Trait frame_system::offchain::SignMessage

pub trait SignMessage<T: SigningTypes> {
    type SignatureData;

    fn sign_message(&self, message: &[u8]) -> Self::SignatureData;
    fn sign<TPayload, F>(&self, f: F) -> Self::SignatureData
    where
        F: Fn(&Account<T>) -> TPayload,
        TPayload: SignedPayload<T>;
}

A message signer.

Required Associated Types

type SignatureData

A signature data.

May contain account used for signing and the Signature itself.

Required Methods

fn sign_message(&self, message: &[u8]) -> Self::SignatureData

Sign a message.

Implementation of this method should return a result containing the signature.

fn sign<TPayload, F>(&self, f: F) -> Self::SignatureDatawhere
    F: Fn(&Account<T>) -> TPayload,
    TPayload: SignedPayload<T>,

Construct and sign given payload.

This method expects f to return a SignedPayload object which is then used for signing.

Implementors

impl<T: SigningTypes, C: AppCrypto<T::Public, T::Signature>> SignMessage<T> for Signer<T, C, ForAll>

type SignatureData = Vec<(Account<T>, <T as SigningTypes>::Signature), Global>

impl<T: SigningTypes, C: AppCrypto<T::Public, T::Signature>> SignMessage<T> for Signer<T, C, ForAny>

type SignatureData = Option<(Account<T>, <T as SigningTypes>::Signature)>