pub struct PointShare<C: Curve> { /* private fields */ }Expand description
A share of a point on a curve, with its associated MACs and the keys for all other parties’ shares.
Implementations§
pub fn try_new( value: Point<C>, macs: Box<[Point<C>]>, keys: Box<[CurveKey<C>]>, ) -> Result<Self, PrimitiveError>
pub fn zero_from_alphas( alphas: impl ExactSizeIterator<Item = GlobalFieldKey<C::Scalar>>, ) -> Self
pub fn get_value(&self) -> &Point<C>
pub fn value(self) -> Point<C>
pub fn get_keys(&self) -> &[CurveKey<C>]
pub fn get_key(&self, index: PeerIndex) -> Option<&CurveKey<C>>
pub fn get_macs(&self) -> &[Point<C>]
pub fn get_mac(&self, index: PeerIndex) -> Option<&Point<C>>
pub fn get_alphas( &self, ) -> impl ExactSizeIterator<Item = GlobalCurveKey<C>> + '_
Trait Implementations§
Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
+ operator.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
+ operator.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
+ operator.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
+ operator.Source§fn add_assign(&mut self, other: &'a PointShare<C>)
fn add_assign(&mut self, other: &'a PointShare<C>)
Performs the
+= operation. Read moreSource§fn add_assign(&mut self, rhs: PointShare<C>)
fn add_assign(&mut self, rhs: PointShare<C>)
Performs the
+= operation. Read moreSource§fn add_plaintext(&self, constant: &Point<C>, is_peer_zero: IsFirstPeer) -> Self
fn add_plaintext(&self, constant: &Point<C>, is_peer_zero: IsFirstPeer) -> Self
Adds a public constant to the secret shared value, updating the keys accordingly. A designated peer (P_0) will modify its value, while the other peers will update their keys.
Source§fn add_plaintext_owned(
self,
constant: &Point<C>,
is_peer_zero: IsFirstPeer,
) -> Self
fn add_plaintext_owned( self, constant: &Point<C>, is_peer_zero: IsFirstPeer, ) -> Self
Adds a public constant to the secret shared value, updating the keys accordingly. A designated peer (P_0) will modify its value, while the other peers will update their keys.
type AssociatedInformation = bool
Source§fn clone(&self) -> PointShare<C>
fn clone(&self) -> PointShare<C>
Returns a duplicate 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 moreSource§fn conditional_select(a: &Self, b: &Self, choice: Choice) -> Self
fn conditional_select(a: &Self, b: &Self, choice: Choice) -> Self
Source§fn default() -> PointShare<C>
fn default() -> PointShare<C>
Returns the “default value” for a type. Read more
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>,
Deserialize this value from the given Serde deserializer. Read more
Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
* operator.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
* operator.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
* operator.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
* operator.Source§fn mul_assign(&mut self, other: &'a ScalarAsExtension<C>)
fn mul_assign(&mut self, other: &'a ScalarAsExtension<C>)
Performs the
*= operation. Read moreSource§fn mul_assign(&mut self, other: &'a Scalar<C>)
fn mul_assign(&mut self, other: &'a Scalar<C>)
Performs the
*= operation. Read moreSource§fn mul_assign(&mut self, rhs: ScalarAsExtension<C>)
fn mul_assign(&mut self, rhs: ScalarAsExtension<C>)
Performs the
*= operation. Read moreSource§fn mul_assign(&mut self, rhs: Scalar<C>)
fn mul_assign(&mut self, rhs: Scalar<C>)
Performs the
*= operation. Read moreSource§fn random_n<Container: FromIterator<Self>>(
rng: impl CryptoRngCore,
n_parties: usize,
) -> Container
fn random_n<Container: FromIterator<Self>>( rng: impl CryptoRngCore, n_parties: usize, ) -> Container
Generate one random field share per peer, with consistent MACs and keys across all peers.
