Struct DiversifiableFullViewingKey
pub struct DiversifiableFullViewingKey {
fvk: FullViewingKey,
dk: DiversifierKey,
}Expand description
A Sapling key that provides the capability to view incoming and outgoing transactions.
This key is useful anywhere you need to maintain accurate balance, but do not want the ability to spend funds (such as a view-only wallet).
It comprises the subset of the ZIP 32 extended full viewing key that is used for the Sapling item in a ZIP 316 Unified Full Viewing Key.
Fields§
§fvk: FullViewingKey§dk: DiversifierKeyImplementations§
§impl DiversifiableFullViewingKey
impl DiversifiableFullViewingKey
pub fn from_bytes(bytes: &[u8; 128]) -> Option<DiversifiableFullViewingKey>
pub fn from_bytes(bytes: &[u8; 128]) -> Option<DiversifiableFullViewingKey>
Parses a DiversifiableFullViewingKey from its raw byte encoding.
Returns None if the bytes do not contain a valid encoding of a diversifiable
Sapling full viewing key.
pub fn fvk(&self) -> &FullViewingKey
pub fn fvk(&self) -> &FullViewingKey
Exposes the external [FullViewingKey] component of this diversifiable full viewing key.
pub fn to_internal_fvk(&self) -> FullViewingKey
pub fn to_internal_fvk(&self) -> FullViewingKey
Returns the internal [FullViewingKey] component of this diversifiable full viewing key.
pub fn to_nk(&self, scope: Scope) -> NullifierDerivingKey
pub fn to_nk(&self, scope: Scope) -> NullifierDerivingKey
Derives a nullifier-deriving key for the provided scope.
This API is provided so that nullifiers for change notes can be correctly computed.
pub fn to_ivk(&self, scope: Scope) -> SaplingIvk
pub fn to_ivk(&self, scope: Scope) -> SaplingIvk
Derives an incoming viewing key corresponding to this full viewing key.
pub fn to_external_ivk(&self) -> IncomingViewingKey
pub fn to_external_ivk(&self) -> IncomingViewingKey
Derives the external diversifiable incoming viewing key corresponding to this full viewing key.
pub fn to_ovk(&self, scope: Scope) -> OutgoingViewingKey
pub fn to_ovk(&self, scope: Scope) -> OutgoingViewingKey
Derives an outgoing viewing key corresponding to this full viewing key.
pub fn address(&self, j: DiversifierIndex) -> Option<PaymentAddress>
pub fn address(&self, j: DiversifierIndex) -> Option<PaymentAddress>
Attempts to produce a valid payment address for the given diversifier index.
Returns None if the diversifier index does not produce a valid diversifier for
this DiversifiableFullViewingKey.
pub fn find_address(
&self,
j: DiversifierIndex,
) -> Option<(DiversifierIndex, PaymentAddress)>
pub fn find_address( &self, j: DiversifierIndex, ) -> Option<(DiversifierIndex, PaymentAddress)>
Finds the next valid payment address starting from the given diversifier index.
This searches the diversifier space starting at j and incrementing, to find an
index which will produce a valid diversifier (a 50% probability for each index).
Returns the index at which the valid diversifier was found along with the payment
address constructed using that diversifier, or None if the maximum index was
reached and no valid diversifier was found.
pub fn default_address(&self) -> (DiversifierIndex, PaymentAddress)
pub fn default_address(&self) -> (DiversifierIndex, PaymentAddress)
Returns the payment address corresponding to the smallest valid diversifier index, along with that index.
pub fn diversified_address(
&self,
diversifier: Diversifier,
) -> Option<PaymentAddress>
pub fn diversified_address( &self, diversifier: Diversifier, ) -> Option<PaymentAddress>
Returns the payment address corresponding to the specified diversifier, if any.
In general, it is preferable to use find_address instead, but this method is
useful in some cases for matching keys to existing payment addresses.
pub fn change_address(&self) -> (DiversifierIndex, PaymentAddress)
pub fn change_address(&self) -> (DiversifierIndex, PaymentAddress)
Returns the internal address corresponding to the smallest valid diversifier index, along with that index.
This address MUST NOT be encoded and exposed to end users. User interfaces should instead mark these notes as “change notes” or “internal wallet operations”.
pub fn diversified_change_address(
&self,
diversifier: Diversifier,
) -> Option<PaymentAddress>
pub fn diversified_change_address( &self, diversifier: Diversifier, ) -> Option<PaymentAddress>
Returns the change address corresponding to the specified diversifier, if any.
In general, it is preferable to use change_address instead, but this method is
useful in some cases for matching keys to existing payment addresses.
pub fn decrypt_diversifier(
&self,
addr: &PaymentAddress,
) -> Option<(DiversifierIndex, Scope)>
pub fn decrypt_diversifier( &self, addr: &PaymentAddress, ) -> Option<(DiversifierIndex, Scope)>
Attempts to decrypt the given address’s diversifier with this full viewing key.
This method extracts the diversifier from the given address and decrypts it as a diversifier index, then verifies that this diversifier index produces the same address. Decryption is attempted using both the internal and external parts of the full viewing key.
Returns the decrypted diversifier index and its scope, or None if the address
was not generated from this key.
Trait Implementations§
§impl Clone for DiversifiableFullViewingKey
impl Clone for DiversifiableFullViewingKey
§fn clone(&self) -> DiversifiableFullViewingKey
fn clone(&self) -> DiversifiableFullViewingKey
Returns a copy of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read more§impl Debug for DiversifiableFullViewingKey
impl Debug for DiversifiableFullViewingKey
§impl From<&ExtendedFullViewingKey> for DiversifiableFullViewingKey
impl From<&ExtendedFullViewingKey> for DiversifiableFullViewingKey
§fn from(extfvk: &ExtendedFullViewingKey) -> DiversifiableFullViewingKey
fn from(extfvk: &ExtendedFullViewingKey) -> DiversifiableFullViewingKey
Converts to this type from the input type.
§impl From<ExtendedFullViewingKey> for DiversifiableFullViewingKey
impl From<ExtendedFullViewingKey> for DiversifiableFullViewingKey
§fn from(extfvk: ExtendedFullViewingKey) -> DiversifiableFullViewingKey
fn from(extfvk: ExtendedFullViewingKey) -> DiversifiableFullViewingKey
Converts to this type from the input type.
Auto Trait Implementations§
impl Freeze for DiversifiableFullViewingKey
impl RefUnwindSafe for DiversifiableFullViewingKey
impl Send for DiversifiableFullViewingKey
impl Sync for DiversifiableFullViewingKey
impl Unpin for DiversifiableFullViewingKey
impl UnwindSafe for DiversifiableFullViewingKey
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R: 'a,
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§fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
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) -> R
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§fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
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function.§fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
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§fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
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