Struct diem_crypto::multi_ed25519::MultiEd25519Signature

pub struct MultiEd25519Signature { /* fields omitted */ }

Vector of the multi-key signatures along with a 32bit [u8; 4] bitmap required to map signatures with their corresponding public keys.

Note that bits are read from left to right. For instance, in the following bitmap [0b0001_0000, 0b0000_0000, 0b0000_0000, 0b0000_0001], the 3rd and 31st positions are set.

Implementations

impl MultiEd25519Signature

pub fn new(
    signatures: Vec<(Ed25519Signature, u8)>
) -> Result<Self, CryptoMaterialError>

This method will also sort signatures based on index.

pub fn signatures(&self) -> &Vec<Ed25519Signature>

Getter signatures.

pub fn bitmap(&self) -> &[u8; 4]

Getter bitmap.

pub fn to_bytes(&self) -> Vec<u8>

Serialize a MultiEd25519Signature in the form of sig0||sig1||..sigN||bitmap.

Trait Implementations

impl Clone for MultiEd25519Signature

fn clone(&self) -> MultiEd25519Signature

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MultiEd25519Signature

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MultiEd25519Signature

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

Deserialize this value from the given Serde deserializer.

impl Display for MultiEd25519Signature

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

Formats the value using the given formatter.

impl From<Ed25519Signature> for MultiEd25519Signature

fn from(ed_signature: Ed25519Signature) -> Self

Performs the conversion.

impl Hash for MultiEd25519Signature

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl Length for MultiEd25519Signature

fn length(&self) -> usize

The serialized length of the data

impl PartialEq<MultiEd25519Signature> for MultiEd25519Signature

fn eq(&self, other: &MultiEd25519Signature) -> bool

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

fn ne(&self, other: &MultiEd25519Signature) -> bool

This method tests for !=.

impl Serialize for MultiEd25519Signature

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

Serialize this value into the given Serde serializer.

impl Signature for MultiEd25519Signature

fn verify_arbitrary_msg(
    &self,
    message: &[u8],
    public_key: &MultiEd25519PublicKey
) -> Result<()>

Checks that self is valid for an arbitrary &u8 message using public_key. Outside of this crate, this particular function should only be used for native signature verification in Move.

type VerifyingKeyMaterial = MultiEd25519PublicKey

The associated verifying key type for this signature.

type SigningKeyMaterial = MultiEd25519PrivateKey

The associated signing key type for this signature

fn verify<T: CryptoHash + Serialize>(
    &self,
    message: &T,
    public_key: &MultiEd25519PublicKey
) -> Result<()>

Verification for a struct we unabmiguously know how to serialize and that we have a domain separation prefix for.

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

Convert the signature into a byte representation.

fn batch_verify<T: CryptoHash + Serialize>(
    message: &T,
    keys_and_signatures: Vec<(Self::VerifyingKeyMaterial, Self)>
) -> Result<()>

The implementer can override a batch verification implementation that by default iterates over each signature. More efficient implementations exist and should be implemented for many schemes.

impl TryFrom<&'_ [u8]> for MultiEd25519Signature

fn try_from(bytes: &[u8]) -> Result<MultiEd25519Signature, CryptoMaterialError>

Deserialize a MultiEd25519Signature. This method will also check for malleable signatures and bitmap validity.

type Error = CryptoMaterialError

The type returned in the event of a conversion error.

impl ValidCryptoMaterial for MultiEd25519Signature

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

Convert the valid crypto material to bytes.

impl Eq for MultiEd25519Signature

impl StructuralEq for MultiEd25519Signature

impl StructuralPartialEq for MultiEd25519Signature