1 use ln::msgs::HandleError;
4 use secp256k1::Secp256k1;
5 use secp256k1::key::{PublicKey,SecretKey};
6 use secp256k1::ecdh::SharedSecret;
8 use rand::{thread_rng,Rng};
10 use crypto::digest::Digest;
11 use crypto::hkdf::{hkdf_extract,hkdf_expand};
12 use crypto::sha2::Sha256;
14 use crypto::aead::{AeadEncryptor, AeadDecryptor};
16 use util::chacha20poly1305rfc::ChaCha20Poly1305RFC;
19 // Sha256("Noise_XK_secp256k1_ChaChaPoly_SHA256")
20 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];
21 // Sha256(NOISE_CK || "lightning")
22 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];
24 pub enum NextNoiseStep {
36 // When done swap noise_state for NoiseState::Finished
39 struct BidirectionalNoiseState {
43 enum DirectionalNoiseState {
48 ie: Option<PublicKey>, // filled in if state >= PostActOne
49 re: Option<SecretKey>, // filled in if state >= PostActTwo
50 temp_k2: Option<[u8; 32]>, // filled in if state >= PostActTwo
56 directional_state: DirectionalNoiseState,
57 bidirectional_state: BidirectionalNoiseState,
69 pub struct PeerChannelEncryptor {
71 their_node_id: Option<PublicKey>, // filled in for outbound, or inbound after noise_state is Finished
73 noise_state: NoiseState,
76 impl PeerChannelEncryptor {
77 pub fn new_outbound(their_node_id: PublicKey) -> PeerChannelEncryptor {
78 let mut rng = thread_rng();
79 let mut key = [0u8; 32];
80 rng.fill_bytes(&mut key);
82 let secp_ctx = Secp256k1::new();
83 let sec_key = SecretKey::from_slice(&secp_ctx, &key).unwrap(); //TODO: nicer rng-is-bad error message
85 let mut sha = Sha256::new();
87 sha.input(&their_node_id.serialize()[..]);
91 PeerChannelEncryptor {
92 their_node_id: Some(their_node_id),
94 noise_state: NoiseState::InProgress {
95 state: NoiseStep::PreActOne,
96 directional_state: DirectionalNoiseState::Outbound {
99 bidirectional_state: BidirectionalNoiseState {
107 pub fn new_inbound(our_node_secret: &SecretKey) -> PeerChannelEncryptor {
108 let secp_ctx = Secp256k1::new();
110 let mut sha = Sha256::new();
112 let our_node_id = PublicKey::from_secret_key(&secp_ctx, our_node_secret).unwrap(); //TODO: nicer bad-node_secret error message
113 sha.input(&our_node_id.serialize()[..]);
117 PeerChannelEncryptor {
120 noise_state: NoiseState::InProgress {
121 state: NoiseStep::PreActOne,
122 directional_state: DirectionalNoiseState::Inbound {
127 bidirectional_state: BidirectionalNoiseState {
136 fn encrypt_with_ad(res: &mut[u8], n: u64, key: &[u8; 32], h: &[u8], plaintext: &[u8]) {
137 let mut nonce = [0; 12];
138 nonce[4..].copy_from_slice(&byte_utils::le64_to_array(n));
140 let mut chacha = ChaCha20Poly1305RFC::new(key, &nonce, h);
141 let mut tag = [0; 16];
142 chacha.encrypt(plaintext, &mut res[0..plaintext.len()], &mut tag);
143 res[plaintext.len()..].copy_from_slice(&tag);
147 fn decrypt_with_ad(res: &mut[u8], n: u64, key: &[u8; 32], h: &[u8], cyphertext: &[u8]) -> Result<(), HandleError> {
148 let mut nonce = [0; 12];
149 nonce[4..].copy_from_slice(&byte_utils::le64_to_array(n));
151 let mut chacha = ChaCha20Poly1305RFC::new(key, &nonce, h);
152 if !chacha.decrypt(&cyphertext[0..cyphertext.len() - 16], res, &cyphertext[cyphertext.len() - 16..]) {
153 return Err(HandleError{err: "Bad MAC", msg: Some(msgs::ErrorMessage::DisconnectPeer{})});
