Passive-server SK-DEPIR with a database-independent key ⇒ Passive-server SK-DEPIR

Fully-black-box reduction · standard model · folklore · security loss: none

Statement

A passive-server SK-DEPIR scheme with a database-independent key, with $\mathsf{Setup}$ run as $\mathsf{KeyGen}$ followed by $\mathsf{Prep}$, is a passive-server SK-DEPIR scheme, with the same secret-key privacy advantage — folklore.