Struct Challenge 

pub struct Challenge<'a, P: SignatureProvider<'a>> {
    pub message: &'a SignedData<'a>,
    pub parent: &'a Reader<'a>,
    pub provider: &'a P,
    pub requests: OwnedVec<ResolvedSigner<'a, P>>,
}

Original resolved requests, without inventing an independent dispatcher.

Fields

message: &'a SignedData<'a>

Original carried SignedData model belonging to the selected Content.

parent: &'a Reader<'a>

Actual producing/current source reader.

provider: &'a P

The one selected signature/digest provider.

requests: OwnedVec<ResolvedSigner<'a, P>>

Existing common resolver’s requests, moved without state cloning.