[−][src]Struct nubls::Signature
A Signature is an Affine element of the G_2 group on the BLS12-381 curve.
We have an Option<Scalar> field for a Fragment ID in the case of Threshold signatures.
Implementations
impl Signature[src]
pub fn to_bytes(&self, buff: &mut [u8])[src]
Serializes the Signature by filling a buffer passed as an argument.
If the buffer is not big enough, this method will panic.
A Signature can be serialized in two ways:
-
96 bytes -- This is the case when a
Signatureis not a fragment to a threshold signature. -
128 bytes -- This is the case when a
Signatureis a fragment to a threshold signature. This allows us to store its fragment ID for Shamir's Secret Sharing.
Note: This serialization will probably change in the future. See https://github.com/nucypher/NuBLS/issues/3
pub fn from_bytes(bytes: &[u8]) -> Signature[src]
Deserializes from a &[u8; 96] to a Signature.
This will panic if the input is not canonical.
A Signature can be serialized in two ways:
-
96 bytes -- This is the case when a
Signatureis not a fragment to a threshold signature. -
128 bytes -- This is the case when a
Signatureis a fragment to a threshold signature. This allows us to store its fragment ID for Shamir's Secret Sharing.
Note: This serialization will probably change in the future. See https://github.com/nucypher/NuBLS/issues/3
Trait Implementations
impl Clone for Signature[src]
impl Copy for Signature[src]
impl Debug for Signature[src]
impl Eq for Signature[src]
impl PartialEq<Signature> for Signature[src]
impl StructuralEq for Signature[src]
impl StructuralPartialEq for Signature[src]
impl ThresholdSignature for Signature[src]
Implements Threshold BLS signatures on Signature.
We use Shamir's Secret Sharing scheme to share n fragments of a PrivateKey
where m fragments are needed to recover it.
For BLS threshold signatures, this translates to needing m signatures of
identical data to assemble the final Signature.
fn assemble(fragments: &[Signature]) -> Signature[src]
Assembles a Signature from collected signature fragments.
Note: The data signed by each of the fragment signatures must be identical,
or else the assembled Signature will be invalid.
This calculates the final signature by using Lagrange basis polynomials.
fn is_fragment(&self) -> bool[src]
Returns whether or not this is a fragment of a threshold signature.
Auto Trait Implementations
impl RefUnwindSafe for Signature
impl Send for Signature
impl Sync for Signature
impl Unpin for Signature
impl UnwindSafe for Signature
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<T> Conv for T
impl<T> FmtForward for T
fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
Self: Binary,
fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
Self: Display,
fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
Self: LowerExp,
fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
Self: LowerHex,
fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
Self: Octal,
fn fmt_pointer(self) -> FmtPointer<Self> where
Self: Pointer,
Self: Pointer,
fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
Self: UpperExp,
fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
Self: UpperHex,
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> Pipe for T
impl<T> PipeAsRef for T
fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
R: 'a,
Self: AsRef<T>,
T: 'a,
R: 'a,
Self: AsRef<T>,
T: 'a,
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R: 'a,
Self: AsMut<T>,
T: 'a,
R: 'a,
Self: AsMut<T>,
T: 'a,
impl<T> PipeBorrow for T
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R: 'a,
Self: Borrow<T>,
T: 'a,
R: 'a,
Self: Borrow<T>,
T: 'a,
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&'a mut self,
func: impl FnOnce(&'a mut T) -> R
) -> R where
R: 'a,
Self: BorrowMut<T>,
T: 'a,
&'a mut self,
func: impl FnOnce(&'a mut T) -> R
) -> R where
R: 'a,
Self: BorrowMut<T>,
T: 'a,
impl<T> PipeDeref for T
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R: 'a,
Self: Deref,
R: 'a,
Self: Deref,
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&'a mut self,
func: impl FnOnce(&'a mut Self::Target) -> R
) -> R where
R: 'a,
Self: DerefMut,
&'a mut self,
func: impl FnOnce(&'a mut Self::Target) -> R
) -> R where
R: 'a,
Self: DerefMut,
impl<T> PipeRef for T
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,
R: 'a,
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R: 'a,
R: 'a,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T> Tap for T
fn tap<F, R>(self, func: F) -> Self where
F: FnOnce(&Self) -> R,
F: FnOnce(&Self) -> R,
fn tap_dbg<F, R>(self, func: F) -> Self where
F: FnOnce(&Self) -> R,
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fn tap_mut<F, R>(self, func: F) -> Self where
F: FnOnce(&mut Self) -> R,
F: FnOnce(&mut Self) -> R,
fn tap_mut_dbg<F, R>(self, func: F) -> Self where
F: FnOnce(&mut Self) -> R,
F: FnOnce(&mut Self) -> R,
impl<T, U> TapAsRef<U> for T where
U: ?Sized,
U: ?Sized,
fn tap_ref<F, R>(self, func: F) -> Self where
F: FnOnce(&T) -> R,
Self: AsRef<T>,
F: FnOnce(&T) -> R,
Self: AsRef<T>,
fn tap_ref_dbg<F, R>(self, func: F) -> Self where
F: FnOnce(&T) -> R,
Self: AsRef<T>,
F: FnOnce(&T) -> R,
Self: AsRef<T>,
fn tap_ref_mut<F, R>(self, func: F) -> Self where
F: FnOnce(&mut T) -> R,
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,
Self: AsMut<T>,
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F: FnOnce(&mut T) -> R,
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,
Self: AsMut<T>,
impl<T, U> TapBorrow<U> for T where
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fn tap_borrow<F, R>(self, func: F) -> Self where
F: FnOnce(&T) -> R,
Self: Borrow<T>,
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F: FnOnce(&mut T) -> R,
Self: BorrowMut<T>,
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F: FnOnce(&mut T) -> R,
Self: BorrowMut<T>,
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fn tap_deref_dbg<F, R>(self, func: F) -> Self where
F: FnOnce(&Self::Target) -> R,
Self: Deref,
F: FnOnce(&Self::Target) -> R,
Self: Deref,
fn tap_deref_mut<F, R>(self, func: F) -> Self where
F: FnOnce(&mut Self::Target) -> R,
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
Self: DerefMut,
fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self where
F: FnOnce(&mut Self::Target) -> R,
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
Self: DerefMut,
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T[src]
pub fn clone_into(&self, target: &mut T)[src]
impl<T> TryConv for T
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,