Struct zebra_chain::sapling::NoteCommitment

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pub struct NoteCommitment(pub AffinePoint);
Expand description

Note commitments for the output notes.

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§0: AffinePoint

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impl NoteCommitment

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pub fn new<T>( csprng: &mut T, diversifier: Diversifier, transmission_key: TransmissionKey, value: Amount<NonNegative> ) -> Result<(CommitmentRandomness, Self), NoteCommitmentError>
where T: RngCore + CryptoRng,

Generate a new NoteCommitment and the randomness used to create it.

We return the randomness because it is needed to construct a Note, before it is encrypted as part of an Output Description. This is a higher level function that calls NoteCommit^Sapling_rcm internally.

NoteCommit^Sapling_rcm (g*_d , pk*_d , v) := WindowedPedersenCommit_rcm([1; 6] || I2LEBSP_64(v) || g*_d || pk*_d)

https://zips.z.cash/protocol/protocol.pdf#concretewindowedcommit

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pub fn extract_u(&self) -> Fq

Hash Extractor for Jubjub (?)

https://zips.z.cash/protocol/protocol.pdf#concreteextractorjubjub

Trait Implementations§

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impl Clone for NoteCommitment

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fn clone(&self) -> NoteCommitment

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for NoteCommitment

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for NoteCommitment

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl From<ExtendedPoint> for NoteCommitment

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fn from(extended_point: ExtendedPoint) -> Self

Converts to this type from the input type.
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impl From<NoteCommitment> for [u8; 32]

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fn from(cm: NoteCommitment) -> [u8; 32]

Converts to this type from the input type.
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impl PartialEq for NoteCommitment

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fn eq(&self, other: &NoteCommitment) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for NoteCommitment

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl TryFrom<[u8; 32]> for NoteCommitment

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type Error = &'static str

The type returned in the event of a conversion error.
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fn try_from(bytes: [u8; 32]) -> Result<Self, Self::Error>

Performs the conversion.
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impl Copy for NoteCommitment

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impl Eq for NoteCommitment

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impl StructuralPartialEq for NoteCommitment

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