Enum PrimitiveSignature 

pub enum PrimitiveSignature {
    Secp256k1(Signature),
    P256(P256SignatureWithPreHash),
    WebAuthn(WebAuthnSignature),
}

Primitive signature types that can be used standalone or within a Keychain signature. This enum contains only the base signature types: Secp256k1, P256, and WebAuthn. It does NOT support Keychain signatures to prevent recursion.

Note: This enum uses custom RLP encoding via to_bytes() and does NOT derive Compact. The Compact encoding is handled at the parent struct level (e.g., KeyAuthorization).

Variants

Secp256k1(Signature)

Standard secp256k1 ECDSA signature (65 bytes: r, s, v)

P256(P256SignatureWithPreHash)

P256 signature with embedded public key (129 bytes)

WebAuthn(WebAuthnSignature)

WebAuthn signature with variable-length authenticator data

Implementations

impl PrimitiveSignature

pub fn from_bytes(data: &[u8]) -> Result<PrimitiveSignature, &'static str>

Parse signature from bytes with backward compatibility

For backward compatibility with existing secp256k1 signatures:

• If length is 65 bytes: treat as secp256k1 signature (no type identifier)
• Otherwise: first byte is the signature type identifier

pub fn to_bytes(&self) -> Bytes

Encode signature to bytes

For backward compatibility:

• Secp256k1: encoded WITHOUT type identifier (65 bytes)
• P256/WebAuthn: encoded WITH type identifier prefix

pub fn encoded_length(&self) -> usize

Get the length of the encoded signature in bytes

For backward compatibility:

• Secp256k1: 65 bytes (no type identifier)
• P256/WebAuthn: includes 1-byte type identifier prefix

pub fn signature_type(&self) -> SignatureType

Get signature type

pub fn size(&self) -> usize

Get the in-memory size of the signature

pub fn recover_signer( &self, sig_hash: &FixedBytes<32>, ) -> Result<Address, RecoveryError>

Recover the signer address from the signature

This function verifies the signature and extracts the address based on signature type:

• secp256k1: Uses standard ecrecover (signature verification + address recovery)
• P256: Verifies P256 signature then derives address from public key
• WebAuthn: Parses WebAuthn data, verifies P256 signature, derives address

Trait Implementations

impl<'arbitrary> Arbitrary<'arbitrary> for PrimitiveSignature

fn arbitrary( u: &mut Unstructured<'arbitrary>, ) -> Result<PrimitiveSignature, Error>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest( u: Unstructured<'arbitrary>, ) -> Result<PrimitiveSignature, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl Clone for PrimitiveSignature

fn clone(&self) -> PrimitiveSignature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Compact for PrimitiveSignature

Available on crate feature reth-codec only.

fn to_compact<B>(&self, buf: &mut B) -> usize

where B: BufMut + AsMut<[u8]>,

Takes a buffer which can be written to. Ideally, it returns the length written to.

fn from_compact(buf: &[u8], len: usize) -> (PrimitiveSignature, &[u8])

Takes a buffer which can be read from. Returns the object and buf with its internal cursor advanced (eg..advance(len)).

fn specialized_to_compact<B>(&self, buf: &mut B) -> usize

where B: BufMut + AsMut<[u8]>,

“Optional”: If there’s no good reason to use it, don’t.

fn specialized_from_compact(buf: &[u8], len: usize) -> (Self, &[u8])

“Optional”: If there’s no good reason to use it, don’t.

impl Debug for PrimitiveSignature

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

Formats the value using the given formatter.

impl Decodable for PrimitiveSignature

fn decode(buf: &mut &[u8]) -> Result<PrimitiveSignature, Error>

Decodes the blob into the appropriate type. buf must be advanced past the decoded object.

impl Default for PrimitiveSignature

fn default() -> PrimitiveSignature

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PrimitiveSignature

fn deserialize<__D>( __deserializer: __D, ) -> Result<PrimitiveSignature, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Encodable for PrimitiveSignature

fn encode(&self, out: &mut dyn BufMut)

Encodes the type into the out buffer.

fn length(&self) -> usize

Returns the length of the encoding of this type in bytes.

impl Hash for PrimitiveSignature

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

where __H: Hasher,

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PrimitiveSignature

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

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PrimitiveSignature

impl StructuralPartialEq for PrimitiveSignature

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 168 bytes

Size for each variant:

• Secp256k1: 79 bytes
• P256: 129 bytes
• WebAuthn: 167 bytes