159 fn hkdf(state: &mut BidirectionalNoiseState, ss: SharedSecret) -> [u8; 32] {
160 let mut hkdf = [0; 64];
162 let mut prk = [0; 32];
163 hkdf_extract(Sha256::new(), &state.ck, &ss[..], &mut prk);
164 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut hkdf);
166 state.ck.copy_from_slice(&hkdf[0..32]);
167 let mut res = [0; 32];
168 res.copy_from_slice(&hkdf[32..]);
173 fn outbound_noise_act(secp_ctx: &Secp256k1, state: &mut BidirectionalNoiseState, our_key: &SecretKey, their_key: &PublicKey) -> ([u8; 50], [u8; 32]) {
174 let our_pub = PublicKey::from_secret_key(secp_ctx, &our_key).unwrap(); //TODO: nicer rng-is-bad error message
176 let mut sha = Sha256::new();
178 sha.input(&our_pub.serialize()[..]);
179 sha.result(&mut state.h);
181 let ss = SharedSecret::new(secp_ctx, &their_key, &our_key);
182 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
184 let mut res = [0; 50];
185 res[1..34].copy_from_slice(&our_pub.serialize()[..]);
186 PeerChannelEncryptor::encrypt_with_ad(&mut res[34..], 0, &temp_k, &state.h, &[0; 0]);
190 sha.input(&res[34..]);
191 sha.result(&mut state.h);
197 fn inbound_noise_act(secp_ctx: &Secp256k1, state: &mut BidirectionalNoiseState, act: &[u8], our_key: &SecretKey) -> Result<(PublicKey, [u8; 32]), HandleError> {
198 assert_eq!(act.len(), 50);
201 return Err(HandleError{err: "Unknown handshake version number", msg: Some(msgs::ErrorMessage::DisconnectPeer{})});
204 let their_pub = match PublicKey::from_slice(secp_ctx, &act[1..34]) {
205 Err(_) => return Err(HandleError{err: "Invalid public key", msg: Some(msgs::ErrorMessage::DisconnectPeer{})}),
209 let mut sha = Sha256::new();
211 sha.input(&their_pub.serialize()[..]);
212 sha.result(&mut state.h);
214 let ss = SharedSecret::new(secp_ctx, &their_pub, &our_key);
215 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
217 let mut dec = [0; 0];
218 PeerChannelEncryptor::decrypt_with_ad(&mut dec, 0, &temp_k, &state.h, &act[34..])?;
222 sha.input(&act[34..]);
223 sha.result(&mut state.h);
225 Ok((their_pub, temp_k))
228 pub fn get_act_one(&mut self) -> [u8; 50] {
229 match self.noise_state {
230 NoiseState::InProgress { ref mut state, ref directional_state, ref mut bidirectional_state } =>
231 match directional_state {
232 &DirectionalNoiseState::Outbound { ref ie } => {
233 if *state != NoiseStep::PreActOne {
234 panic!("Requested act at wrong step");
237 let (res, _) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &ie, &self.their_node_id.unwrap());
238 *state = NoiseStep::PostActOne;
241 _ => panic!("Wrong direction for act"),
243 _ => panic!("Cannot get act one after noise handshake completes"),
247 // Separated for testing:
248 fn process_act_one_with_ephemeral_key(&mut self, act_one: &[u8], our_node_secret: &SecretKey, our_ephemeral: SecretKey) -> Result<[u8; 50], HandleError> {
249 assert_eq!(act_one.len(), 50);
251 match self.noise_state {
252 NoiseState::InProgress { ref mut state, ref mut directional_state, ref mut bidirectional_state } =>
253 match directional_state {
254 &mut DirectionalNoiseState::Inbound { ref mut ie, ref mut re, ref mut temp_k2 } => {
255 if *state != NoiseStep::PreActOne {
256 panic!("Requested act at wrong step");
