1 use ln::msgs::LightningError;
3 use ln::wire::LN_MAX_MSG_LEN;
5 use bitcoin::hashes::{Hash, HashEngine, Hmac, HmacEngine};
6 use bitcoin::hashes::sha256::Hash as Sha256;
8 use bitcoin::secp256k1::Secp256k1;
9 use bitcoin::secp256k1::key::{PublicKey,SecretKey};
10 use bitcoin::secp256k1::ecdh::SharedSecret;
11 use bitcoin::secp256k1;
13 use util::chacha20poly1305rfc::ChaCha20Poly1305RFC;
16 // Sha256("Noise_XK_secp256k1_ChaChaPoly_SHA256")
17 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];
18 // Sha256(NOISE_CK || "lightning")
19 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];
21 pub enum NextNoiseStep {
33 // When done swap noise_state for NoiseState::Finished
36 struct BidirectionalNoiseState {
40 enum DirectionalNoiseState {
45 ie: Option<PublicKey>, // filled in if state >= PostActOne
46 re: Option<SecretKey>, // filled in if state >= PostActTwo
47 temp_k2: Option<[u8; 32]>, // filled in if state >= PostActTwo
53 directional_state: DirectionalNoiseState,
54 bidirectional_state: BidirectionalNoiseState,
66 pub struct PeerChannelEncryptor {
67 secp_ctx: Secp256k1<secp256k1::SignOnly>,
68 their_node_id: Option<PublicKey>, // filled in for outbound, or inbound after noise_state is Finished
70 noise_state: NoiseState,
73 impl PeerChannelEncryptor {
74 pub fn new_outbound(their_node_id: PublicKey, ephemeral_key: SecretKey) -> PeerChannelEncryptor {
75 let secp_ctx = Secp256k1::signing_only();
77 let mut sha = Sha256::engine();
79 sha.input(&their_node_id.serialize()[..]);
80 let h = Sha256::from_engine(sha).into_inner();
82 PeerChannelEncryptor {
83 their_node_id: Some(their_node_id),
85 noise_state: NoiseState::InProgress {
86 state: NoiseStep::PreActOne,
87 directional_state: DirectionalNoiseState::Outbound {
90 bidirectional_state: BidirectionalNoiseState {
98 pub fn new_inbound(our_node_secret: &SecretKey) -> PeerChannelEncryptor {
99 let secp_ctx = Secp256k1::signing_only();
101 let mut sha = Sha256::engine();
103 let our_node_id = PublicKey::from_secret_key(&secp_ctx, our_node_secret);
104 sha.input(&our_node_id.serialize()[..]);
105 let h = Sha256::from_engine(sha).into_inner();
107 PeerChannelEncryptor {
110 noise_state: NoiseState::InProgress {
111 state: NoiseStep::PreActOne,
112 directional_state: DirectionalNoiseState::Inbound {
117 bidirectional_state: BidirectionalNoiseState {
126 fn encrypt_with_ad(res: &mut[u8], n: u64, key: &[u8; 32], h: &[u8], plaintext: &[u8]) {
127 let mut nonce = [0; 12];
128 nonce[4..].copy_from_slice(&byte_utils::le64_to_array(n));
130 let mut chacha = ChaCha20Poly1305RFC::new(key, &nonce, h);
131 let mut tag = [0; 16];
132 chacha.encrypt(plaintext, &mut res[0..plaintext.len()], &mut tag);
133 res[plaintext.len()..].copy_from_slice(&tag);
137 fn decrypt_with_ad(res: &mut[u8], n: u64, key: &[u8; 32], h: &[u8], cyphertext: &[u8]) -> Result<(), LightningError> {
138 let mut nonce = [0; 12];
139 nonce[4..].copy_from_slice(&byte_utils::le64_to_array(n));
141 let mut chacha = ChaCha20Poly1305RFC::new(key, &nonce, h);
142 if !chacha.decrypt(&cyphertext[0..cyphertext.len() - 16], res, &cyphertext[cyphertext.len() - 16..]) {
143 return Err(LightningError{err: "Bad MAC", action: msgs::ErrorAction::DisconnectPeer{ msg: None }});
148 fn hkdf_extract_expand(salt: &[u8], ikm: &[u8]) -> ([u8; 32], [u8; 32]) {
149 let mut hmac = HmacEngine::<Sha256>::new(salt);
151 let prk = Hmac::from_engine(hmac).into_inner();
152 let mut hmac = HmacEngine::<Sha256>::new(&prk[..]);
154 let t1 = Hmac::from_engine(hmac).into_inner();
