Subverting Deniability

ePrint Report: Subverting Deniability

Marcel Armour, Elizabeth A. Quaglia

Deniable public-key encryption (DPKE) is a cryptographic primitive that allows the sender of an encrypted message to later claim that they sent a different message.


DPKE's threat model assumes powerful adversaries who can coerce users to reveal plaintexts; it is thus reasonable to consider other advanced capabilities, such as the ability to subvert algorithms in a so-called Algorithm Substitution Attack (ASA). An ASA replaces a trusted algorithm with a subverted version …

deniability eprint report