Trait EncodableSignature

pub trait EncodableSignature: Sized {
    // Required methods
    fn from_rs_and_parity<P: TryInto<Parity, Error = E>, E: Into<SignatureError>>(
        r: U256,
        s: U256,
        parity: P,
    ) -> Result<Self, SignatureError>;
    fn r(&self) -> U256;
    fn s(&self) -> U256;
    fn v(&self) -> Parity;
    fn with_parity<T: Into<Parity>>(self, parity: T) -> Self;

    // Provided methods
    fn with_chain_id(self, chain_id: u64) -> Self
       where Self: Copy { ... }
    fn with_parity_bool(self) -> Self
       where Self: Copy { ... }
    fn decode_rlp_vrs(buf: &mut &[u8]) -> Result<Self, Error> { ... }
    fn rlp_rs_len(&self) -> usize { ... }
    fn rlp_vrs_len(&self) -> usize { ... }
    fn write_rlp_rs(&self, out: &mut dyn BufMut) { ... }
    fn write_rlp_v(&self, out: &mut dyn BufMut) { ... }
    fn write_rlp_vrs(&self, out: &mut dyn BufMut) { ... }
}

Helper trait used to streamline signatures encoding.

Required Methods

fn from_rs_and_parity<P: TryInto<Parity, Error = E>, E: Into<SignatureError>>( r: U256, s: U256, parity: P, ) -> Result<Self, SignatureError>

Instantiate from v, r, s.

fn r(&self) -> U256

Returns the r component of this signature.

fn s(&self) -> U256

Returns the s component of this signature.

fn v(&self) -> Parity

Returns the recovery ID as a u8.

fn with_parity<T: Into<Parity>>(self, parity: T) -> Self

Sets the recovery ID by normalizing a v value.

Provided Methods

fn with_chain_id(self, chain_id: u64) -> Self

where Self: Copy,

Modifies the recovery ID by applying EIP-155 to a v value.

fn with_parity_bool(self) -> Self

where Self: Copy,

Modifies the recovery ID by dropping any [EIP-155] v value, converting to a simple parity bool.

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

Decode an RLP-encoded VRS signature.

fn rlp_rs_len(&self) -> usize

Length of RLP RS field encoding

fn rlp_vrs_len(&self) -> usize

Length of RLP V field encoding

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

Write R and S to an RLP buffer in progress.

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

Write the V to an RLP buffer without using EIP-155.

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

Write the VRS to the output. The V will always be 27 or 28.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl EncodableSignature for Signature

fn from_rs_and_parity<P: TryInto<Parity, Error = E>, E: Into<SignatureError>>( r: U256, s: U256, parity: P, ) -> Result<Self, SignatureError>

fn r(&self) -> U256

fn s(&self) -> U256

fn v(&self) -> Parity

fn with_parity<T: Into<Parity>>(self, parity: T) -> Self

Implementors