Struct BLS_Pair

pub struct BLS_Pair<T>(/* private fields */)
where
    T: EngineBLS;

A key pair.

Trait Implementations

impl AsMut<Pair<TinyBLS<Bls12<Config>, Config>>> for Pair

fn as_mut(&mut self) -> &mut Pair

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<Pair<TinyBLS<Bls12<Config>, Config>>> for Pair

fn as_ref(&self) -> &Pair

Converts this type into a shared reference of the (usually inferred) input type.

impl<T> Clone for Pair<T>

where T: EngineBLS,

fn clone(&self) -> Pair<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> CryptoType for Pair<T>

where T: BlsBound,

type Pair = Pair<T>

The pair key type of this crypto.

impl From<Pair<TinyBLS<Bls12<Config>, Config>>> for Pair

fn from(inner: Pair) -> Self

Converts to this type from the input type.

impl<T> Pair for Pair<T>

where T: BlsBound,

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

Get the seed for this key.

type Seed = [u8; 32]

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

type Public = CryptoBytes<sp_core::::bls::Public::{constant#0}, (PublicTag, (BlsTag, T))>

The type which is used to encode a public key.

type Signature = CryptoBytes<sp_core::::bls::Signature::{constant#0}, (SignatureTag, (BlsTag, T))>

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.

type ProofOfPossession = CryptoBytes<sp_core::::bls::ProofOfPossession::{constant#0}, (SignatureTag, (BlsTag, T))>

The type used to represent proof of possession and ownership of private key is usually one or a set of signatures. Can be created from a key pair and message (owner id) and and verified with the owner id and public key.

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

Make a new key pair from secret seed material. The slice must be the correct size or an error will be returned.

fn derive<Iter>( &self, path: Iter, seed: Option<[u8; 32]>, ) -> Result<(Pair<T>, Option<[u8; 32]>), DeriveError>

where Iter: Iterator<Item = DeriveJunction>,

Derive a child key from a series of given junctions.

fn public(&self) -> <Pair<T> as Pair>::Public

Get the public key.

fn sign(&self, message: &[u8]) -> <Pair<T> as Pair>::Signature

Sign a message.

fn verify<M>( sig: &<Pair<T> as Pair>::Signature, message: M, pubkey: &<Pair<T> as Pair>::Public, ) -> bool

where M: AsRef<[u8]>,

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

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

Generate new secure (random) key pair.

fn generate_with_phrase(password: Option<&str>) -> (Self, String, Self::Seed)

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

fn from_phrase( phrase: &str, password: Option<&str>, ) -> Result<(Self, Self::Seed), SecretStringError>

Returns the KeyPair from the English BIP39 seed phrase, or an error if it’s invalid.

fn from_seed(seed: &Self::Seed) -> Self

Generate new key pair from the provided seed.

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).

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

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

impl<T> ProofOfPossessionGenerator for Pair<T>

where T: BlsBound,

fn generate_proof_of_possession( &mut self, owner: &[u8], ) -> <Pair<T> as Pair>::ProofOfPossession

Generate proof of possession for BLS12 curves.

Signs on:

• owner as sort of back cert and proof of ownership to prevent front runner attack
• on its own public key with unique context to prevent rougue key attack on aggregation

impl<T> ProofOfPossessionVerifier for Pair<T>

where T: BlsBound,

fn verify_proof_of_possession( owner: &[u8], proof_of_possession: &<Pair<T> as Pair>::ProofOfPossession, allegedly_possessed_pubkey: &<Pair<T> as Pair>::Public, ) -> bool

Verify both proof of ownership (back cert) and proof of possession of the private key