use secp256k1;
use crypto::digest::Digest;
-use crypto::sha2::Sha256;
use crypto::ripemd160::Ripemd160;
+use util::sha2::Sha256;
+
// Various functions for key derivation and transaction creation for use within channels. Primarily
// used in Channel and ChannelMonitor.
sha.result(&mut res);
let mut key = base_secret.clone();
- try!(key.add_assign(&secp_ctx, &try!(SecretKey::from_slice(&secp_ctx, &res))));
+ key.add_assign(&secp_ctx, &SecretKey::from_slice(&secp_ctx, &res)?)?;
Ok(key)
}
let mut res = [0; 32];
sha.result(&mut res);
- let hashkey = PublicKey::from_secret_key(&secp_ctx, &try!(SecretKey::from_slice(&secp_ctx, &res))).unwrap();
+ let hashkey = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&secp_ctx, &res)?).unwrap();
base_point.combine(&secp_ctx, &hashkey)
}
let mut res = [0; 32];
sha.result(&mut res);
- try!(SecretKey::from_slice(&secp_ctx, &res))
+ SecretKey::from_slice(&secp_ctx, &res)?
};
let commit_append_rev_hash_key = {
let mut sha = Sha256::new();
let mut res = [0; 32];
sha.result(&mut res);
- try!(SecretKey::from_slice(&secp_ctx, &res))
+ SecretKey::from_slice(&secp_ctx, &res)?
};
let mut part_a = revocation_base_secret.clone();
- try!(part_a.mul_assign(&secp_ctx, &rev_append_commit_hash_key));
+ part_a.mul_assign(&secp_ctx, &rev_append_commit_hash_key)?;
let mut part_b = per_commitment_secret.clone();
- try!(part_b.mul_assign(&secp_ctx, &commit_append_rev_hash_key));
- try!(part_a.add_assign(&secp_ctx, &part_b));
+ part_b.mul_assign(&secp_ctx, &commit_append_rev_hash_key)?;
+ part_a.add_assign(&secp_ctx, &part_b)?;
Ok(part_a)
}
let mut res = [0; 32];
sha.result(&mut res);
- try!(SecretKey::from_slice(&secp_ctx, &res))
+ SecretKey::from_slice(&secp_ctx, &res)?
};
let commit_append_rev_hash_key = {
let mut sha = Sha256::new();
let mut res = [0; 32];
sha.result(&mut res);
- try!(SecretKey::from_slice(&secp_ctx, &res))
+ SecretKey::from_slice(&secp_ctx, &res)?
};
let mut part_a = revocation_base_point.clone();
- try!(part_a.mul_assign(&secp_ctx, &rev_append_commit_hash_key));
+ part_a.mul_assign(&secp_ctx, &rev_append_commit_hash_key)?;
let mut part_b = per_commitment_point.clone();
- try!(part_b.mul_assign(&secp_ctx, &commit_append_rev_hash_key));
+ part_b.mul_assign(&secp_ctx, &commit_append_rev_hash_key)?;
part_a.combine(&secp_ctx, &part_b)
}
pub fn new(secp_ctx: &Secp256k1, per_commitment_point: &PublicKey, a_delayed_payment_base: &PublicKey, a_htlc_base: &PublicKey, b_revocation_base: &PublicKey, b_payment_base: &PublicKey, b_htlc_base: &PublicKey) -> Result<TxCreationKeys, secp256k1::Error> {
Ok(TxCreationKeys {
per_commitment_point: per_commitment_point.clone(),
- revocation_key: try!(derive_public_revocation_key(&secp_ctx, &per_commitment_point, &b_revocation_base)),
- a_htlc_key: try!(derive_public_key(&secp_ctx, &per_commitment_point, &a_htlc_base)),
- b_htlc_key: try!(derive_public_key(&secp_ctx, &per_commitment_point, &b_htlc_base)),
- a_delayed_payment_key: try!(derive_public_key(&secp_ctx, &per_commitment_point, &a_delayed_payment_base)),
- b_payment_key: try!(derive_public_key(&secp_ctx, &per_commitment_point, &b_payment_base)),
+ revocation_key: derive_public_revocation_key(&secp_ctx, &per_commitment_point, &b_revocation_base)?,
+ a_htlc_key: derive_public_key(&secp_ctx, &per_commitment_point, &a_htlc_base)?,
+ b_htlc_key: derive_public_key(&secp_ctx, &per_commitment_point, &b_htlc_base)?,
+ a_delayed_payment_key: derive_public_key(&secp_ctx, &per_commitment_point, &a_delayed_payment_base)?,
+ b_payment_key: derive_public_key(&secp_ctx, &per_commitment_point, &b_payment_base)?,
})
}
}
/// note here that 'a_revocation_key' is generated using b_revocation_basepoint and a's
/// commitment secret. 'htlc' does *not* need to have its previous_output_index filled.
#[inline]
-pub fn get_htlc_redeemscript(htlc: &HTLCOutputInCommitment, keys: &TxCreationKeys, offered: bool) -> Script {
- get_htlc_redeemscript_with_explicit_keys(htlc, &keys.a_htlc_key, &keys.b_htlc_key, &keys.revocation_key, offered)
+pub fn get_htlc_redeemscript(htlc: &HTLCOutputInCommitment, keys: &TxCreationKeys) -> Script {
+ get_htlc_redeemscript_with_explicit_keys(htlc, &keys.a_htlc_key, &keys.b_htlc_key, &keys.revocation_key, htlc.offered)
}