Struct zebra_chain::orchard::shielded_data::ShieldedData
source · pub struct ShieldedData {
pub flags: Flags,
pub value_balance: Amount,
pub shared_anchor: Root,
pub proof: Halo2Proof,
pub actions: AtLeastOne<AuthorizedAction>,
pub binding_sig: Signature<Binding>,
}
Expand description
A bundle of Action
descriptions and signature data.
Fields§
§flags: Flags
The orchard flags for this transaction.
Denoted as flagsOrchard
in the spec.
value_balance: Amount
The net value of Orchard spends minus outputs.
Denoted as valueBalanceOrchard
in the spec.
The shared anchor for all Spend
s in this transaction.
Denoted as anchorOrchard
in the spec.
proof: Halo2Proof
The aggregated zk-SNARK proof for all the actions in this transaction.
Denoted as proofsOrchard
in the spec.
actions: AtLeastOne<AuthorizedAction>
The Orchard Actions, in the order they appear in the transaction.
Denoted as vActionsOrchard
and vSpendAuthSigsOrchard
in the spec.
binding_sig: Signature<Binding>
A signature on the transaction sighash
.
Denoted as bindingSigOrchard
in the spec.
Implementations§
source§impl ShieldedData
impl ShieldedData
sourcepub fn actions(&self) -> impl Iterator<Item = &Action>
pub fn actions(&self) -> impl Iterator<Item = &Action>
Iterate over the Action
s for the AuthorizedAction
s in this
transaction, in the order they appear in it.
sourcepub fn nullifiers(&self) -> impl Iterator<Item = &Nullifier>
pub fn nullifiers(&self) -> impl Iterator<Item = &Nullifier>
Collect the Nullifier
s for this transaction.
sourcepub fn binding_verification_key(&self) -> VerificationKeyBytes<Binding>
pub fn binding_verification_key(&self) -> VerificationKeyBytes<Binding>
Calculate the Action binding verification key.
Getting the binding signature validating key from the Action description value commitments and the balancing value implicitly checks that the balancing value is consistent with the value transferred in the Action descriptions, but also proves that the signer knew the randomness used for the Action value commitments, which prevents replays of Action descriptions that perform an output. In Orchard, all Action descriptions have a spend authorization signature, therefore the proof of knowledge of the value commitment randomness is less important, but stills provides defense in depth, and reduces the differences between Orchard and Sapling.
The net value of Orchard spends minus outputs in a transaction is called the balancing value, measured in zatoshi as a signed integer cv_balance.
Consistency of cv_balance with the value commitments in Action descriptions is enforced by the binding signature.
Instead of generating a key pair at random, we generate it as a function of the value commitments in the Action descriptions of the transaction, and the balancing value.
sourcepub fn value_balance(&self) -> Amount<NegativeAllowed>
pub fn value_balance(&self) -> Amount<NegativeAllowed>
Provide access to the value_balance
field of the shielded data.
Needed to calculate the sapling value balance.
sourcepub fn note_commitments(&self) -> impl Iterator<Item = &Base>
pub fn note_commitments(&self) -> impl Iterator<Item = &Base>
Collect the cm_x’s for this transaction, if it contains Action
s with
outputs, in the order they appear in the transaction.
Trait Implementations§
source§impl Arbitrary for ShieldedData
impl Arbitrary for ShieldedData
§type Parameters = ()
type Parameters = ()
arbitrary_with
accepts for configuration
of the generated Strategy
. Parameters must implement Default
.source§fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy
fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy
§type Strategy = BoxedStrategy<ShieldedData>
type Strategy = BoxedStrategy<ShieldedData>
Strategy
used to generate values of type Self
.source§impl Clone for ShieldedData
impl Clone for ShieldedData
source§fn clone(&self) -> ShieldedData
fn clone(&self) -> ShieldedData
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for ShieldedData
impl Debug for ShieldedData
source§impl<'de> Deserialize<'de> for ShieldedData
impl<'de> Deserialize<'de> for ShieldedData
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,
source§impl Display for ShieldedData
impl Display for ShieldedData
source§impl PartialEq<ShieldedData> for ShieldedData
impl PartialEq<ShieldedData> for ShieldedData
source§fn eq(&self, other: &ShieldedData) -> bool
fn eq(&self, other: &ShieldedData) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl Serialize for ShieldedData
impl Serialize for ShieldedData
source§impl ZcashSerialize for ShieldedData
impl ZcashSerialize for ShieldedData
source§fn zcash_serialize_to_vec(&self) -> Result<Vec<u8>, Error>
fn zcash_serialize_to_vec(&self) -> Result<Vec<u8>, Error>
source§fn zcash_serialized_size(&self) -> usize
fn zcash_serialized_size(&self) -> usize
self
by using a fake writer.impl Eq for ShieldedData
impl StructuralEq for ShieldedData
impl StructuralPartialEq for ShieldedData
Auto Trait Implementations§
impl RefUnwindSafe for ShieldedData
impl Send for ShieldedData
impl Sync for ShieldedData
impl Unpin for ShieldedData
impl UnwindSafe for ShieldedData
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