259 let (their_pub, _) = PeerChannelEncryptor::inbound_noise_act(&self.secp_ctx, bidirectional_state, act_one, &our_node_secret)?;
260 ie.get_or_insert(their_pub);
262 re.get_or_insert(our_ephemeral);
264 let (res, temp_k) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &re.unwrap(), &ie.unwrap());
265 *temp_k2 = Some(temp_k);
266 *state = NoiseStep::PostActTwo;
269 _ => panic!("Wrong direction for act"),
271 _ => panic!("Cannot get act one after noise handshake completes"),
275 pub fn process_act_one_with_key(&mut self, act_one: &[u8], our_node_secret: &SecretKey) -> Result<[u8; 50], HandleError> {
276 assert_eq!(act_one.len(), 50);
278 let mut rng = thread_rng();
279 let mut key = [0u8; 32];
280 rng.fill_bytes(&mut key);
281 let our_ephemeral_key = SecretKey::from_slice(&self.secp_ctx, &key).unwrap(); //TODO: nicer rng-is-bad error message
282 self.process_act_one_with_ephemeral_key(act_one, our_node_secret, our_ephemeral_key)
285 pub fn process_act_two(&mut self, act_two: &[u8], our_node_secret: &SecretKey) -> Result<[u8; 66], HandleError> {
286 assert_eq!(act_two.len(), 50);
288 let mut final_hkdf = [0; 64];
290 let res: [u8; 66] = match self.noise_state {
291 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
292 match directional_state {
293 &DirectionalNoiseState::Outbound { ref ie } => {
294 if *state != NoiseStep::PostActOne {
295 panic!("Requested act at wrong step");
298 let (re, temp_k2) = PeerChannelEncryptor::inbound_noise_act(&self.secp_ctx, bidirectional_state, act_two, &ie)?;
300 let mut res = [0; 66];
301 let our_node_id = PublicKey::from_secret_key(&self.secp_ctx, &our_node_secret).unwrap(); //TODO: nicer rng-is-bad error message
303 PeerChannelEncryptor::encrypt_with_ad(&mut res[1..50], 1, &temp_k2, &bidirectional_state.h, &our_node_id.serialize()[..]);
305 let mut sha = Sha256::new();
306 sha.input(&bidirectional_state.h);
307 sha.input(&res[1..50]);
308 sha.result(&mut bidirectional_state.h);
310 let ss = SharedSecret::new(&self.secp_ctx, &re, our_node_secret);
311 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
313 PeerChannelEncryptor::encrypt_with_ad(&mut res[50..], 0, &temp_k, &bidirectional_state.h, &[0; 0]);
315 let mut prk = [0; 32];
316 hkdf_extract(Sha256::new(), &bidirectional_state.ck, &[0; 0], &mut prk);
317 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut final_hkdf);
318 ck = bidirectional_state.ck.clone();
321 _ => panic!("Wrong direction for act"),
323 _ => panic!("Cannot get act one after noise handshake completes"),
326 let mut sk = [0; 32];
327 let mut rk = [0; 32];
328 sk.copy_from_slice(&final_hkdf[0..32]);
329 rk.copy_from_slice(&final_hkdf[32..]);
331 self.noise_state = NoiseState::Finished {
343 pub fn process_act_three(&mut self, act_three: &[u8]) -> Result<PublicKey, HandleError> {
344 assert_eq!(act_three.len(), 66);
346 let mut final_hkdf = [0; 64];
348 match self.noise_state {
349 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
350 match directional_state {
351 &DirectionalNoiseState::Inbound { ie: _, ref re, ref temp_k2 } => {
352 if *state != NoiseStep::PostActTwo {
353 panic!("Requested act at wrong step");
355 if act_three[0] != 0 {
356 return Err(HandleError{err: "Unknown handshake version number", msg: Some(msgs::ErrorMessage::DisconnectPeer{})});
