Functional encryption

A public-key encryption scheme in which a master secret key issues functional keys ${\mathsf{sk}}_f$, and a holder of ${\mathsf{sk}}_f$ learns $f(m)$ from an encryption of $m$ and nothing more.

TODO: syntax and security definition.

Participates in

Builds on Functional encryption

• FE ⇒ iO

Produces Functional encryption

• Hash function + iO ⇒ FE