Struct sp_application_crypto::sr25519::Pair

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pub struct Pair(_);

Expand description

An Schnorrkel/Ristretto x25519 (“sr25519”) key pair.

Implementations

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impl Pair

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pub fn from_entropy(entropy: &[u8 ], password: Option<&str>) -> (Pair, [u8 ; 32])

Make a new key pair from binary data derived from a valid seed phrase.

This uses a key derivation function to convert the entropy into a seed, then returns the pair generated from it.

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pub fn verify_deprecated<M>(
 sig: &Signature,
 message: M,
 pubkey: &Public
) -> bool where
 M: AsRef<[u8 ]>,

Verify a signature on a message. Returns true if the signature is good. Supports old 0.1.1 deprecated signatures and should be used only for backward compatibility.

Trait Implementations

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impl Clone for Pair

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pub fn clone(&self) -> Pair

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 From<MiniSecretKey> for Pair

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pub fn from(sec: MiniSecretKey) -> Pair

Performs the conversion.

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impl Pair for Pair

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pub fn from_seed(seed: &[u8 ; 32]) -> Pair

Make a new key pair from raw secret seed material.

This is generated using schnorrkel’s Mini-Secret-Keys.

A MiniSecretKey is literally what Ed25519 calls a SecretKey, which is just 32 random bytes.

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pub fn public(&self) -> Public

Get the public key.

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pub fn from_seed_slice(seed: &[u8 ]) -> Result<Pair, SecretStringError>

Make a new key pair from secret seed material. The slice must be 32 bytes long or it will return None.

You should never need to use this; generate(), generate_with_phrase(), from_phrase()

type Public = Public

The type which is used to encode a public key.

type Seed = [u8 ; 32]

The type used to (minimally) encode the data required to securely create a new key pair. Read more

type Signature = Signature

The type used to represent a signature. Can be created from a key pair and a message and verified with the message and a public key. Read more

type DeriveError = Infallible

Error returned from the derive function.

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pub fn generate_with_phrase(password: Option<&str>) -> (Pair, String, [u8 ; 32])

Generate new secure (random) key pair and provide the recovery phrase. Read more

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pub fn from_phrase(
phrase: &str,
password: Option<&str>
) -> Result<(Pair, [u8 ; 32]), SecretStringError>

Returns the KeyPair from the English BIP39 seed phrase, or None if it’s invalid.

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pub fn derive<Iter>(
 &self,
 path: Iter,
 seed: Option<[u8 ; 32]>
) -> Result<(Pair, Option<[u8 ; 32]>), <Pair as Pair>::DeriveError> where
 Iter: Iterator<Item = DeriveJunction>,

Derive a child key from a series of given junctions.

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pub fn sign(&self, message: &[u8 ]) -> Signature

Sign a message.

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pub fn verify<M>(
 sig: &<Pair as Pair>::Signature,
 message: M,
 pubkey: &<Pair as Pair>::Public
) -> bool where
 M: AsRef<[u8 ]>,

Verify a signature on a message. Returns true if the signature is good.

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pub fn verify_weak<P, M>(sig: &[u8 ], message: M, pubkey: P) -> bool where
P: AsRef<[u8 ]>,
M: AsRef<[u8 ]>,

Verify a signature on a message. Returns true if the signature is good.

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pub fn to_raw_vec(&self) -> Vec<u8, Global>ⓘ
Notable traits for Vec<u8, A>
`impl<A> Write for Vec<u8, A> where A: Allocator,`

Return a vec filled with raw data.

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fn generate() -> (Self, Self::Seed )

Generate new secure (random) key pair. Read more

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fn from_string_with_seed(
s: &str,
password_override: Option<&str>
) -> Result<(Self, Option<Self::Seed>), SecretStringError>

Interprets the string s in order to generate a key Pair. Returns both the pair and an optional seed, in the case that the pair can be expressed as a direct derivation from a seed (some cases, such as Sr25519 derivations with path components, cannot). Read more

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fn from_string(
s: &str,
password_override: Option<&str>
) -> Result<Self, SecretStringError>

Interprets the string s in order to generate a key pair. Read more

Auto Trait Implementations

impl RefUnwindSafe for Pair

impl Send for Pair

impl Sync for Pair

impl Unpin for Pair

impl UnwindSafe for Pair

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

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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

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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

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

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pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘ
Notable traits for Box<W, Global>
`impl<W> Write for Box<W, Global> where W: Write + ?Sized, impl<R> Read for Box<R, Global> where R: Read + ?Sized, impl<I, A> Iterator for Box<I, A> where I: Iterator + ?Sized, A: Allocator, type Item = ::Item;impl<F, A> Future for Box<F, A> where F: Future + Unpin + ?Sized, A: Allocator + 'static, type Output = <F as Future>::Output;`

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

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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

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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

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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

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

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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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