Module keys

Sapling key types.

Unused key types are not implemented, see PR #5476.

“The spend authorizing key ask, proof authorizing key (ak, nsk), full viewing key (ak, nk, ovk), incoming viewing key ivk, and each diversified payment address addr_d = (d, pk_d ) are derived from sk, as described in Sapling Key Components.” - §3.1

Structs

Diversifier

A Diversifier, as described in protocol specification §4.2.2.

EphemeralPublicKey

An ephemeral public key for Sapling key agreement.

TransmissionKey

A (diversified) TransmissionKey

ValidatingKey

A randomized validating key that should be used to validate spendAuthSig.

Constants

RANDOMNESS_BEACON_URS 🔒

The Randomness Beacon (“URS”).

Functions

diversify_hash 🔒

Used to derive a diversified base point from a diversifier value.

find_group_hash 🔒

FindGroupHash for JubJub, from zcash_primitives

jubjub_group_hash 🔒

GroupHash into Jubjub, aka GroupHash_URS