359 let mut their_node_id = [0; 33];
360 PeerChannelEncryptor::decrypt_with_ad(&mut their_node_id, 1, &temp_k2.unwrap(), &bidirectional_state.h, &act_three[1..50])?;
361 self.their_node_id = Some(match PublicKey::from_slice(&self.secp_ctx, &their_node_id) {
363 Err(_) => return Err(HandleError{err: "Bad node_id from peer", msg: Some(msgs::ErrorMessage::DisconnectPeer{})}),
366 let mut sha = Sha256::new();
367 sha.input(&bidirectional_state.h);
368 sha.input(&act_three[1..50]);
369 sha.result(&mut bidirectional_state.h);
371 let ss = SharedSecret::new(&self.secp_ctx, &self.their_node_id.unwrap(), &re.unwrap());
372 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
374 PeerChannelEncryptor::decrypt_with_ad(&mut [0; 0], 0, &temp_k, &bidirectional_state.h, &act_three[50..])?;
376 let mut prk = [0; 32];
377 hkdf_extract(Sha256::new(), &bidirectional_state.ck, &[0; 0], &mut prk);
378 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut final_hkdf);
379 ck = bidirectional_state.ck.clone();
381 _ => panic!("Wrong direction for act"),
383 _ => panic!("Cannot get act one after noise handshake completes"),
386 let mut rk = [0; 32];
387 let mut sk = [0; 32];
388 rk.copy_from_slice(&final_hkdf[0..32]);
389 sk.copy_from_slice(&final_hkdf[32..]);
391 self.noise_state = NoiseState::Finished {
400 Ok(self.their_node_id.unwrap().clone())
403 /// Encrypts the given message, returning the encrypted version
404 /// panics if msg.len() > 65535 or Noise handshake has not finished.
405 pub fn encrypt_message(&mut self, msg: &[u8]) -> Vec<u8> {
406 if msg.len() > 65535 {
407 panic!("Attempted to encrypt message longer than 65535 bytes!");
410 let mut res = Vec::with_capacity(msg.len() + 16*2 + 2);
411 res.resize(msg.len() + 16*2 + 2, 0);
413 match self.noise_state {
414 NoiseState::Finished { ref mut sk, ref mut sn, ref mut sck, rk: _, rn: _, rck: _ } => {
416 let mut prk = [0; 32];
417 hkdf_extract(Sha256::new(), sck, sk, &mut prk);
418 let mut hkdf = [0; 64];
419 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut hkdf);
421 sck[..].copy_from_slice(&hkdf[0..32]);
422 sk[..].copy_from_slice(&hkdf[32..]);
426 Self::encrypt_with_ad(&mut res[0..16+2], *sn, sk, &[0; 0], &byte_utils::be16_to_array(msg.len() as u16));
429 Self::encrypt_with_ad(&mut res[16+2..], *sn, sk, &[0; 0], msg);
432 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
438 /// Decrypts a message length header from the remote peer.
439 /// panics if noise handshake has not yet finished or msg.len() != 18
440 pub fn decrypt_length_header(&mut self, msg: &[u8]) -> Result<u16, HandleError> {
441 assert_eq!(msg.len(), 16+2);
443 match self.noise_state {
444 NoiseState::Finished { sk: _, sn: _, sck: _, ref mut rk, ref mut rn, ref mut rck } => {
446 let mut prk = [0; 32];
447 hkdf_extract(Sha256::new(), rck, rk, &mut prk);
448 let mut hkdf = [0; 64];
449 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut hkdf);
451 rck[..].copy_from_slice(&hkdf[0..32]);
452 rk[..].copy_from_slice(&hkdf[32..]);
456 let mut res = [0; 2];
457 Self::decrypt_with_ad(&mut res, *rn, rk, &[0; 0], msg)?;
459 Ok(byte_utils::slice_to_be16(&res))
461 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
465 /// Decrypts the given message.
