Struct bls_dkg::key_gen::PublicKeySet
[−]pub struct PublicKeySet { /* private fields */ }
Expand description
A public key and an associated set of public key shares.
Implementations
impl PublicKeySet
impl PublicKeySet
pub fn threshold(&self) -> usize
pub fn threshold(&self) -> usize
Returns the threshold t
: any set of t + 1
signature shares can be combined into a full
signature.
pub fn public_key(&self) -> PublicKey
pub fn public_key(&self) -> PublicKey
Returns the public key.
Returns the i
-th public key share.
pub fn combine_signatures<T, I, S>(&self, shares: I) -> Result<Signature, Error> where
S: Borrow<SignatureShare>,
I: IntoIterator<Item = (T, S)>,
T: IntoFr,
pub fn combine_signatures<T, I, S>(&self, shares: I) -> Result<Signature, Error> where
S: Borrow<SignatureShare>,
I: IntoIterator<Item = (T, S)>,
T: IntoFr,
Combines the shares into a signature that can be verified with the main public key.
The validity of the shares is not checked: If one of them is invalid, the resulting signature also is. Only returns an error if there is a duplicate index or too few shares.
Validity of signature shares should be checked beforehand, or validity of the result afterwards:
let sk_set = SecretKeySet::random(3, &mut rand::thread_rng());
let sk_shares: Vec<_> = (0..6).map(|i| sk_set.secret_key_share(i)).collect();
let pk_set = sk_set.public_keys();
let msg = "Happy birthday! If this is signed, at least four people remembered!";
// Create four signature shares for the message.
let sig_shares: BTreeMap<_, _> = (0..4).map(|i| (i, sk_shares[i].sign(msg))).collect();
// Validate the signature shares.
for (i, sig_share) in &sig_shares {
assert!(pk_set.public_key_share(*i).verify(sig_share, msg));
}
// Combine them to produce the main signature.
let sig = pk_set.combine_signatures(&sig_shares).expect("not enough shares");
// Validate the main signature. If the shares were valid, this can't fail.
assert!(pk_set.public_key().verify(&sig, msg));
pub fn decrypt<'a, T, I>(
&self,
shares: I,
ct: &Ciphertext
) -> Result<Vec<u8, Global>, Error> where
I: IntoIterator<Item = (T, &'a DecryptionShare)>,
T: IntoFr,
pub fn decrypt<'a, T, I>(
&self,
shares: I,
ct: &Ciphertext
) -> Result<Vec<u8, Global>, Error> where
I: IntoIterator<Item = (T, &'a DecryptionShare)>,
T: IntoFr,
Combines the shares to decrypt the ciphertext.
pub fn derive_child(&self, index: &[u8]) -> PublicKeySet
pub fn derive_child(&self, index: &[u8]) -> PublicKeySet
Derives a child public key set for a given index.
pub fn from_bytes(bytes: Vec<u8, Global>) -> Result<PublicKeySet, Error>
pub fn from_bytes(bytes: Vec<u8, Global>) -> Result<PublicKeySet, Error>
Deserializes from big endian bytes
Trait Implementations
impl Clone for PublicKeySet
impl Clone for PublicKeySet
fn clone(&self) -> PublicKeySet
fn clone(&self) -> PublicKeySet
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl Debug for PublicKeySet
impl Debug for PublicKeySet
impl<'de> Deserialize<'de> for PublicKeySet
impl<'de> Deserialize<'de> for PublicKeySet
fn deserialize<__D>(
__deserializer: __D
) -> Result<PublicKeySet, <__D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,
fn deserialize<__D>(
__deserializer: __D
) -> Result<PublicKeySet, <__D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
impl From<Commitment> for PublicKeySet
impl From<Commitment> for PublicKeySet
fn from(commit: Commitment) -> PublicKeySet
fn from(commit: Commitment) -> PublicKeySet
Converts to this type from the input type.
impl Hash for PublicKeySet
impl Hash for PublicKeySet
impl Ord for PublicKeySet
impl Ord for PublicKeySet
impl PartialEq<PublicKeySet> for PublicKeySet
impl PartialEq<PublicKeySet> for PublicKeySet
fn eq(&self, other: &PublicKeySet) -> bool
fn eq(&self, other: &PublicKeySet) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
fn ne(&self, other: &PublicKeySet) -> bool
fn ne(&self, other: &PublicKeySet) -> bool
This method tests for !=
.