155 let mut hmac = HmacEngine::<Sha256>::new(&prk[..]);
158 (t1, Hmac::from_engine(hmac).into_inner())
162 fn hkdf(state: &mut BidirectionalNoiseState, ss: SharedSecret) -> [u8; 32] {
163 let (t1, t2) = Self::hkdf_extract_expand(&state.ck, &ss[..]);
169 fn outbound_noise_act<T: secp256k1::Signing>(secp_ctx: &Secp256k1<T>, state: &mut BidirectionalNoiseState, our_key: &SecretKey, their_key: &PublicKey) -> ([u8; 50], [u8; 32]) {
170 let our_pub = PublicKey::from_secret_key(secp_ctx, &our_key);
172 let mut sha = Sha256::engine();
174 sha.input(&our_pub.serialize()[..]);
175 state.h = Sha256::from_engine(sha).into_inner();
177 let ss = SharedSecret::new(&their_key, &our_key);
178 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
180 let mut res = [0; 50];
181 res[1..34].copy_from_slice(&our_pub.serialize()[..]);
182 PeerChannelEncryptor::encrypt_with_ad(&mut res[34..], 0, &temp_k, &state.h, &[0; 0]);
184 let mut sha = Sha256::engine();
186 sha.input(&res[34..]);
187 state.h = Sha256::from_engine(sha).into_inner();
193 fn inbound_noise_act(state: &mut BidirectionalNoiseState, act: &[u8], our_key: &SecretKey) -> Result<(PublicKey, [u8; 32]), LightningError> {
194 assert_eq!(act.len(), 50);
197 return Err(LightningError{err: "Unknown handshake version number", action: msgs::ErrorAction::DisconnectPeer{ msg: None }});
200 let their_pub = match PublicKey::from_slice(&act[1..34]) {
201 Err(_) => return Err(LightningError{err: "Invalid public key", action: msgs::ErrorAction::DisconnectPeer{ msg: None }}),
205 let mut sha = Sha256::engine();
207 sha.input(&their_pub.serialize()[..]);
208 state.h = Sha256::from_engine(sha).into_inner();
210 let ss = SharedSecret::new(&their_pub, &our_key);
211 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
213 let mut dec = [0; 0];
214 PeerChannelEncryptor::decrypt_with_ad(&mut dec, 0, &temp_k, &state.h, &act[34..])?;
216 let mut sha = Sha256::engine();
218 sha.input(&act[34..]);
219 state.h = Sha256::from_engine(sha).into_inner();
221 Ok((their_pub, temp_k))
224 pub fn get_act_one(&mut self) -> [u8; 50] {
225 match self.noise_state {
226 NoiseState::InProgress { ref mut state, ref directional_state, ref mut bidirectional_state } =>
227 match directional_state {
228 &DirectionalNoiseState::Outbound { ref ie } => {
229 if *state != NoiseStep::PreActOne {
230 panic!("Requested act at wrong step");
233 let (res, _) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &ie, &self.their_node_id.unwrap());
234 *state = NoiseStep::PostActOne;
237 _ => panic!("Wrong direction for act"),
239 _ => panic!("Cannot get act one after noise handshake completes"),
243 pub fn process_act_one_with_keys(&mut self, act_one: &[u8], our_node_secret: &SecretKey, our_ephemeral: SecretKey) -> Result<[u8; 50], LightningError> {
244 assert_eq!(act_one.len(), 50);
246 match self.noise_state {
247 NoiseState::InProgress { ref mut state, ref mut directional_state, ref mut bidirectional_state } =>
248 match directional_state {
249 &mut DirectionalNoiseState::Inbound { ref mut ie, ref mut re, ref mut temp_k2 } => {
250 if *state != NoiseStep::PreActOne {
251 panic!("Requested act at wrong step");
254 let (their_pub, _) = PeerChannelEncryptor::inbound_noise_act(bidirectional_state, act_one, &our_node_secret)?;
255 ie.get_or_insert(their_pub);
257 re.get_or_insert(our_ephemeral);
259 let (res, temp_k) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &re.unwrap(), &ie.unwrap());
260 *temp_k2 = Some(temp_k);
261 *state = NoiseStep::PostActTwo;
