Struct zebra_chain::sapling::keys::TransmissionKey

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pub struct TransmissionKey(/* private fields */);
Expand description

A (diversified) TransmissionKey

In Sapling, secrets need to be transmitted to a recipient of funds in order for them to be later spent. To transmit these secrets securely to a recipient without requiring an out-of-band communication channel, the diversified transmission key is used to encrypt them.

Derived by multiplying a JubJub point derived from a Diversifier by the IncomingViewingKey scalar.

The diversified TransmissionKey is denoted pk_d in the specification. Note that it can be the identity point, since its type is KA^{Sapling}.PublicPrimeSubgroup which in turn is J^{(r)}.

Trait Implementations§

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impl Clone for TransmissionKey

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fn clone(&self) -> TransmissionKey

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 TransmissionKey

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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 From<TransmissionKey> for [u8; 32]

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fn from(pk_d: TransmissionKey) -> [u8; 32]

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

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fn eq(&self, other: &[u8; 32]) -> 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 PartialEq for TransmissionKey

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fn eq(&self, other: &TransmissionKey) -> 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 TryFrom<[u8; 32]> for TransmissionKey

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fn try_from(bytes: [u8; 32]) -> Result<Self, Self::Error>

Attempts to interpret a byte representation of an affine Jubjub point, failing if the element is not on the curve, non-canonical, or not in the prime-order subgroup.

https://github.com/zkcrypto/jubjub/blob/master/src/lib.rs#L411 https://zips.z.cash/zip-0216

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type Error = &'static str

The type returned in the event of a conversion error.
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impl Copy for TransmissionKey

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impl Eq for TransmissionKey

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impl StructuralPartialEq for TransmissionKey

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