impl PartialOrd<PublicKeySet> for PublicKeySet
impl PartialOrd<PublicKeySet> for PublicKeySet
fn partial_cmp(&self, other: &PublicKeySet) -> Option<Ordering>
fn partial_cmp(&self, other: &PublicKeySet) -> Option<Ordering>
This method returns an ordering between self
and other
values if one exists. Read more
1.0.0 · sourcefn lt(&self, other: &Rhs) -> bool
fn lt(&self, other: &Rhs) -> bool
This method tests less than (for self
and other
) and is used by the <
operator. Read more
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
impl Serialize for PublicKeySet
impl Serialize for PublicKeySet
fn serialize<__S>(
&self,
__serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
__S: Serializer,
fn serialize<__S>(
&self,
__serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
__S: Serializer,
Serialize this value into the given Serde serializer. Read more
impl Eq for PublicKeySet
impl StructuralEq for PublicKeySet
impl StructuralPartialEq for PublicKeySet
Auto Trait Implementations
impl RefUnwindSafe for PublicKeySet
impl Send for PublicKeySet
impl Sync for PublicKeySet
impl Unpin for PublicKeySet
impl UnwindSafe for PublicKeySet
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> FmtForward for T
impl<T> FmtForward for T
fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
Causes self
to use its Binary
implementation when Debug
-formatted.
fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
Causes self
to use its Display
implementation when
Debug
-formatted. Read more
fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
Causes self
to use its LowerExp
implementation when
Debug
-formatted. Read more
fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
Causes self
to use its LowerHex
implementation when
Debug
-formatted. Read more
fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
Causes self
to use its Octal
implementation when Debug
-formatted.
fn fmt_pointer(self) -> FmtPointer<Self> where
Self: Pointer,
fn fmt_pointer(self) -> FmtPointer<Self> where
Self: Pointer,
Causes self
to use its Pointer
implementation when
Debug
-formatted. Read more
fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
Causes self
to use its UpperExp
implementation when
Debug
-formatted. Read more
fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
Causes self
to use its UpperHex
implementation when
Debug
-formatted. Read more
impl<T> Pipe for T where
T: ?Sized,
impl<T> Pipe for T where
T: ?Sized,
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
Pipes by value. This is generally the method you want to use. Read more
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,
Borrows self
and passes that borrow into the pipe function. Read more
fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
R: 'a,
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R: 'a,
Mutably borrows self
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fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R where
Self: Borrow<B>,
B: 'a + ?Sized,
R: 'a,
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Self: Borrow<B>,
B: 'a + ?Sized,
R: 'a,
Borrows self
, then passes self.borrow()
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fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
Mutably borrows self
, then passes self.borrow_mut()
into the pipe
function. Read more
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
Self: AsRef<U>,
U: 'a + ?Sized,
R: 'a,
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
Self: AsRef<U>,
U: 'a + ?Sized,
R: 'a,
Borrows self
, then passes self.as_ref()
into the pipe function.
fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R where
Self: AsMut<U>,
U: 'a + ?Sized,
R: 'a,
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Self: AsMut<U>,
U: 'a + ?Sized,
R: 'a,
Mutably borrows self
, then passes self.as_mut()
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Self: Deref<Target = T>,
T: 'a + ?Sized,
R: 'a,
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Self: Deref<Target = T>,
T: 'a + ?Sized,
R: 'a,
Borrows self
, then passes self.deref()
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impl<T> Tap for T
impl<T> Tap for T
fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
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B: ?Sized,
Immutable access to the Borrow<B>
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
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Mutable access to the BorrowMut<B>
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
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Mutable access to the AsMut<R>
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
Self: Deref<Target = T>,
T: ?Sized,
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Immutable access to the Deref::Target
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self where
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
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T: ?Sized,
Mutable access to the Deref::Target
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
Calls .tap()
only in debug builds, and is erased in release builds.
fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
Calls .tap_mut()
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
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Calls .tap_borrow()
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
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Self: BorrowMut<B>,
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Calls .tap_borrow_mut()
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
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Self: AsRef<R>,
R: ?Sized,
Calls .tap_ref()
only in debug builds, and is erased in release
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
Calls .tap_ref_mut()
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sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more