264 _ => panic!("Wrong direction for act"),
266 _ => panic!("Cannot get act one after noise handshake completes"),
270 pub fn process_act_two(&mut self, act_two: &[u8], our_node_secret: &SecretKey) -> Result<([u8; 66], PublicKey), LightningError> {
271 assert_eq!(act_two.len(), 50);
275 let res: [u8; 66] = match self.noise_state {
276 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
277 match directional_state {
278 &DirectionalNoiseState::Outbound { ref ie } => {
279 if *state != NoiseStep::PostActOne {
280 panic!("Requested act at wrong step");
283 let (re, temp_k2) = PeerChannelEncryptor::inbound_noise_act(bidirectional_state, act_two, &ie)?;
285 let mut res = [0; 66];
286 let our_node_id = PublicKey::from_secret_key(&self.secp_ctx, &our_node_secret);
288 PeerChannelEncryptor::encrypt_with_ad(&mut res[1..50], 1, &temp_k2, &bidirectional_state.h, &our_node_id.serialize()[..]);
290 let mut sha = Sha256::engine();
291 sha.input(&bidirectional_state.h);
292 sha.input(&res[1..50]);
293 bidirectional_state.h = Sha256::from_engine(sha).into_inner();
295 let ss = SharedSecret::new(&re, our_node_secret);
296 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
298 PeerChannelEncryptor::encrypt_with_ad(&mut res[50..], 0, &temp_k, &bidirectional_state.h, &[0; 0]);
299 final_hkdf = Self::hkdf_extract_expand(&bidirectional_state.ck, &[0; 0]);
300 ck = bidirectional_state.ck.clone();
303 _ => panic!("Wrong direction for act"),
305 _ => panic!("Cannot get act one after noise handshake completes"),
308 let (sk, rk) = final_hkdf;
309 self.noise_state = NoiseState::Finished {
318 Ok((res, self.their_node_id.unwrap().clone()))
321 pub fn process_act_three(&mut self, act_three: &[u8]) -> Result<PublicKey, LightningError> {
322 assert_eq!(act_three.len(), 66);
326 match self.noise_state {
327 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
328 match directional_state {
329 &DirectionalNoiseState::Inbound { ie: _, ref re, ref temp_k2 } => {
330 if *state != NoiseStep::PostActTwo {
331 panic!("Requested act at wrong step");
333 if act_three[0] != 0 {
334 return Err(LightningError{err: "Unknown handshake version number", action: msgs::ErrorAction::DisconnectPeer{ msg: None }});
337 let mut their_node_id = [0; 33];
338 PeerChannelEncryptor::decrypt_with_ad(&mut their_node_id, 1, &temp_k2.unwrap(), &bidirectional_state.h, &act_three[1..50])?;
339 self.their_node_id = Some(match PublicKey::from_slice(&their_node_id) {
341 Err(_) => return Err(LightningError{err: "Bad node_id from peer", action: msgs::ErrorAction::DisconnectPeer{ msg: None }}),
344 let mut sha = Sha256::engine();
345 sha.input(&bidirectional_state.h);
346 sha.input(&act_three[1..50]);
347 bidirectional_state.h = Sha256::from_engine(sha).into_inner();
349 let ss = SharedSecret::new(&self.their_node_id.unwrap(), &re.unwrap());
350 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
352 PeerChannelEncryptor::decrypt_with_ad(&mut [0; 0], 0, &temp_k, &bidirectional_state.h, &act_three[50..])?;
353 final_hkdf = Self::hkdf_extract_expand(&bidirectional_state.ck, &[0; 0]);
354 ck = bidirectional_state.ck.clone();
356 _ => panic!("Wrong direction for act"),
358 _ => panic!("Cannot get act one after noise handshake completes"),
361 let (rk, sk) = final_hkdf;
362 self.noise_state = NoiseState::Finished {
371 Ok(self.their_node_id.unwrap().clone())
374 /// Encrypts the given message, returning the encrypted version
375 /// panics if msg.len() > 65535 or Noise handshake has not finished.