fn random(_rng: impl CryptoRngCore) -> Self
Source§fn random_with(
rng: impl CryptoRngCore,
value_alphas: (Point<C>, Vec<GlobalCurveKey<C>>),
) -> Self
fn random_with( rng: impl CryptoRngCore, value_alphas: (Point<C>, Vec<GlobalCurveKey<C>>), ) -> Self
Generate a random field share from its global keys (alphas) and its share
Source§fn random_n_with_each<Container: FromIterator<Self>>(
rng: impl CryptoRngCore,
unauth_shares_and_alphas: impl IntoIterator<Item = (Point<C>, Vec<GlobalCurveKey<C>>)>,
) -> Container
fn random_n_with_each<Container: FromIterator<Self>>( rng: impl CryptoRngCore, unauth_shares_and_alphas: impl IntoIterator<Item = (Point<C>, Vec<GlobalCurveKey<C>>)>, ) -> Container
Generate one random field share per peer from their global keys (alphas).
fn random_n_with<Container: FromIterator<Self>>( rng: impl CryptoRngCore, size: usize, data: D, ) -> Container
Source§fn random_n_with<Container: FromIterator<Self>>(
rng: impl CryptoRngCore,
n_parties: usize,
secret_value_and_alphas: (Point<C>, Vec<Vec<GlobalCurveKey<C>>>),
) -> Container
fn random_n_with<Container: FromIterator<Self>>( rng: impl CryptoRngCore, n_parties: usize, secret_value_and_alphas: (Point<C>, Vec<Vec<GlobalCurveKey<C>>>), ) -> Container
Generate a random field share per peer from a value to secret share and global keys (alphas).
fn random_with( _source: impl CryptoRngCore, _data: (Point<C>, Vec<Vec<GlobalCurveKey<C>>>), ) -> Self
fn random_n_with_each<Container: FromIterator<Self>>( rng: impl CryptoRngCore, all_data: impl IntoExactSizeIterator<Item = D>, ) -> Container
Source§fn random_with(
rng: impl CryptoRngCore,
n_parties_value: (usize, Point<C>),
) -> Self
fn random_with( rng: impl CryptoRngCore, n_parties_value: (usize, Point<C>), ) -> Self
Generate a random field share with a specific secret share as value and random macs & keys.
fn random_n_with<Container: FromIterator<Self>>( rng: impl CryptoRngCore, size: usize, data: D, ) -> Container
fn random_n_with_each<Container: FromIterator<Self>>( rng: impl CryptoRngCore, all_data: impl IntoExactSizeIterator<Item = D>, ) -> Container
Source§fn random_n_with<Container: FromIterator<Self>>(
rng: impl CryptoRngCore,
n_parties: usize,
value: Point<C>,
) -> Container
fn random_n_with<Container: FromIterator<Self>>( rng: impl CryptoRngCore, n_parties: usize, value: Point<C>, ) -> Container
Secret share a value among n parties, generating an authenticated share for each peer with consistent MACs and keys across all peers.
Source§fn random_n_with_each<Container: FromIterator<Self>>(
rng: impl CryptoRngCore,
all_unauth_shares: impl IntoExactSizeIterator<Item = Point<C>>,
) -> Container
fn random_n_with_each<Container: FromIterator<Self>>( rng: impl CryptoRngCore, all_unauth_shares: impl IntoExactSizeIterator<Item = Point<C>>, ) -> Container
Generate a random field share with a specific secret share as value, with consistent random MACs and keys across all peers.
fn random_with(_rng: impl CryptoRngCore, _data: Point<C>) -> Self
Source§fn random_with(rng: impl CryptoRngCore, alphas: Vec<GlobalCurveKey<C>>) -> Self
fn random_with(rng: impl CryptoRngCore, alphas: Vec<GlobalCurveKey<C>>) -> Self
Generate a random field share from its global keys (alphas).
Source§fn random_n_with_each<Container: FromIterator<Self>>(
rng: impl CryptoRngCore,
all_alphas: impl IntoExactSizeIterator<Item = Vec<GlobalCurveKey<C>>>,
) -> Container
fn random_n_with_each<Container: FromIterator<Self>>( rng: impl CryptoRngCore, all_alphas: impl IntoExactSizeIterator<Item = Vec<GlobalCurveKey<C>>>, ) -> Container
Generate one random field share per peer from their global keys (alphas).
fn random_n_with<Container: FromIterator<Self>>( rng: impl CryptoRngCore, size: usize, data: D, ) -> Container
Source§fn random_with(rng: impl CryptoRngCore, n_parties: usize) -> Self
fn random_with(rng: impl CryptoRngCore, n_parties: usize) -> Self
Generate a random field share, with Macs and keys for all the other parties.
fn random_n_with<Container: FromIterator<Self>>( rng: impl CryptoRngCore, size: usize, data: D, ) -> Container
fn random_n_with_each<Container: FromIterator<Self>>( rng: impl CryptoRngCore, all_data: impl IntoExactSizeIterator<Item = D>, ) -> Container
Source§fn open_to(
&self,
for_peer: PeerIndex,
) -> Result<OpenPointShare<C>, PrimitiveError>
fn open_to( &self, for_peer: PeerIndex, ) -> Result<OpenPointShare<C>, PrimitiveError>
Open the share towards another peer.
