing clean-sheet crypto systems with modern primitives. The 2025 edition was co-located with other cryptography and security events such as RWC 2025 and ZK Proofs 7.

Tommaso "tomgag" Gagliardoniis a mathematician, cryptographer, hacktivist, and quantum security expert.