- let child_ix = self.session_child_index.fetch_add(1, Ordering::AcqRel);
- let child_privkey = self.session_master_key.ckd_priv(&self.secp_ctx, ChildNumber::from_hardened_idx(child_ix as u32).expect("key space exhausted")).expect("Your RNG is busted");
- sha.input(&child_privkey.private_key.key[..]);
-
- let mut rng_seed = sha.clone();
- // Not exactly the most ideal construction, but the second value will get fed into
- // ChaCha so it is another step harder to break.
- rng_seed.input(b"RNG Seed Salt");
- sha.input(b"Session Key Salt");
- (SecretKey::from_slice(&Sha256::from_engine(sha).into_inner()).expect("Your RNG is busted"),
- Sha256::from_engine(rng_seed).into_inner())
- }
-
- fn get_channel_id(&self) -> [u8; 32] {
- let mut sha = self.derive_unique_start();
-
- let child_ix = self.channel_id_child_index.fetch_add(1, Ordering::AcqRel);
- let child_privkey = self.channel_id_master_key.ckd_priv(&self.secp_ctx, ChildNumber::from_hardened_idx(child_ix as u32).expect("key space exhausted")).expect("Your RNG is busted");
+ let child_ix = self.rand_bytes_child_index.fetch_add(1, Ordering::AcqRel);
+ let child_privkey = self.rand_bytes_master_key.ckd_priv(&self.secp_ctx, ChildNumber::from_hardened_idx(child_ix as u32).expect("key space exhausted")).expect("Your RNG is busted");