Trait c2pa::RemoteSigner

pub trait RemoteSigner: Sync {
    // Required methods
    fn sign_remote<'life0, 'life1, 'async_trait>(
        &'life0 self,
        data: &'life1 [u8]
    ) -> Pin<Box<dyn Future<Output = Result<Vec<u8>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn reserve_size(&self) -> usize;
}

Required Methods

fn sign_remote<'life0, 'life1, 'async_trait>( &'life0 self, data: &'life1 [u8] ) -> Pin<Box<dyn Future<Output = Result<Vec<u8>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Returns the CoseSign1 bytes signed by the RemoteSigner.

The size of returned Vec must match the value returned by reserve_size. This data will be embedded in the JUMBF c2pa.signature box of the manifest. data are the bytes of the claim to be remotely signed.

fn reserve_size(&self) -> usize

Returns the size in bytes of the largest possible expected signature.

Signing will fail if the result of the sign function is larger than this value.

Implementors