1 use ln::msgs::HandleError;
4 use bitcoin_hashes::{Hash, HashEngine, Hmac, HmacEngine};
5 use bitcoin_hashes::sha256::Hash as Sha256;
7 use secp256k1::Secp256k1;
8 use secp256k1::key::{PublicKey,SecretKey};
9 use secp256k1::ecdh::SharedSecret;
12 use util::chacha20poly1305rfc::ChaCha20Poly1305RFC;
13 use util::{byte_utils,rng};
15 // Sha256("Noise_XK_secp256k1_ChaChaPoly_SHA256")
16 const NOISE_CK: [u8; 32] = [0x26, 0x40, 0xf5, 0x2e, 0xeb, 0xcd, 0x9e, 0x88, 0x29, 0x58, 0x95, 0x1c, 0x79, 0x42, 0x50, 0xee, 0xdb, 0x28, 0x00, 0x2c, 0x05, 0xd7, 0xdc, 0x2e, 0xa0, 0xf1, 0x95, 0x40, 0x60, 0x42, 0xca, 0xf1];
17 // Sha256(NOISE_CK || "lightning")
18 const NOISE_H: [u8; 32] = [0xd1, 0xfb, 0xf6, 0xde, 0xe4, 0xf6, 0x86, 0xf1, 0x32, 0xfd, 0x70, 0x2c, 0x4a, 0xbf, 0x8f, 0xba, 0x4b, 0xb4, 0x20, 0xd8, 0x9d, 0x2a, 0x04, 0x8a, 0x3c, 0x4f, 0x4c, 0x09, 0x2e, 0x37, 0xb6, 0x76];
20 pub enum NextNoiseStep {
32 // When done swap noise_state for NoiseState::Finished
35 struct BidirectionalNoiseState {
39 enum DirectionalNoiseState {
44 ie: Option<PublicKey>, // filled in if state >= PostActOne
45 re: Option<SecretKey>, // filled in if state >= PostActTwo
46 temp_k2: Option<[u8; 32]>, // filled in if state >= PostActTwo
52 directional_state: DirectionalNoiseState,
53 bidirectional_state: BidirectionalNoiseState,
65 pub struct PeerChannelEncryptor {
66 secp_ctx: Secp256k1<secp256k1::SignOnly>,
67 their_node_id: Option<PublicKey>, // filled in for outbound, or inbound after noise_state is Finished
69 noise_state: NoiseState,
72 impl PeerChannelEncryptor {
73 pub fn new_outbound(their_node_id: PublicKey) -> PeerChannelEncryptor {
74 let mut key = [0u8; 32];
75 rng::fill_bytes(&mut key);
77 let secp_ctx = Secp256k1::signing_only();
78 let sec_key = SecretKey::from_slice(&secp_ctx, &key).unwrap(); //TODO: nicer rng-is-bad error message
80 let mut sha = Sha256::engine();
82 sha.input(&their_node_id.serialize()[..]);
83 let h = Sha256::from_engine(sha).into_inner();
85 PeerChannelEncryptor {
86 their_node_id: Some(their_node_id),
88 noise_state: NoiseState::InProgress {
89 state: NoiseStep::PreActOne,
90 directional_state: DirectionalNoiseState::Outbound {
93 bidirectional_state: BidirectionalNoiseState {
101 pub fn new_inbound(our_node_secret: &SecretKey) -> PeerChannelEncryptor {
102 let secp_ctx = Secp256k1::signing_only();
104 let mut sha = Sha256::engine();
106 let our_node_id = PublicKey::from_secret_key(&secp_ctx, our_node_secret);
107 sha.input(&our_node_id.serialize()[..]);
108 let h = Sha256::from_engine(sha).into_inner();
110 PeerChannelEncryptor {
113 noise_state: NoiseState::InProgress {
114 state: NoiseStep::PreActOne,
115 directional_state: DirectionalNoiseState::Inbound {
120 bidirectional_state: BidirectionalNoiseState {
129 fn encrypt_with_ad(res: &mut[u8], n: u64, key: &[u8; 32], h: &[u8], plaintext: &[u8]) {
130 let mut nonce = [0; 12];
131 nonce[4..].copy_from_slice(&byte_utils::le64_to_array(n));
133 let mut chacha = ChaCha20Poly1305RFC::new(key, &nonce, h);
134 let mut tag = [0; 16];
135 chacha.encrypt(plaintext, &mut res[0..plaintext.len()], &mut tag);
136 res[plaintext.len()..].copy_from_slice(&tag);
140 fn decrypt_with_ad(res: &mut[u8], n: u64, key: &[u8; 32], h: &[u8], cyphertext: &[u8]) -> Result<(), HandleError> {