466 /// panics if msg.len() > 65535 + 16
467 pub fn decrypt_message(&mut self, msg: &[u8]) -> Result<Vec<u8>, HandleError> {
468 if msg.len() > 65535 + 16 {
469 panic!("Attempted to encrypt message longer than 65535 bytes!");
472 match self.noise_state {
473 NoiseState::Finished { sk: _, sn: _, sck: _, ref rk, ref mut rn, rck: _ } => {
474 let mut res = Vec::with_capacity(msg.len() - 16);
475 res.resize(msg.len() - 16, 0);
476 Self::decrypt_with_ad(&mut res[..], *rn, rk, &[0; 0], msg)?;
481 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
485 pub fn get_noise_step(&self) -> NextNoiseStep {
486 match self.noise_state {
487 NoiseState::InProgress {ref state, ..} => {
489 &NoiseStep::PreActOne => NextNoiseStep::ActOne,
490 &NoiseStep::PostActOne => NextNoiseStep::ActTwo,
491 &NoiseStep::PostActTwo => NextNoiseStep::ActThree,
494 NoiseState::Finished {..} => NextNoiseStep::NoiseComplete,
498 pub fn is_ready_for_encryption(&self) -> bool {
499 match self.noise_state {
500 NoiseState::InProgress {..} => { false },
501 NoiseState::Finished {..} => { true }
508 use secp256k1::Secp256k1;
509 use secp256k1::key::{PublicKey,SecretKey};
511 use bitcoin::util::misc::hex_bytes;
513 use ln::peer_channel_encryptor::{PeerChannelEncryptor,NoiseState,DirectionalNoiseState};
515 fn get_outbound_peer_for_initiator_test_vectors() -> PeerChannelEncryptor {
516 let secp_ctx = Secp256k1::new();
517 let their_node_id = PublicKey::from_slice(&secp_ctx, &hex_bytes("028d7500dd4c12685d1f568b4c2b5048e8534b873319f3a8daa612b469132ec7f7").unwrap()[..]).unwrap();
519 let mut outbound_peer = PeerChannelEncryptor::new_outbound(their_node_id);
520 match outbound_peer.noise_state {
521 NoiseState::InProgress { state: _, ref mut directional_state, bidirectional_state: _ } => {
522 *directional_state = DirectionalNoiseState::Outbound { // overwrite ie...
523 ie: SecretKey::from_slice(&secp_ctx, &hex_bytes("1212121212121212121212121212121212121212121212121212121212121212").unwrap()[..]).unwrap(),
529 assert_eq!(outbound_peer.get_act_one()[..], hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap()[..]);
534 fn noise_initiator_test_vectors() {
535 let secp_ctx = Secp256k1::new();
536 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
539 // transport-initiator successful handshake
540 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
542 let act_two = hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
543 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap()[..], hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
545 match outbound_peer.noise_state {
546 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
547 assert_eq!(sk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
549 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
550 assert_eq!(rk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
552 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
558 // transport-initiator act2 short read test
559 // Can't actually test this cause process_act_two requires you pass the right length!
562 // transport-initiator act2 bad version test
563 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
565 let act_two = hex_bytes("0102466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
566 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
570 // transport-initiator act2 bad key serialization test
571 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
573 let act_two = hex_bytes("0004466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
574 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
578 // transport-initiator act2 bad MAC test
579 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
581 let act_two = hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730af").unwrap().to_vec();
582 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
587 fn noise_responder_test_vectors() {
588 let secp_ctx = Secp256k1::new();
589 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
590 let our_ephemeral = SecretKey::from_slice(&secp_ctx, &hex_bytes("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
593 // transport-responder successful handshake
594 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
596 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
597 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
599 let act_three = hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
600 // test vector doesn't specify the initiator static key, but its the same as the one
601 // from trasport-initiator successful handshake
602 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex_bytes("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
604 match inbound_peer.noise_state {
605 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
606 assert_eq!(sk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
608 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
609 assert_eq!(rk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
611 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
617 // transport-responder act1 short read test
618 // Can't actually test this cause process_act_one requires you pass the right length!
