Struct Secp256r1Signature 

pub struct Secp256r1Signature { /* private fields */ }

Available on crate feature secp256r1 only.

A Secp256r1 (P-256) ECDSA signature.

Implementations

impl Secp256r1Signature

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

Creates a signature from raw bytes (64 bytes, r || s).

Security

Rejects high-S signatures to match Aptos on-chain verification behavior. The Aptos VM only accepts low-S (canonical) ECDSA signatures to prevent signature malleability attacks.

Errors

Returns AptosError::InvalidSignature if:

• The byte slice length is not exactly 64 bytes
• The bytes do not represent a valid Secp256r1 signature
• The signature has a high-S value (not canonical)

pub fn from_hex(hex_str: &str) -> AptosResult<Self>

Creates a signature from a hex string.

Errors

Returns AptosError::Hex if the hex string is invalid. Returns AptosError::InvalidSignature if the decoded bytes are not exactly 64 bytes or do not represent a valid Secp256r1 signature.

pub fn to_bytes(&self) -> [u8; 64]

Returns the signature as bytes (64 bytes, r || s).

pub fn to_hex(&self) -> String

Returns the signature as a hex string.

Trait Implementations

impl Clone for Secp256r1Signature

fn clone(&self) -> Secp256r1Signature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Secp256r1Signature

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Secp256r1Signature

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Secp256r1Signature

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

Formats the value using the given formatter.

impl PartialEq for Secp256r1Signature

fn eq(&self, other: &Secp256r1Signature) -> 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 Secp256r1Signature

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 Secp256r1Signature

const LENGTH: usize = SECP256R1_SIGNATURE_LENGTH

The length of the signature in bytes.

type PublicKey = Secp256r1PublicKey

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 Copy for Secp256r1Signature

impl Eq for Secp256r1Signature

impl StructuralPartialEq for Secp256r1Signature