141 let mut nonce = [0; 12];
142 nonce[4..].copy_from_slice(&byte_utils::le64_to_array(n));
144 let mut chacha = ChaCha20Poly1305RFC::new(key, &nonce, h);
145 if !chacha.decrypt(&cyphertext[0..cyphertext.len() - 16], res, &cyphertext[cyphertext.len() - 16..]) {
146 return Err(HandleError{err: "Bad MAC", action: Some(msgs::ErrorAction::DisconnectPeer{ msg: None })});
151 fn hkdf_extract_expand(salt: &[u8], ikm: &[u8]) -> ([u8; 32], [u8; 32]) {
152 let mut hmac = HmacEngine::<Sha256>::new(salt);
154 let prk = Hmac::from_engine(hmac).into_inner();
155 let mut hmac = HmacEngine::<Sha256>::new(&prk[..]);
157 let t1 = Hmac::from_engine(hmac).into_inner();
158 let mut hmac = HmacEngine::<Sha256>::new(&prk[..]);
161 (t1, Hmac::from_engine(hmac).into_inner())
165 fn hkdf(state: &mut BidirectionalNoiseState, ss: SharedSecret) -> [u8; 32] {
166 let (t1, t2) = Self::hkdf_extract_expand(&state.ck, &ss[..]);
172 fn outbound_noise_act<T: secp256k1::Signing>(secp_ctx: &Secp256k1<T>, state: &mut BidirectionalNoiseState, our_key: &SecretKey, their_key: &PublicKey) -> ([u8; 50], [u8; 32]) {
173 let our_pub = PublicKey::from_secret_key(secp_ctx, &our_key);
175 let mut sha = Sha256::engine();
177 sha.input(&our_pub.serialize()[..]);
178 state.h = Sha256::from_engine(sha).into_inner();
180 let ss = SharedSecret::new(secp_ctx, &their_key, &our_key);
181 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
183 let mut res = [0; 50];
184 res[1..34].copy_from_slice(&our_pub.serialize()[..]);
185 PeerChannelEncryptor::encrypt_with_ad(&mut res[34..], 0, &temp_k, &state.h, &[0; 0]);
187 let mut sha = Sha256::engine();
189 sha.input(&res[34..]);
190 state.h = Sha256::from_engine(sha).into_inner();
196 fn inbound_noise_act<T>(secp_ctx: &Secp256k1<T>, state: &mut BidirectionalNoiseState, act: &[u8], our_key: &SecretKey) -> Result<(PublicKey, [u8; 32]), HandleError> {
197 assert_eq!(act.len(), 50);
200 return Err(HandleError{err: "Unknown handshake version number", action: Some(msgs::ErrorAction::DisconnectPeer{ msg: None })});
203 let their_pub = match PublicKey::from_slice(secp_ctx, &act[1..34]) {
204 Err(_) => return Err(HandleError{err: "Invalid public key", action: Some(msgs::ErrorAction::DisconnectPeer{ msg: None })}),
208 let mut sha = Sha256::engine();
210 sha.input(&their_pub.serialize()[..]);
211 state.h = Sha256::from_engine(sha).into_inner();
213 let ss = SharedSecret::new(secp_ctx, &their_pub, &our_key);
214 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
216 let mut dec = [0; 0];
217 PeerChannelEncryptor::decrypt_with_ad(&mut dec, 0, &temp_k, &state.h, &act[34..])?;
219 let mut sha = Sha256::engine();
221 sha.input(&act[34..]);
222 state.h = Sha256::from_engine(sha).into_inner();
224 Ok((their_pub, temp_k))
227 pub fn get_act_one(&mut self) -> [u8; 50] {
228 match self.noise_state {
229 NoiseState::InProgress { ref mut state, ref directional_state, ref mut bidirectional_state } =>
230 match directional_state {
231 &DirectionalNoiseState::Outbound { ref ie } => {
232 if *state != NoiseStep::PreActOne {
233 panic!("Requested act at wrong step");
236 let (res, _) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &ie, &self.their_node_id.unwrap());
