Struct sp_core::ecdsa::Signature[−][src]

pub struct Signature(pub [u8; 65]);

Expand description

A signature (a 512-bit value, plus 8 bits for recovery ID).

Implementations

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impl Signature

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pub fn from_raw(data: [u8; 65]) -> Signature

A new instance from the given 65-byte data.

NOTE: No checking goes on to ensure this is a real signature. Only use it if you are certain that the array actually is a signature. GIGO!

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pub fn from_slice(data: &[u8]) -> Self

A new instance from the given slice that should be 65 bytes long.

NOTE: No checking goes on to ensure this is a real signature. Only use it if you are certain that the array actually is a signature. GIGO!

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pub fn recover<M: AsRef<[u8]>>(&self, message: M) -> Option<Public>

Recover the public key from this signature and a message.

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pub fn recover_prehashed(&self, message: &[u8; 32]) -> Option<Public>

Recover the public key from this signature and a pre-hashed message.

Trait Implementations

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impl AsMut<[u8]> for Signature

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fn as_mut(&mut self) -> &mut [u8]

Performs the conversion.

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impl AsRef<[u8; 65]> for Signature

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fn as_ref(&self) -> &[u8; 65]

Performs the conversion.

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impl AsRef<[u8]> for Signature

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fn as_ref(&self) -> &[u8]

Performs the conversion.

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impl Clone for Signature

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fn clone(&self) -> Self

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 CryptoType for Signature

type Pair = Pair

The pair key type of this crypto.

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impl Debug for Signature

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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 Decode for Signature

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fn decode<__CodecInputEdqy: Input>(
    __codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn skip<I>(input: &mut I) -> Result<(), Error> where
    I: Input,

Attempt to skip the encoded value from input. Read more

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type. Read more

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impl Default for Signature

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fn default() -> Self

Returns the “default value” for a type. Read more

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impl<'de> Deserialize<'de> for Signature

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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
    D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

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impl Encode for Signature

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fn encode_to<__CodecOutputEdqy: Output + ?Sized>(
    &self, 
    __codec_dest_edqy: &mut __CodecOutputEdqy
)

Convert self to a slice and append it to the destination.

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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

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fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R

Convert self to a slice and then invoke the given closure with it.

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more

fn encoded_size(&self) -> usize

Calculates the encoded size. Read more

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impl From<(Signature, RecoveryId)> for Signature

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fn from(x: (Signature, RecoveryId)) -> Signature

Performs the conversion.

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impl From<Signature> for [u8; 65]

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fn from(v: Signature) -> [u8; 65]

Performs the conversion.

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impl Hash for Signature

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fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

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fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

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impl PartialEq<Signature> for Signature

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fn eq(&self, b: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl PassBy for Signature

type PassBy = Inner<Signature, [u8; 65]>

The strategy that should be used to pass the type.

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impl PassByInner for Signature

type Inner = [u8; 65]

The inner type that is wrapped by Self.

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fn into_inner(self) -> Self::Inner

Consumes self and returns the inner type.

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fn inner(&self) -> &Self::Inner

Returns the reference to the inner type.

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fn from_inner(inner: Self::Inner) -> Self

Construct Self from the given inner.

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impl Serialize for Signature

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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where
    S: Serializer,

Serialize this value into the given Serde serializer. Read more

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impl TryFrom<&'_ [u8]> for Signature

type Error = ()

The type returned in the event of a conversion error.

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fn try_from(data: &[u8]) -> Result<Self, Self::Error>

Performs the conversion.

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impl<'a> TryFrom<&'a Signature> for (Signature, RecoveryId)

type Error = ()

The type returned in the event of a conversion error.

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fn try_from(x: &'a Signature) -> Result<(Signature, RecoveryId), Self::Error>

Performs the conversion.

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impl EncodeLike<Signature> for Signature

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impl Eq for 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

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T, U> AsByteSlice<T> for U where
    T: ToByteSlice,
    U: AsRef<[T]> + ?Sized,

pub fn as_byte_slice(&self) -> &[u8]

impl<T, U> AsMutByteSlice<T> for U where
    T: ToMutByteSlice,
    U: AsMut<[T]> + ?Sized,

pub fn as_mut_byte_slice(&mut self) -> &mut [u8]

impl<U> AsMutSliceOf for U where
    U: AsMut<[u8]> + ?Sized,

pub fn as_mut_slice_of<T>(&mut self) -> Result<&mut [T], Error> where
    T: FromByteSlice,

impl<U> AsSliceOf for U where
    U: AsRef<[u8]> + ?Sized,

pub fn as_slice_of<T>(&self) -> Result<&[T], Error> where
    T: FromByteSlice,

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impl<T> Borrow<T> for T where
    T: ?Sized,

