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 sha = Sha256::new();
161 let mut hkdf = [0; 64];
163 let mut prk = [0; 32];
164 hkdf_extract(sha, &state.ck, &ss[..], &mut prk);
165 hkdf_expand(sha, &prk, &[0;0], &mut hkdf);
167 state.ck.copy_from_slice(&hkdf[0..32]);
168 let mut res = [0; 32];
169 res.copy_from_slice(&hkdf[32..]);
174 fn outbound_noise_act(secp_ctx: &Secp256k1, state: &mut BidirectionalNoiseState, our_key: &SecretKey, their_key: &PublicKey) -> ([u8; 50], [u8; 32]) {
175 let our_pub = PublicKey::from_secret_key(secp_ctx, &our_key).unwrap(); //TODO: nicer rng-is-bad error message
177 let mut sha = Sha256::new();
179 sha.input(&our_pub.serialize()[..]);
180 sha.result(&mut state.h);
182 let ss = SharedSecret::new(secp_ctx, &their_key, &our_key);
183 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
185 let mut res = [0; 50];
186 res[1..34].copy_from_slice(&our_pub.serialize()[..]);
187 PeerChannelEncryptor::encrypt_with_ad(&mut res[34..], 0, &temp_k, &state.h, &[0; 0]);
191 sha.input(&res[34..]);
192 sha.result(&mut state.h);
198 fn inbound_noise_act(secp_ctx: &Secp256k1, state: &mut BidirectionalNoiseState, act: &[u8], our_key: &SecretKey) -> Result<(PublicKey, [u8; 32]), HandleError> {
199 assert_eq!(act.len(), 50);
202 return Err(HandleError{err: "Unknown handshake version number", msg: Some(msgs::ErrorMessage::DisconnectPeer{})});
205 let their_pub = match PublicKey::from_slice(secp_ctx, &act[1..34]) {
206 Err(_) => return Err(HandleError{err: "Invalid public key", msg: Some(msgs::ErrorMessage::DisconnectPeer{})}),
210 let mut sha = Sha256::new();
212 sha.input(&their_pub.serialize()[..]);
213 sha.result(&mut state.h);
215 let ss = SharedSecret::new(secp_ctx, &their_pub, &our_key);
216 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
218 let mut dec = [0; 0];
219 PeerChannelEncryptor::decrypt_with_ad(&mut dec, 0, &temp_k, &state.h, &act[34..])?;
223 sha.input(&act[34..]);
224 sha.result(&mut state.h);
226 Ok((their_pub, temp_k))
229 pub fn get_act_one(&mut self) -> [u8; 50] {
230 match self.noise_state {
231 NoiseState::InProgress { ref mut state, ref directional_state, ref mut bidirectional_state } =>
232 match directional_state {
233 &DirectionalNoiseState::Outbound { ref ie } => {
234 if *state != NoiseStep::PreActOne {
235 panic!("Requested act at wrong step");
238 let (res, _) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &ie, &self.their_node_id.unwrap());
239 *state = NoiseStep::PostActOne;
242 _ => panic!("Wrong direction for act"),
244 _ => panic!("Cannot get act one after noise handshake completes"),
248 // Separated for testing:
249 fn process_act_one_with_ephemeral_key(&mut self, act_one: &[u8], our_node_secret: &SecretKey, our_ephemeral: SecretKey) -> Result<[u8; 50], HandleError> {
250 assert_eq!(act_one.len(), 50);
252 match self.noise_state {
253 NoiseState::InProgress { ref mut state, ref mut directional_state, ref mut bidirectional_state } =>
254 match directional_state {
255 &mut DirectionalNoiseState::Inbound { ref mut ie, ref mut re, ref mut temp_k2 } => {
256 if *state != NoiseStep::PreActOne {
257 panic!("Requested act at wrong step");
260 let (their_pub, _) = PeerChannelEncryptor::inbound_noise_act(&self.secp_ctx, bidirectional_state, act_one, &our_node_secret)?;
