}
pub(crate) fn recipient_sign<T: AsRef<TaggedHash>>(message: &T) -> Result<Signature, ()> {
let secp_ctx = Secp256k1::new();
}
pub(crate) fn recipient_sign<T: AsRef<TaggedHash>>(message: &T) -> Result<Signature, ()> {
let secp_ctx = Secp256k1::new();