Complete Knowledge: Preventing Encumbrance of Cryptographic Secrets

ePrint Report: Complete Knowledge: Preventing Encumbrance of Cryptographic Secrets

Mahimna Kelkar, Kushal Babel, Philip Daian, James Austgen, Vitalik Buterin, Ari Juels

Most cryptographic protocols model a player’s knowledge of secrets in a simple way. Informally, the player knows a secret in the sense that she can directly furnish it as a (private) input to a protocol, e.g., to digitally sign a message.


The growing availability of Trusted Execution Environments (TEEs) and secure multiparty computation, however, undermines this model of knowledge. …

availability environments eprint report input james knowledge message philip player private protocol protocols report secret secrets sign simple vitalik buterin