pub(crate) mod utils;
-use bitcoin::hashes::{Hash, HashEngine};
-use bitcoin::hashes::sha256::Hash as Sha256;
-use bitcoin::secp256k1::{self, PublicKey, Scalar, Secp256k1, SecretKey};
+use bitcoin::secp256k1::{self, PublicKey, Secp256k1, SecretKey};
use crate::sign::{EntropySource, NodeSigner, Recipient};
use crate::onion_message::ControlTlvs;
let mut new_blinding_point = match next_blinding_override {
Some(blinding_point) => blinding_point,
None => {
- let blinding_factor = {
- let mut sha = Sha256::engine();
- sha.input(&self.blinding_point.serialize()[..]);
- sha.input(control_tlvs_ss.as_ref());
- Sha256::from_engine(sha).into_inner()
- };
- self.blinding_point.mul_tweak(secp_ctx, &Scalar::from_be_bytes(blinding_factor).unwrap())
- .map_err(|_| ())?
+ onion_utils::next_hop_pubkey(secp_ctx, self.blinding_point,
+ control_tlvs_ss.as_ref()).map_err(|_| ())?
}
};
mem::swap(&mut self.blinding_point, &mut new_blinding_point);