Source§fn open_to_all_others(&self) -> impl ExactSizeIterator<Item = OpenPointShare<C>>
fn open_to_all_others(&self) -> impl ExactSizeIterator<Item = OpenPointShare<C>>
Open the share towards all other peers.
Source§fn reconstruct(
&self,
openings: &[OpenPointShare<C>],
) -> Result<Self::Secret, PrimitiveError>
fn reconstruct( &self, openings: &[OpenPointShare<C>], ) -> Result<Self::Secret, PrimitiveError>
Reconstruct a secret from openings coming from all other parties.
Source§type Opening = OpenPointShare<C>
type Opening = OpenPointShare<C>
The type that is sent to / received from other peers.
Source§fn reconstruct_all<T: Borrow<Self>>(
shares: &[T],
) -> Result<Self::Secret, PrimitiveError>
fn reconstruct_all<T: Borrow<Self>>( shares: &[T], ) -> Result<Self::Secret, PrimitiveError>
Reconstruct a secret from a collection of shares, by opening each share
towards all other peers, reconstructing
n secrets from the openings and
checking that they are all equal.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
- operator.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
- operator.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
- operator.Source§type Output = PointShare<C>
type Output = PointShare<C>
The resulting type after applying the
- operator.Source§fn sub_assign(&mut self, other: &'a PointShare<C>)
fn sub_assign(&mut self, other: &'a PointShare<C>)
Performs the
-= operation. Read moreSource§fn sub_assign(&mut self, rhs: PointShare<C>)
fn sub_assign(&mut self, rhs: PointShare<C>)
Performs the
-= operation. Read moreSource§fn verify_from_peer_with(
&self,
open_share: &OpenPointShare<C>,
peer: PeerIndex,
_verification_data: (),
) -> Result<(), PrimitiveError>
fn verify_from_peer_with( &self, open_share: &OpenPointShare<C>, peer: PeerIndex, _verification_data: (), ) -> Result<(), PrimitiveError>
Check the MACs of the share received from another peer.
Source§fn verify_with(
&self,
open_shares: &[OpenPointShare<C>],
_verification_data: (),
) -> Result<(), PrimitiveError>
fn verify_with( &self, open_shares: &[OpenPointShare<C>], _verification_data: (), ) -> Result<(), PrimitiveError>
Check the MACs of each share received from all other peers.
Source§type VerificationData = ()
type VerificationData = ()
The associated data that is used to verify this secret shared type.
Source§fn verify_all_with(
shares: &[Self],
verification_data: Self::VerificationData,
) -> Result<(), PrimitiveError>
fn verify_all_with( shares: &[Self], verification_data: Self::VerificationData, ) -> Result<(), PrimitiveError>
Verify all shares by opening each share towards all other peers and performing
pairwise verification of the openings.
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fn random_authenticated_for_n_peers_with<Container: FromIterator<Self>>( rng: impl CryptoRngCore, n_parties: usize, value: T, all_alphas: Vec<Vec<GlobalFieldKey<F>>>, ) -> Container
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fn verify( &self, openings: &[<T as Reconstructible>::Opening], ) -> Result<(), PrimitiveError>
Verify openings from all peers.
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opening: &<T as Reconstructible>::Opening,
peer_index: usize,
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fn verify_from( &self, opening: &<T as Reconstructible>::Opening, peer_index: usize, ) -> Result<(), PrimitiveError>
Verify an opening from a specific peer.
Source§fn verify_all(shares: &[T]) -> Result<(), PrimitiveError>
fn verify_all(shares: &[T]) -> Result<(), PrimitiveError>
Verify all shares by opening each share towards all other peers and performing
pairwise verification of the openings.