237 *state = NoiseStep::PostActOne;
240 _ => panic!("Wrong direction for act"),
242 _ => panic!("Cannot get act one after noise handshake completes"),
246 // Separated for testing:
247 fn process_act_one_with_ephemeral_key(&mut self, act_one: &[u8], our_node_secret: &SecretKey, our_ephemeral: SecretKey) -> Result<[u8; 50], HandleError> {
248 assert_eq!(act_one.len(), 50);
250 match self.noise_state {
251 NoiseState::InProgress { ref mut state, ref mut directional_state, ref mut bidirectional_state } =>
252 match directional_state {
253 &mut DirectionalNoiseState::Inbound { ref mut ie, ref mut re, ref mut temp_k2 } => {
254 if *state != NoiseStep::PreActOne {
255 panic!("Requested act at wrong step");
258 let (their_pub, _) = PeerChannelEncryptor::inbound_noise_act(&self.secp_ctx, bidirectional_state, act_one, &our_node_secret)?;
259 ie.get_or_insert(their_pub);
261 re.get_or_insert(our_ephemeral);
263 let (res, temp_k) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &re.unwrap(), &ie.unwrap());
264 *temp_k2 = Some(temp_k);
265 *state = NoiseStep::PostActTwo;
268 _ => panic!("Wrong direction for act"),
270 _ => panic!("Cannot get act one after noise handshake completes"),
274 pub fn process_act_one_with_key(&mut self, act_one: &[u8], our_node_secret: &SecretKey) -> Result<[u8; 50], HandleError> {
275 assert_eq!(act_one.len(), 50);
277 let mut key = [0u8; 32];
278 rng::fill_bytes(&mut key);
279 let our_ephemeral_key = SecretKey::from_slice(&self.secp_ctx, &key).unwrap(); //TODO: nicer rng-is-bad error message
280 self.process_act_one_with_ephemeral_key(act_one, our_node_secret, our_ephemeral_key)
283 pub fn process_act_two(&mut self, act_two: &[u8], our_node_secret: &SecretKey) -> Result<([u8; 66], PublicKey), HandleError> {
284 assert_eq!(act_two.len(), 50);
288 let res: [u8; 66] = match self.noise_state {
289 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
290 match directional_state {
291 &DirectionalNoiseState::Outbound { ref ie } => {
292 if *state != NoiseStep::PostActOne {
293 panic!("Requested act at wrong step");
296 let (re, temp_k2) = PeerChannelEncryptor::inbound_noise_act(&self.secp_ctx, bidirectional_state, act_two, &ie)?;
298 let mut res = [0; 66];
299 let our_node_id = PublicKey::from_secret_key(&self.secp_ctx, &our_node_secret);
301 PeerChannelEncryptor::encrypt_with_ad(&mut res[1..50], 1, &temp_k2, &bidirectional_state.h, &our_node_id.serialize()[..]);
303 let mut sha = Sha256::engine();
304 sha.input(&bidirectional_state.h);
305 sha.input(&res[1..50]);
306 bidirectional_state.h = Sha256::from_engine(sha).into_inner();
308 let ss = SharedSecret::new(&self.secp_ctx, &re, our_node_secret);
309 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
311 PeerChannelEncryptor::encrypt_with_ad(&mut res[50..], 0, &temp_k, &bidirectional_state.h, &[0; 0]);
312 final_hkdf = Self::hkdf_extract_expand(&bidirectional_state.ck, &[0; 0]);
313 ck = bidirectional_state.ck.clone();
316 _ => panic!("Wrong direction for act"),
318 _ => panic!("Cannot get act one after noise handshake completes"),
321 let (sk, rk) = final_hkdf;
322 self.noise_state = NoiseState::Finished {
331 Ok((res, self.their_node_id.unwrap().clone()))
