[−][src]Trait frame_system::offchain::Signer

pub trait Signer<Public, Signature> {
    fn sign<Payload: Encode>(
        public: Public, 
        payload: &Payload
    ) -> Option<Signature>;
}

A trait responsible for signing a payload using given account.

Required methods

`fn sign<Payload: Encode>(public: Public, payload: &Payload) -> Option<Signature>`

Sign any encodable payload with given account and produce a signature.

Returns Some if signing succeeded and None in case the account couldn't be used.

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Implementors

`impl<Public, Signature, AppPublic> Signer<Public, Signature> for AppPublic where AppPublic: RuntimeAppPublic + AppPublic + From<<AppPublic as AppPublic>::Generic>, <AppPublic as RuntimeAppPublic>::Signature: AppSignature, Signature: From<<<AppPublic as RuntimeAppPublic>::Signature as AppSignature>::Generic>, Public: TryInto<<AppPublic as AppPublic>::Generic>,` [src]

A Signer implementation for any AppPublic type.

This implementation additionaly supports conversion to/from multi-signature/multi-signer wrappers. If the wrapped crypto doesn't match AppPublics crypto None is returned.

`fn sign<Payload: Encode>( public: Public, raw_payload: &Payload ) -> Option<Signature>`[src]