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sp_application_crypto::bandersnatch

Struct Pair

pub struct Pair { /* private fields */ }
Expand description

Bandersnatch secret key.

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impl Pair

pub fn seed(&self) -> [u8; 32]

Get the key seed.

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impl Pair

pub fn make_bytes(&self, input: &VrfInput) -> [u8; 32]

Generate VRF output bytes for the given input.

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impl Pair

pub fn ring_vrf_sign( &self, data: &VrfSignData, prover: &RingProver<<<BandersnatchSha512Ell2 as Suite>::Affine as AffineRepr>::BaseField, KZG<<BandersnatchSha512Ell2 as RingSuite>::Pairing>, <<BandersnatchSha512Ell2 as Suite>::Affine as AffineRepr>::Config>, ) -> RingVrfSignature

Produce a ring-vrf signature.

The ring signature is verifiable if the public key corresponding to the signing Pair is part of the ring from which the RingProver has been constructed. If not, the produced signature is just useless.

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impl AsMut<Pair> for Pair

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

Converts this type into a mutable reference of the (usually inferred) input type.
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impl AsRef<Pair> for Pair

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fn as_ref(&self) -> &Pair

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for Pair

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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 CryptoType for Pair

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type Pair = Pair

The pair key type of this crypto.
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impl From<Pair> for Pair

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fn from(inner: Pair) -> Self

Converts to this type from the input type.
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impl From<Pair> for Pair

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fn from(outer: Pair) -> Self

Converts to this type from the input type.
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impl NonAggregatable for Pair

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fn proof_of_possession_statement(owner: &[u8]) -> Vec<u8> ⓘ

Default proof_of_possession statement.
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impl Pair for Pair

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

Make a new key pair from secret seed material.

The slice must be 32 bytes long or it will return an error.

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

Derive a child key from a series of given (hard) junctions.

Soft junctions are not supported.

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fn to_raw_vec(&self) -> Vec<u8> ⓘ

Return a vector filled with the seed.

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type Seed = [u8; 32]

The type used to (minimally) encode the data required to securely create a new key pair.
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type Public = CryptoBytes<sp_core::::bandersnatch::Public::{constant#0}, (PublicTag, BandersnatchTag)>

The type which is used to encode a public key.
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type Signature = CryptoBytes<sp_core::::bandersnatch::Signature::{constant#0}, (SignatureTag, BandersnatchTag)>

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.
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type ProofOfPossession = CryptoBytes<sp_core::::bandersnatch::Signature::{constant#0}, (SignatureTag, BandersnatchTag)>

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.
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fn public( &self, ) -> CryptoBytes<sp_core::::bandersnatch::Public::{constant#0}, (PublicTag, BandersnatchTag)>

Get the public key.
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fn sign( &self, data: &[u8], ) -> CryptoBytes<sp_core::::bandersnatch::Signature::{constant#0}, (SignatureTag, BandersnatchTag)>

Sign a message.
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fn verify<M>( signature: &CryptoBytes<sp_core::::bandersnatch::Signature::{constant#0}, (SignatureTag, BandersnatchTag)>, data: M, public: &CryptoBytes<sp_core::::bandersnatch::Public::{constant#0}, (PublicTag, BandersnatchTag)>, ) -> bool
where M: AsRef<[u8]>,

Verify a signature on a message. Returns true if the signature is good.
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fn generate() -> (Self, Self::Seed)

Generate new secure (random) key pair. Read more
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fn generate_with_phrase(password: Option<&str>) -> (Self, String, Self::Seed)

Generate new secure (random) key pair and provide the recovery phrase. Read more
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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.
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fn from_seed(seed: &Self::Seed) -> Self

Generate new key pair from the provided seed. 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
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impl VrfCrypto for Pair

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type VrfInput = VrfInput

VRF input.
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type VrfPreOutput = VrfPreOutput

VRF pre-output.
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type VrfSignData = VrfSignData

VRF signing data.
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type VrfSignature = VrfSignature

VRF signature.
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impl VrfSecret for Pair

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fn vrf_sign(&self, data: &VrfSignData) -> VrfSignature

Sign VRF-specific data.
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fn vrf_pre_output( &self, input: &<Pair as VrfCrypto>::VrfInput, ) -> <Pair as VrfCrypto>::VrfPreOutput

Get VRF-specific pre-output.

Auto Trait Implementations§

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impl Freeze for Pair

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impl RefUnwindSafe for Pair

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impl Send for Pair

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impl Sync for Pair

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impl Unpin for Pair

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impl UnwindSafe for Pair

Blanket Implementations§

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impl<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

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impl<T> CloneToUninit for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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Causes self to use its Binary implementation when Debug-formatted.
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Causes self to use its LowerExp implementation when Debug-formatted.
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where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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Causes self to use its Pointer implementation when Debug-formatted.
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Causes self to use its UpperExp implementation when Debug-formatted.
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Causes self to use its UpperHex implementation when Debug-formatted.
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