334 pub fn process_act_three(&mut self, act_three: &[u8]) -> Result<PublicKey, HandleError> {
335 assert_eq!(act_three.len(), 66);
339 match self.noise_state {
340 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
341 match directional_state {
342 &DirectionalNoiseState::Inbound { ie: _, ref re, ref temp_k2 } => {
343 if *state != NoiseStep::PostActTwo {
344 panic!("Requested act at wrong step");
346 if act_three[0] != 0 {
347 return Err(HandleError{err: "Unknown handshake version number", action: Some(msgs::ErrorAction::DisconnectPeer{ msg: None })});
350 let mut their_node_id = [0; 33];
351 PeerChannelEncryptor::decrypt_with_ad(&mut their_node_id, 1, &temp_k2.unwrap(), &bidirectional_state.h, &act_three[1..50])?;
352 self.their_node_id = Some(match PublicKey::from_slice(&self.secp_ctx, &their_node_id) {
354 Err(_) => return Err(HandleError{err: "Bad node_id from peer", action: Some(msgs::ErrorAction::DisconnectPeer{ msg: None })}),
357 let mut sha = Sha256::engine();
358 sha.input(&bidirectional_state.h);
359 sha.input(&act_three[1..50]);
360 bidirectional_state.h = Sha256::from_engine(sha).into_inner();
362 let ss = SharedSecret::new(&self.secp_ctx, &self.their_node_id.unwrap(), &re.unwrap());
363 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
365 PeerChannelEncryptor::decrypt_with_ad(&mut [0; 0], 0, &temp_k, &bidirectional_state.h, &act_three[50..])?;
366 final_hkdf = Self::hkdf_extract_expand(&bidirectional_state.ck, &[0; 0]);
367 ck = bidirectional_state.ck.clone();
369 _ => panic!("Wrong direction for act"),
371 _ => panic!("Cannot get act one after noise handshake completes"),
374 let (rk, sk) = final_hkdf;
375 self.noise_state = NoiseState::Finished {
384 Ok(self.their_node_id.unwrap().clone())
387 /// Encrypts the given message, returning the encrypted version
388 /// panics if msg.len() > 65535 or Noise handshake has not finished.
389 pub fn encrypt_message(&mut self, msg: &[u8]) -> Vec<u8> {
390 if msg.len() > 65535 {
391 panic!("Attempted to encrypt message longer than 65535 bytes!");
394 let mut res = Vec::with_capacity(msg.len() + 16*2 + 2);
395 res.resize(msg.len() + 16*2 + 2, 0);
397 match self.noise_state {
398 NoiseState::Finished { ref mut sk, ref mut sn, ref mut sck, rk: _, rn: _, rck: _ } => {
400 let (new_sck, new_sk) = Self::hkdf_extract_expand(sck, sk);
406 Self::encrypt_with_ad(&mut res[0..16+2], *sn, sk, &[0; 0], &byte_utils::be16_to_array(msg.len() as u16));
409 Self::encrypt_with_ad(&mut res[16+2..], *sn, sk, &[0; 0], msg);
412 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
418 /// Decrypts a message length header from the remote peer.
419 /// panics if noise handshake has not yet finished or msg.len() != 18
420 pub fn decrypt_length_header(&mut self, msg: &[u8]) -> Result<u16, HandleError> {
421 assert_eq!(msg.len(), 16+2);
423 match self.noise_state {
424 NoiseState::Finished { sk: _, sn: _, sck: _, ref mut rk, ref mut rn, ref mut rck } => {
426 let (new_rck, new_rk) = Self::hkdf_extract_expand(rck, rk);
432 let mut res = [0; 2];
433 Self::decrypt_with_ad(&mut res, *rn, rk, &[0; 0], msg)?;
435 Ok(byte_utils::slice_to_be16(&res))
437 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
441 /// Decrypts the given message.