376 pub fn encrypt_message(&mut self, msg: &[u8]) -> Vec<u8> {
377 if msg.len() > LN_MAX_MSG_LEN {
378 panic!("Attempted to encrypt message longer than 65535 bytes!");
381 let mut res = Vec::with_capacity(msg.len() + 16*2 + 2);
382 res.resize(msg.len() + 16*2 + 2, 0);
384 match self.noise_state {
385 NoiseState::Finished { ref mut sk, ref mut sn, ref mut sck, rk: _, rn: _, rck: _ } => {
387 let (new_sck, new_sk) = Self::hkdf_extract_expand(sck, sk);
393 Self::encrypt_with_ad(&mut res[0..16+2], *sn, sk, &[0; 0], &byte_utils::be16_to_array(msg.len() as u16));
396 Self::encrypt_with_ad(&mut res[16+2..], *sn, sk, &[0; 0], msg);
399 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
405 /// Decrypts a message length header from the remote peer.
406 /// panics if noise handshake has not yet finished or msg.len() != 18
407 pub fn decrypt_length_header(&mut self, msg: &[u8]) -> Result<u16, LightningError> {
408 assert_eq!(msg.len(), 16+2);
410 match self.noise_state {
411 NoiseState::Finished { sk: _, sn: _, sck: _, ref mut rk, ref mut rn, ref mut rck } => {
413 let (new_rck, new_rk) = Self::hkdf_extract_expand(rck, rk);
419 let mut res = [0; 2];
420 Self::decrypt_with_ad(&mut res, *rn, rk, &[0; 0], msg)?;
422 Ok(byte_utils::slice_to_be16(&res))
424 _ => panic!("Tried to decrypt a message prior to noise handshake completion"),
428 /// Decrypts the given message.
429 /// panics if msg.len() > 65535 + 16
430 pub fn decrypt_message(&mut self, msg: &[u8]) -> Result<Vec<u8>, LightningError> {
431 if msg.len() > LN_MAX_MSG_LEN + 16 {
432 panic!("Attempted to decrypt message longer than 65535 + 16 bytes!");
435 match self.noise_state {
436 NoiseState::Finished { sk: _, sn: _, sck: _, ref rk, ref mut rn, rck: _ } => {
437 let mut res = Vec::with_capacity(msg.len() - 16);
438 res.resize(msg.len() - 16, 0);
439 Self::decrypt_with_ad(&mut res[..], *rn, rk, &[0; 0], msg)?;
444 _ => panic!("Tried to decrypt a message prior to noise handshake completion"),
448 pub fn get_noise_step(&self) -> NextNoiseStep {
449 match self.noise_state {
450 NoiseState::InProgress {ref state, ..} => {
452 &NoiseStep::PreActOne => NextNoiseStep::ActOne,
453 &NoiseStep::PostActOne => NextNoiseStep::ActTwo,
454 &NoiseStep::PostActTwo => NextNoiseStep::ActThree,
457 NoiseState::Finished {..} => NextNoiseStep::NoiseComplete,
461 pub fn is_ready_for_encryption(&self) -> bool {
462 match self.noise_state {
463 NoiseState::InProgress {..} => { false },
464 NoiseState::Finished {..} => { true }
471 use super::LN_MAX_MSG_LEN;
473 use bitcoin::secp256k1::key::{PublicKey,SecretKey};
477 use ln::peer_channel_encryptor::{PeerChannelEncryptor,NoiseState};
479 fn get_outbound_peer_for_initiator_test_vectors() -> PeerChannelEncryptor {
480 let their_node_id = PublicKey::from_slice(&hex::decode("028d7500dd4c12685d1f568b4c2b5048e8534b873319f3a8daa612b469132ec7f7").unwrap()[..]).unwrap();
482 let mut outbound_peer = PeerChannelEncryptor::new_outbound(their_node_id, SecretKey::from_slice(&hex::decode("1212121212121212121212121212121212121212121212121212121212121212").unwrap()[..]).unwrap());
483 assert_eq!(outbound_peer.get_act_one()[..], hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap()[..]);
488 fn noise_initiator_test_vectors() {
489 let our_node_id = SecretKey::from_slice(&hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
492 // transport-initiator successful handshake
493 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
495 let act_two = hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
496 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap().0[..], hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
498 match outbound_peer.noise_state {
499 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
500 assert_eq!(sk, hex::decode("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
502 assert_eq!(sck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
503 assert_eq!(rk, hex::decode("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
505 assert_eq!(rck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
511 // transport-initiator act2 short read test
512 // Can't actually test this cause process_act_two requires you pass the right length!
515 // transport-initiator act2 bad version test
516 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
518 let act_two = hex::decode("0102466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
519 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
523 // transport-initiator act2 bad key serialization test
