Struct parity_crypto::publickey::Signature

source · [−]

#[repr(C)]
pub struct Signature(_);

Expand description

Signature encoded as RSV components

Implementations

impl Signature

pub fn r(&self) -> &[u8 ]ⓘNotable traits for &'_ mut [u8 ]`impl<'_> Write for &'_ mut [u8]impl<'_> Read for &'_ [u8]`

Get a slice into the ‘r’ portion of the data.

pub fn s(&self) -> &[u8 ]ⓘNotable traits for &'_ mut [u8 ]`impl<'_> Write for &'_ mut [u8]impl<'_> Read for &'_ [u8]`

Get a slice into the ‘s’ portion of the data.

pub fn v(&self) -> u8

Get the recovery byte.

pub fn into_electrum(self) -> [u8 ; 65]

Encode the signature into RSV array (V altered to be in “Electrum” notation).

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

Parse bytes as a signature encoded as RSV (V in “Electrum” notation). May return empty (invalid) signature if given data has invalid length.

pub fn from_rsv(r: &H256, s: &H256, v: u8) -> Self

Create a signature object from the RSV triple.

pub fn is_low_s(&self) -> bool

Check if this is a “low” signature (that s part of the signature is in range 0x1 and 0x7FFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF 5D576E73 57A4501D DFE92F46 681B20A0 (inclusive)). This condition may be required by some verification algorithms

pub fn is_valid(&self) -> bool

Check if each component of the signature is in valid range. r is in range 0x1 and 0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141 (inclusive) s is in range 0x1 and fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141 (inclusive) v is 0 or 1 Group order for secp256k1 defined as ‘n’ in “Standards for Efficient Cryptography” (SEC2) 2.7.1; used here as the upper bound for a valid (r, s, v) tuple

Trait Implementations

impl Clone for Signature

fn clone(&self) -> Self

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for Signature

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

impl Default for Signature

fn default() -> Self

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

impl Deref for Signature

type Target = [u8 ; 65]

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for Signature

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl Display for Signature

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

impl From<[u8 ; 65]> for Signature

fn from(s: [u8 ; 65]) -> Self

Performs the conversion.

impl From<H520> for Signature

fn from(bytes: H520) -> Self

Performs the conversion.

impl From<Signature> for H520

fn from(s: Signature) -> Self

Performs the conversion.

impl FromStr for Signature

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type. Read more

impl Hash for Signature

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

Feeds this value into the given Hasher. Read more

1.3.0 · source

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

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

impl Into<[u8 ; 65]> for Signature

fn into(self) -> [u8 ; 65]

Performs the conversion.

impl PartialEq<Signature> for Signature

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

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

1.0.0 · source

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

This method tests for !=.

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

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

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Same<T> for T

type Output = T

Should always be Self

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

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T

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

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

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

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

impl<T> ToString for T where
T: Display + ?Sized,

pub default fn to_string(&self) -> String

Converts the given value to a String. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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.

const: unstable · source

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

Performs the conversion.

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

pub fn vzip(self) -> V