# Trait ethcore_rpc::v1::traits::parity_signing::ParitySigning [−]

    pub trait ParitySigning: Sized + Send + Sync + 'static {
        type Metadata: Metadata;
        fn post_sign(&self,
                 H160,
                 Bytes)
                 -> Result<Either<U256, ConfirmationResponse>, Error>;
        fn post_transaction(&self,
                        Self::Metadata,
                        TransactionRequest)
                        -> BoxFuture<Either<U256, ConfirmationResponse>, Error>;
        fn check_request(&self, U256) -> Result<Option<ConfirmationResponse>, Error>;
        fn decrypt_message(&self, H160, Bytes) -> BoxFuture<Bytes, Error>;

        fn to_delegate(self) -> IoDelegate<Self, Self::Metadata> { ... }
    }

Signing methods implementation.

## Associated Types

### `type Metadata: Metadata`

Requests metadata

## Required Methods

### `fn post_sign(&self,
H160,
Bytes)
-> Result<Either<U256, ConfirmationResponse>, Error>`

Posts sign request asynchronously. Will return a confirmation ID for later use with check_transaction.

### `fn post_transaction(&self,
Self::Metadata,
TransactionRequest)
-> BoxFuture<Either<U256, ConfirmationResponse>, Error>`

Posts transaction asynchronously. Will return a transaction ID for later use with check_transaction.

### `fn check_request(&self, U256) -> Result<Option<ConfirmationResponse>, Error>`

Checks the progress of a previously posted request (transaction/sign). Should be given a valid send_transaction ID.

### `fn decrypt_message(&self, H160, Bytes) -> BoxFuture<Bytes, Error>`

Decrypt some ECIES-encrypted message. First parameter is the address with which it is encrypted, second is the ciphertext.

## Provided Methods

### `fn to_delegate(self) -> IoDelegate<Self, Self::Metadata>`

Transform this into an `IoDelegate`, automatically wrapping the parameters.

## Implementors

- `impl<C: 'static, M: 'static> ParitySigning for SigningQueueClient<C, M> where C: MiningBlockChainClient, M: MinerService`
- `impl<C: 'static, M: 'static> ParitySigning for SigningUnsafeClient<C, M> where C: MiningBlockChainClient, M: MinerService`

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