Derive OVK via Blake2b as PRF^expand with t=2
@@ -111,7 +111,7 @@ impl fmt::Debug for OutgoingViewingKey {
}
impl From<SpendingKey> for OutgoingViewingKey {
- /// For this invocation of Blake2b-512 as PRF^expand, t=1.
+ /// For this invocation of Blake2b-512 as PRF^expand, t=2.
///
/// https://zips.z.cash/protocol/protocol.pdf#saplingkeycomponents
/// https://zips.z.cash/protocol/protocol.pdf#concreteprfs