442 /// panics if msg.len() > 65535 + 16
443 pub fn decrypt_message(&mut self, msg: &[u8]) -> Result<Vec<u8>, HandleError> {
444 if msg.len() > 65535 + 16 {
445 panic!("Attempted to encrypt message longer than 65535 bytes!");
448 match self.noise_state {
449 NoiseState::Finished { sk: _, sn: _, sck: _, ref rk, ref mut rn, rck: _ } => {
450 let mut res = Vec::with_capacity(msg.len() - 16);
451 res.resize(msg.len() - 16, 0);
452 Self::decrypt_with_ad(&mut res[..], *rn, rk, &[0; 0], msg)?;
457 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
461 pub fn get_noise_step(&self) -> NextNoiseStep {
462 match self.noise_state {
463 NoiseState::InProgress {ref state, ..} => {
465 &NoiseStep::PreActOne => NextNoiseStep::ActOne,
466 &NoiseStep::PostActOne => NextNoiseStep::ActTwo,
467 &NoiseStep::PostActTwo => NextNoiseStep::ActThree,
470 NoiseState::Finished {..} => NextNoiseStep::NoiseComplete,
474 pub fn is_ready_for_encryption(&self) -> bool {
475 match self.noise_state {
476 NoiseState::InProgress {..} => { false },
477 NoiseState::Finished {..} => { true }
484 use secp256k1::Secp256k1;
485 use secp256k1::key::{PublicKey,SecretKey};
489 use ln::peer_channel_encryptor::{PeerChannelEncryptor,NoiseState,DirectionalNoiseState};
491 fn get_outbound_peer_for_initiator_test_vectors() -> PeerChannelEncryptor {
492 let secp_ctx = Secp256k1::new();
493 let their_node_id = PublicKey::from_slice(&secp_ctx, &hex::decode("028d7500dd4c12685d1f568b4c2b5048e8534b873319f3a8daa612b469132ec7f7").unwrap()[..]).unwrap();
495 let mut outbound_peer = PeerChannelEncryptor::new_outbound(their_node_id);
496 match outbound_peer.noise_state {
497 NoiseState::InProgress { state: _, ref mut directional_state, bidirectional_state: _ } => {
498 *directional_state = DirectionalNoiseState::Outbound { // overwrite ie...
499 ie: SecretKey::from_slice(&secp_ctx, &hex::decode("1212121212121212121212121212121212121212121212121212121212121212").unwrap()[..]).unwrap(),
505 assert_eq!(outbound_peer.get_act_one()[..], hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap()[..]);
510 fn noise_initiator_test_vectors() {
511 let secp_ctx = Secp256k1::new();
512 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
515 // transport-initiator successful handshake
516 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
518 let act_two = hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
519 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap().0[..], hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
521 match outbound_peer.noise_state {
522 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
523 assert_eq!(sk, hex::decode("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
525 assert_eq!(sck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
526 assert_eq!(rk, hex::decode("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
528 assert_eq!(rck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
534 // transport-initiator act2 short read test
535 // Can't actually test this cause process_act_two requires you pass the right length!
538 // transport-initiator act2 bad version test
539 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
541 let act_two = hex::decode("0102466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
542 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
546 // transport-initiator act2 bad key serialization test
547 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
549 let act_two = hex::decode("0004466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
550 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
554 // transport-initiator act2 bad MAC test
555 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
557 let act_two = hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730af").unwrap().to_vec();
558 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
563 fn noise_responder_test_vectors() {
564 let secp_ctx = Secp256k1::new();
565 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex::decode("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
566 let our_ephemeral = SecretKey::from_slice(&secp_ctx, &hex::decode("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
569 // transport-responder successful handshake
570 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
572 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
573 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
575 let act_three = hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
576 // test vector doesn't specify the initiator static key, but its the same as the one
577 // from trasport-initiator successful handshake
578 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex::decode("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
580 match inbound_peer.noise_state {
581 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
582 assert_eq!(sk, hex::decode("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
584 assert_eq!(sck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
585 assert_eq!(rk, hex::decode("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
587 assert_eq!(rck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
593 // transport-responder act1 short read test
594 // Can't actually test this cause process_act_one requires you pass the right length!