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pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
    T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> CallHasher for T where
    T: Hash + ?Sized,

pub default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
    H: Hash + ?Sized,
    B: BuildHasher,

impl<T> DecodeAll for T where
    T: Decode,

pub fn decode_all(input: &[u8]) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more

impl<T> DecodeLimit for T where
    T: Decode,

pub fn decode_all_with_depth_limit(limit: u32, input: &[u8]) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more

pub fn decode_with_depth_limit(limit: u32, input: &[u8]) -> Result<T, Error>

Decode Self with the given maximum recursion depth. Read more

impl<T> Downcast for T where
    T: Any,

pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

pub fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

impl<T> DowncastSync for T where
    T: Any + Send + Sync,

pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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impl<T> DynClone for T where
    T: Clone,

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pub fn __clone_box(&self, Private) -> *mut ()

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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impl<T> FromFFIValue for T where
    T: PassBy,

type SelfInstance = T

As Self can be an unsized type, it needs to be represented by a sized type at the host. This SelfInstance is the sized type. Read more

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pub fn from_ffi_value(
    context: &mut dyn FunctionContext, 
    arg: <<T as PassBy>::PassBy as RIType>::FFIType
) -> Result<T, String>

Create SelfInstance from the given

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into<U> for T where
    U: From<T>,

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pub fn into(self) -> U

Performs the conversion.

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impl<T> IntoFFIValue for T where
    T: PassBy,

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pub fn into_ffi_value(
    self, 
    context: &mut dyn FunctionContext
) -> Result<<<T as PassBy>::PassBy as RIType>::FFIType, String>

Convert self into a ffi value.

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impl<T, Outer> IsWrappedBy<Outer> for T where
    T: From<Outer>,
    Outer: AsRef<T> + AsMut<T> + From<T>,

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pub fn from_ref(&Outer) -> &T

Get a reference to the inner from the outer.

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pub fn from_mut(&mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

impl<T> KeyedVec for T where
    T: Codec,

pub fn to_keyed_vec(&self, prepend_key: &[u8]) -> Vec<u8, Global>

Return an encoding of Self prepended by given slice.

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impl<T> RIType for T where
    T: PassBy,

type FFIType = <<T as PassBy>::PassBy as RIType>::FFIType

The ffi type that is used to represent Self.

impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> ToHex for T where
    T: AsRef<[u8]>,

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pub fn encode_hex<U>(&self) -> U where
    U: FromIterator<char>,

Encode the hex strict representing self into the result. Lower case letters are used (e.g. f9b4ca) Read more

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pub fn encode_hex_upper<U>(&self) -> U where
    U: FromIterator<char>,

Encode the hex strict representing self into the result. Upper case letters are used (e.g. F9B4CA) Read more

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impl<T> ToOwned for T where
    T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom<U> for T where
    U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

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pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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impl<T, U> TryInto<U> for T where
    U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

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pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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impl<S, T> UncheckedInto<T> for S where
    T: UncheckedFrom<S>,

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pub fn unchecked_into(Self) -> T

The counterpart to unchecked_from.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,

pub fn vzip(self) -> V

impl<S> Codec for S where
    S: Decode + Encode,

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impl<T> DeserializeOwned for T where
    T: for<'de> Deserialize<'de>,

impl<'_, '_, T> EncodeLike<&'_ &'_ T> for T where
    T: Encode,

impl<'_, T> EncodeLike<&'_ T> for T where
    T: Encode,

impl<'_, T> EncodeLike<&'_ mut T> for T where
    T: Encode,

impl<T> EncodeLike<Arc<T>> for T where
    T: Encode,

impl<T> EncodeLike<Box<T, Global>> for T where
    T: Encode,

impl<'a, T> EncodeLike<Cow<'a, T>> for T where
    T: ToOwned + Encode,

impl<T> EncodeLike<Rc<T>> for T where
    T: Encode,

impl<S> FullCodec for S where
    S: Decode + FullEncode,

impl<S> FullEncode for S where
    S: Encode + EncodeLike<S>,

impl<T> MaybeDebug for T where
    T: Debug,

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impl<T> MaybeRefUnwindSafe for T where
    T: RefUnwindSafe,