621 // transport-responder act1 bad version test
622 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
624 let act_one = hex_bytes("01036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
625 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
628 // transport-responder act1 bad key serialization test
629 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
631 let act_one =hex_bytes("00046360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
632 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
635 // transport-responder act1 bad MAC test
636 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
638 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6b").unwrap().to_vec();
639 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
642 // transport-responder act3 bad version test
643 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
645 let act_one = hex_bytes("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_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
648 let act_three = hex_bytes("01b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
649 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
652 // transport-responder act3 short read test
653 // Can't actually test this cause process_act_three requires you pass the right length!
656 // transport-responder act3 bad MAC for ciphertext test
657 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
659 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
660 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
662 let act_three = hex_bytes("00c9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
663 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
666 // transport-responder act3 bad rs test
667 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
669 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
670 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
672 let act_three = hex_bytes("00bfe3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa2235536ad09a8ee351870c2bb7f78b754a26c6cef79a98d25139c856d7efd252c2ae73c").unwrap().to_vec();
673 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
676 // transport-responder act3 bad MAC test
677 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
679 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
680 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
682 let act_three = hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139bb").unwrap().to_vec();
683 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
689 fn message_encryption_decryption_test_vectors() {
690 let secp_ctx = Secp256k1::new();
692 // We use the same keys as the initiator and responder test vectors, so we copy those tests
693 // here and use them to encrypt.
694 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
697 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
699 let act_two = hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
700 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap()[..], hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
702 match outbound_peer.noise_state {
703 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
704 assert_eq!(sk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
706 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
707 assert_eq!(rk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
709 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
715 let mut inbound_peer;
718 // transport-responder successful handshake
719 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
720 let our_ephemeral = SecretKey::from_slice(&secp_ctx, &hex_bytes("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
722 inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
724 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
725 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
727 let act_three = hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
728 // test vector doesn't specify the initiator static key, but its the same as the one
729 // from trasport-initiator successful handshake
730 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex_bytes("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
732 match inbound_peer.noise_state {
733 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
734 assert_eq!(sk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
736 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
737 assert_eq!(rk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
739 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
746 let msg = [0x68, 0x65, 0x6c, 0x6c, 0x6f];
747 let res = outbound_peer.encrypt_message(&msg);
748 assert_eq!(res.len(), 5 + 2*16 + 2);
750 let len_header = res[0..2+16].to_vec();
751 assert_eq!(inbound_peer.decrypt_length_header(&len_header[..]).unwrap() as usize, msg.len());
752 assert_eq!(inbound_peer.decrypt_message(&res[2+16..]).unwrap()[..], msg[..]);
755 assert_eq!(res, hex_bytes("cf2b30ddf0cf3f80e7c35a6e6730b59fe802473180f396d88a8fb0db8cbcf25d2f214cf9ea1d95").unwrap());
757 assert_eq!(res, hex_bytes("72887022101f0b6753e0c7de21657d35a4cb2a1f5cde2650528bbc8f837d0f0d7ad833b1a256a1").unwrap());
759 assert_eq!(res, hex_bytes("178cb9d7387190fa34db9c2d50027d21793c9bc2d40b1e14dcf30ebeeeb220f48364f7a4c68bf8").unwrap());
761 assert_eq!(res, hex_bytes("1b186c57d44eb6de4c057c49940d79bb838a145cb528d6e8fd26dbe50a60ca2c104b56b60e45bd").unwrap());
762 } else if i == 1000 {
763 assert_eq!(res, hex_bytes("4a2f3cc3b5e78ddb83dcb426d9863d9d9a723b0337c89dd0b005d89f8d3c05c52b76b29b740f09").unwrap());
764 } else if i == 1001 {
765 assert_eq!(res, hex_bytes("2ecd8c8a5629d0d02ab457a0fdd0f7b90a192cd46be5ecb6ca570bfc5e268338b1a16cf4ef2d36").unwrap());