597 // transport-responder act1 bad version test
598 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
600 let act_one = hex::decode("01036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
601 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
604 // transport-responder act1 bad key serialization test
605 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
607 let act_one =hex::decode("00046360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
608 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
611 // transport-responder act1 bad MAC test
612 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
614 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6b").unwrap().to_vec();
615 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
618 // transport-responder act3 bad version test
619 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
621 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
622 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
624 let act_three = hex::decode("01b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
625 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
628 // transport-responder act3 short read test
629 // Can't actually test this cause process_act_three requires you pass the right length!
632 // transport-responder act3 bad MAC for ciphertext test
633 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
635 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
636 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
638 let act_three = hex::decode("00c9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
639 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
642 // transport-responder act3 bad rs test
643 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
645 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
646 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
648 let act_three = hex::decode("00bfe3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa2235536ad09a8ee351870c2bb7f78b754a26c6cef79a98d25139c856d7efd252c2ae73c").unwrap().to_vec();
649 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
652 // transport-responder act3 bad MAC test
653 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
655 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
656 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
658 let act_three = hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139bb").unwrap().to_vec();
659 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
665 fn message_encryption_decryption_test_vectors() {
666 let secp_ctx = Secp256k1::new();
668 // We use the same keys as the initiator and responder test vectors, so we copy those tests
669 // here and use them to encrypt.
670 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
673 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
675 let act_two = hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
676 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap().0[..], hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
678 match outbound_peer.noise_state {
679 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
680 assert_eq!(sk, hex::decode("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
682 assert_eq!(sck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
683 assert_eq!(rk, hex::decode("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
685 assert_eq!(rck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
691 let mut inbound_peer;
694 // transport-responder successful handshake
695 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex::decode("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
696 let our_ephemeral = SecretKey::from_slice(&secp_ctx, &hex::decode("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
698 inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
700 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
701 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
703 let act_three = hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
704 // test vector doesn't specify the initiator static key, but its the same as the one
705 // from trasport-initiator successful handshake
706 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex::decode("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
708 match inbound_peer.noise_state {
709 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
710 assert_eq!(sk, hex::decode("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
712 assert_eq!(sck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
713 assert_eq!(rk, hex::decode("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
715 assert_eq!(rck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
722 let msg = [0x68, 0x65, 0x6c, 0x6c, 0x6f];
723 let res = outbound_peer.encrypt_message(&msg);
724 assert_eq!(res.len(), 5 + 2*16 + 2);
726 let len_header = res[0..2+16].to_vec();
727 assert_eq!(inbound_peer.decrypt_length_header(&len_header[..]).unwrap() as usize, msg.len());
728 assert_eq!(inbound_peer.decrypt_message(&res[2+16..]).unwrap()[..], msg[..]);
731 assert_eq!(res, hex::decode("cf2b30ddf0cf3f80e7c35a6e6730b59fe802473180f396d88a8fb0db8cbcf25d2f214cf9ea1d95").unwrap());
733 assert_eq!(res, hex::decode("72887022101f0b6753e0c7de21657d35a4cb2a1f5cde2650528bbc8f837d0f0d7ad833b1a256a1").unwrap());
735 assert_eq!(res, hex::decode("178cb9d7387190fa34db9c2d50027d21793c9bc2d40b1e14dcf30ebeeeb220f48364f7a4c68bf8").unwrap());
737 assert_eq!(res, hex::decode("1b186c57d44eb6de4c057c49940d79bb838a145cb528d6e8fd26dbe50a60ca2c104b56b60e45bd").unwrap());
738 } else if i == 1000 {
739 assert_eq!(res, hex::decode("4a2f3cc3b5e78ddb83dcb426d9863d9d9a723b0337c89dd0b005d89f8d3c05c52b76b29b740f09").unwrap());
740 } else if i == 1001 {
741 assert_eq!(res, hex::decode("2ecd8c8a5629d0d02ab457a0fdd0f7b90a192cd46be5ecb6ca570bfc5e268338b1a16cf4ef2d36").unwrap());