dkg

Struct ThresholdKeys

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pub struct ThresholdKeys<C: Ciphersuite> { /* private fields */ }
Expand description

Threshold keys usable for signing.

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impl<C: Ciphersuite> ThresholdKeys<C>

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pub fn new( params: ThresholdParams, interpolation: Interpolation<C::F>, secret_share: Zeroizing<C::F>, verification_shares: HashMap<Participant, C::G>, ) -> Result<ThresholdKeys<C>, DkgError>

Create a new set of ThresholdKeys.

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pub fn scale(self, scalar: C::F) -> Option<ThresholdKeys<C>>

Scale the keys by a given scalar to allow for various account and privacy schemes.

This scalar is ephemeral and will not be included when these keys are serialized. The scalar is applied on top of any already-existing scalar/offset.

Returns None if the scalar is equal to 0.

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pub fn offset(self, offset: C::F) -> ThresholdKeys<C>

Offset the keys by a given scalar to allow for various account and privacy schemes.

This offset is ephemeral and will not be included when these keys are serialized. The offset is applied on top of any already-existing scalar/offset.

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pub fn current_scalar(&self) -> C::F

Return the current scalar in-use for these keys.

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pub fn current_offset(&self) -> C::F

Return the current offset in-use for these keys.

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pub fn params(&self) -> ThresholdParams

Return the parameters for these keys.

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pub fn original_group_key(&self) -> C::G

Return the original group key, without any tweaks applied.

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pub fn interpolation(&self) -> &Interpolation<C::F>

Return the interpolation method for these keys.

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pub fn group_key(&self) -> C::G

Return the group key, with the expected linear combination taken.

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pub fn original_secret_share(&self) -> &Zeroizing<C::F>

Return the underlying secret share for these keys, without any tweaks applied.

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pub fn original_verification_share(&self, l: Participant) -> C::G

Return the original (untweaked) verification share for the specified participant.

This will panic if the participant index is invalid for these keys.

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pub fn view( &self, included: Vec<Participant>, ) -> Result<ThresholdView<C>, DkgError>

Obtain a view of these keys, interpolated for the specified signing set, with the specified linear combination taken.

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pub fn write<W: Write>(&self, writer: &mut W) -> Result<()>

Write these keys to a type satisfying std::io::Write.

This will not include the ephemeral scalar/offset.

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pub fn serialize(&self) -> Zeroizing<Vec<u8>>

Serialize these keys to a Vec<u8>.

This will not include the ephemeral scalar/offset.

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pub fn read<R: Read>(reader: &mut R) -> Result<ThresholdKeys<C>>

Read keys from a type satisfying std::io::Read.

Trait Implementations§

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impl<C: Clone + Ciphersuite> Clone for ThresholdKeys<C>
where C::F: Clone,

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fn clone(&self) -> ThresholdKeys<C>

Returns a duplicate 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<C: Debug + Ciphersuite> Debug for ThresholdKeys<C>
where C::F: Debug,

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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<C: Ciphersuite> Zeroize for ThresholdKeys<C>

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fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler.

Auto Trait Implementations§

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impl<C> Freeze for ThresholdKeys<C>
where <C as Ciphersuite>::F: Freeze,

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impl<C> RefUnwindSafe for ThresholdKeys<C>
where <C as Ciphersuite>::F: RefUnwindSafe, <C as Ciphersuite>::G: RefUnwindSafe,

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impl<C> Send for ThresholdKeys<C>

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impl<C> Sync for ThresholdKeys<C>

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impl<C> Unpin for ThresholdKeys<C>
where <C as Ciphersuite>::F: Unpin,

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impl<C> UnwindSafe for ThresholdKeys<C>
where <C as Ciphersuite>::F: UnwindSafe + RefUnwindSafe, <C as Ciphersuite>::G: RefUnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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where Self: Binary,

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where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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where Self: Octal,

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where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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