524 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
526 let act_two = hex::decode("0004466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
527 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
531 // transport-initiator act2 bad MAC test
532 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
534 let act_two = hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730af").unwrap().to_vec();
535 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
540 fn noise_responder_test_vectors() {
541 let our_node_id = SecretKey::from_slice(&hex::decode("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
542 let our_ephemeral = SecretKey::from_slice(&hex::decode("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
545 // transport-responder successful handshake
546 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
548 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
549 assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
551 let act_three = hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
552 // test vector doesn't specify the initiator static key, but it's the same as the one
553 // from transport-initiator successful handshake
554 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex::decode("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
556 match inbound_peer.noise_state {
557 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
558 assert_eq!(sk, hex::decode("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
560 assert_eq!(sck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
561 assert_eq!(rk, hex::decode("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
563 assert_eq!(rck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
569 // transport-responder act1 short read test
570 // Can't actually test this cause process_act_one requires you pass the right length!
573 // transport-responder act1 bad version test
574 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
576 let act_one = hex::decode("01036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
577 assert!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
580 // transport-responder act1 bad key serialization test
581 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
583 let act_one =hex::decode("00046360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
584 assert!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
587 // transport-responder act1 bad MAC test
588 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
590 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6b").unwrap().to_vec();
591 assert!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
594 // transport-responder act3 bad version test
595 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
597 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
598 assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
600 let act_three = hex::decode("01b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
601 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
604 // transport-responder act3 short read test
605 // Can't actually test this cause process_act_three requires you pass the right length!
608 // transport-responder act3 bad MAC for ciphertext test
609 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
611 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
612 assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
614 let act_three = hex::decode("00c9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
615 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
618 // transport-responder act3 bad rs 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_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
624 let act_three = hex::decode("00bfe3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa2235536ad09a8ee351870c2bb7f78b754a26c6cef79a98d25139c856d7efd252c2ae73c").unwrap().to_vec();
625 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
628 // transport-responder act3 bad MAC test
629 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
631 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
632 assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
634 let act_three = hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139bb").unwrap().to_vec();
635 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
641 fn message_encryption_decryption_test_vectors() {
642 // We use the same keys as the initiator and responder test vectors, so we copy those tests
643 // here and use them to encrypt.
