Struct MultiEd25519Signature 

pub struct MultiEd25519Signature { /* private fields */ }

Available on crate feature ed25519 only.

A multi-Ed25519 signature.

This contains individual Ed25519 signatures along with a bitmap indicating which signers provided signatures.

Implementations

impl MultiEd25519Signature

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

Creates a new multi-Ed25519 signature from individual signatures.

Arguments

• signatures - Vec of (signer_index, signature) pairs

The signer indices must be in ascending order and within bounds.

Errors

Returns AptosError::InvalidSignature if:

• No signatures are provided
• More than 32 signatures are provided
• A signer index is out of bounds (>= 32)
• Duplicate signer indices are present

pub fn from_bytes(bytes: &[u8]) -> AptosResult<Self>

Creates a signature from bytes.

Format: signature_1 || signature_2 || … || signature_m || bitmap (4 bytes)

Errors

Returns AptosError::InvalidSignature if:

• The bytes are too short (less than 4 bytes for bitmap)
• The signature bytes length doesn’t match the expected number of signatures from the bitmap
• Any individual signature fails to parse

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

Serializes the signature to bytes.

pub fn num_signatures(&self) -> usize

Returns the number of signatures.

pub fn signatures(&self) -> &[(u8, Ed25519Signature)]

Returns the individual signatures with their indices.

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

Returns the signer bitmap.

pub fn has_signature(&self, index: u8) -> bool

Checks if a particular index signed.

Trait Implementations

impl Clone for MultiEd25519Signature

fn clone(&self) -> MultiEd25519Signature

Returns a duplicate 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 PartialEq for MultiEd25519Signature

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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

const LENGTH: usize = 0

The length of the signature in bytes.

type PublicKey = MultiEd25519PublicKey

The public key type for this signature scheme.

fn from_bytes(bytes: &[u8]) -> AptosResult<Self>

Creates a signature from bytes.

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

Returns the signature as bytes.

fn to_hex(&self) -> String

Returns the signature as a hex string with 0x prefix.

impl Eq for MultiEd25519Signature

impl StructuralPartialEq for MultiEd25519Signature