Function coset::sig_structure_data

pub fn sig_structure_data(
    context: SignatureContext,
    body: ProtectedHeader,
    sign: Option<ProtectedHeader>,
    aad: &[u8],
    payload: &[u8]
) -> Vec<u8>

Create a binary blob that will be signed.

  Sig_structure = [
      context : "Signature" / "Signature1" / "CounterSignature",
      body_protected : empty_or_serialized_map,
      ? sign_protected : empty_or_serialized_map,
      external_aad : bstr,
      payload : bstr
  ]