644 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
647 let our_node_id = SecretKey::from_slice(&hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
649 let act_two = hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
650 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap().0[..], hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
652 match outbound_peer.noise_state {
653 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
654 assert_eq!(sk, hex::decode("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
656 assert_eq!(sck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
657 assert_eq!(rk, hex::decode("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
659 assert_eq!(rck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
665 let mut inbound_peer;
668 // transport-responder successful handshake
669 let our_node_id = SecretKey::from_slice(&hex::decode("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
670 let our_ephemeral = SecretKey::from_slice(&hex::decode("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
672 inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
674 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
675 assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
677 let act_three = hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
678 // test vector doesn't specify the initiator static key, but it's the same as the one
679 // from transport-initiator successful handshake
680 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex::decode("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
682 match inbound_peer.noise_state {
683 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
684 assert_eq!(sk, hex::decode("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
686 assert_eq!(sck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
687 assert_eq!(rk, hex::decode("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
689 assert_eq!(rck, hex::decode("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
696 let msg = [0x68, 0x65, 0x6c, 0x6c, 0x6f];
697 let res = outbound_peer.encrypt_message(&msg);
698 assert_eq!(res.len(), 5 + 2*16 + 2);
700 let len_header = res[0..2+16].to_vec();
701 assert_eq!(inbound_peer.decrypt_length_header(&len_header[..]).unwrap() as usize, msg.len());
702 assert_eq!(inbound_peer.decrypt_message(&res[2+16..]).unwrap()[..], msg[..]);
705 assert_eq!(res, hex::decode("cf2b30ddf0cf3f80e7c35a6e6730b59fe802473180f396d88a8fb0db8cbcf25d2f214cf9ea1d95").unwrap());
707 assert_eq!(res, hex::decode("72887022101f0b6753e0c7de21657d35a4cb2a1f5cde2650528bbc8f837d0f0d7ad833b1a256a1").unwrap());
709 assert_eq!(res, hex::decode("178cb9d7387190fa34db9c2d50027d21793c9bc2d40b1e14dcf30ebeeeb220f48364f7a4c68bf8").unwrap());
711 assert_eq!(res, hex::decode("1b186c57d44eb6de4c057c49940d79bb838a145cb528d6e8fd26dbe50a60ca2c104b56b60e45bd").unwrap());
712 } else if i == 1000 {
713 assert_eq!(res, hex::decode("4a2f3cc3b5e78ddb83dcb426d9863d9d9a723b0337c89dd0b005d89f8d3c05c52b76b29b740f09").unwrap());
714 } else if i == 1001 {
715 assert_eq!(res, hex::decode("2ecd8c8a5629d0d02ab457a0fdd0f7b90a192cd46be5ecb6ca570bfc5e268338b1a16cf4ef2d36").unwrap());
721 #[should_panic(expected = "Attempted to encrypt message longer than 65535 bytes!")]
722 fn max_message_len_encryption() {
723 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
724 let msg = [4u8; LN_MAX_MSG_LEN + 1];
725 outbound_peer.encrypt_message(&msg);
729 #[should_panic(expected = "Attempted to decrypt message longer than 65535 + 16 bytes!")]
730 fn max_message_len_decryption() {
731 let mut inbound_peer;
734 // transport-responder successful handshake
735 let our_node_id = SecretKey::from_slice(&hex::decode("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
736 let our_ephemeral = SecretKey::from_slice(&hex::decode("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
738 inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
740 let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
741 assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
743 let act_three = hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
744 // test vector doesn't specify the initiator static key, but it's the same as the one
745 // from transport-initiator successful handshake
746 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex::decode("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
749 // MSG should not exceed LN_MAX_MSG_LEN + 16
750 let msg = [4u8; LN_MAX_MSG_LEN + 17];
751 inbound_peer.decrypt_message(&msg).unwrap();