Struct EcdsaPublicKey 

pub struct EcdsaPublicKey { /* private fields */ }

Public key for ECDSA.

Stores the curve parameters and the public point Q = d·G.

Implementations

impl EcdsaPublicKey

pub fn curve(&self) -> &CurveParams

The curve parameters for this key.

pub fn public_point(&self) -> &AffinePoint

The public point Q = d·G.

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

Encode the public point as a compact SEC 1 point string.

pub fn from_wire_bytes(curve: CurveParams, bytes: &[u8]) -> Option<Self>

Rebuild a public key from a compact SEC 1 point string plus explicit curve parameters.

pub fn verify_message<H: Digest>( &self, message: &[u8], signature: &EcdsaSignature, ) -> bool

Convenience: hashes message with H then calls verify.

pub fn verify_message_bytes<H: Digest>( &self, message: &[u8], signature: &[u8], ) -> bool

Convenience: hashes message with H then calls verify_bytes.

pub fn verify(&self, digest: &[u8], signature: &EcdsaSignature) -> bool

Verify signature over a raw digest byte string.

The digest is reduced to a scalar representative matching FIPS 186-5 (leftmost bits(n) bits of the hash output).

pub fn verify_digest_scalar( &self, hash: &BigUint, signature: &EcdsaSignature, ) -> bool

Core ECDSA verification over a pre-reduced scalar z.

pub fn verify_bytes(&self, digest: &[u8], signature: &[u8]) -> bool

Verify a byte-encoded signature produced by [EcdsaPrivateKey::sign_bytes].

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

Encode the public key in the crate-defined binary format.

Layout: one field-type byte (0x00 = prime, 0x01 = binary) followed by [p, a, b, n, h, Gx, Gy, Qx, Qy] as a DER SEQUENCE of positive INTEGERs.

pub fn from_key_blob(blob: &[u8]) -> Option<Self>

Decode a public key from the crate-defined binary format.

pub fn to_pem(&self) -> String

pub fn from_pem(pem: &str) -> Option<Self>

Returns None if the PEM label does not match or the payload is malformed.

pub fn to_xml(&self) -> String

Panics

Panics only if a binary-field curve reports a degree that does not fit in u64, which would indicate malformed curve parameters.

pub fn from_xml(xml: &str) -> Option<Self>

Returns None if the XML root element, tag names, or integer encoding is invalid.

Trait Implementations

impl Clone for EcdsaPublicKey

fn clone(&self) -> EcdsaPublicKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EcdsaPublicKey

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

Formats the value using the given formatter.