261 ie.get_or_insert(their_pub);
263 re.get_or_insert(our_ephemeral);
265 let (res, temp_k) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &re.unwrap(), &ie.unwrap());
266 *temp_k2 = Some(temp_k);
267 *state = NoiseStep::PostActTwo;
270 _ => panic!("Wrong direction for act"),
272 _ => panic!("Cannot get act one after noise handshake completes"),
276 pub fn process_act_one_with_key(&mut self, act_one: &[u8], our_node_secret: &SecretKey) -> Result<[u8; 50], HandleError> {
277 assert_eq!(act_one.len(), 50);
279 let mut rng = thread_rng();
280 let mut key = [0u8; 32];
281 rng.fill_bytes(&mut key);
282 let our_ephemeral_key = SecretKey::from_slice(&self.secp_ctx, &key).unwrap(); //TODO: nicer rng-is-bad error message
283 self.process_act_one_with_ephemeral_key(act_one, our_node_secret, our_ephemeral_key)
286 pub fn process_act_two(&mut self, act_two: &[u8], our_node_secret: &SecretKey) -> Result<[u8; 66], HandleError> {
287 assert_eq!(act_two.len(), 50);
289 let mut final_hkdf = [0; 64];
291 let res: [u8; 66] = match self.noise_state {
292 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
293 match directional_state {
294 &DirectionalNoiseState::Outbound { ref ie } => {
295 if *state != NoiseStep::PostActOne {
296 panic!("Requested act at wrong step");
299 let (re, temp_k2) = PeerChannelEncryptor::inbound_noise_act(&self.secp_ctx, bidirectional_state, act_two, &ie)?;
301 let mut res = [0; 66];
302 let our_node_id = PublicKey::from_secret_key(&self.secp_ctx, &our_node_secret).unwrap(); //TODO: nicer rng-is-bad error message
304 PeerChannelEncryptor::encrypt_with_ad(&mut res[1..50], 1, &temp_k2, &bidirectional_state.h, &our_node_id.serialize()[..]);
306 let mut sha = Sha256::new();
307 sha.input(&bidirectional_state.h);
308 sha.input(&res[1..50]);
309 sha.result(&mut bidirectional_state.h);
311 let ss = SharedSecret::new(&self.secp_ctx, &re, our_node_secret);
312 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
314 PeerChannelEncryptor::encrypt_with_ad(&mut res[50..], 0, &temp_k, &bidirectional_state.h, &[0; 0]);
317 let mut prk = [0; 32];
318 hkdf_extract(sha, &bidirectional_state.ck, &[0; 0], &mut prk);
319 hkdf_expand(sha, &prk, &[0;0], &mut final_hkdf);
320 ck = bidirectional_state.ck.clone();
323 _ => panic!("Wrong direction for act"),
325 _ => panic!("Cannot get act one after noise handshake completes"),
328 let mut sk = [0; 32];
329 let mut rk = [0; 32];
330 sk.copy_from_slice(&final_hkdf[0..32]);
331 rk.copy_from_slice(&final_hkdf[32..]);
333 self.noise_state = NoiseState::Finished {
345 pub fn process_act_three(&mut self, act_three: &[u8]) -> Result<PublicKey, HandleError> {
346 assert_eq!(act_three.len(), 66);
348 let mut final_hkdf = [0; 64];
350 match self.noise_state {
351 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
352 match directional_state {
353 &DirectionalNoiseState::Inbound { ie: _, ref re, ref temp_k2 } => {
354 if *state != NoiseStep::PostActTwo {
355 panic!("Requested act at wrong step");
357 if act_three[0] != 0 {
358 return Err(HandleError{err: "Unknown handshake version number", msg: Some(msgs::ErrorMessage::DisconnectPeer{})});
361 let mut their_node_id = [0; 33];
362 PeerChannelEncryptor::decrypt_with_ad(&mut their_node_id, 1, &temp_k2.unwrap(), &bidirectional_state.h, &act_three[1..50])?;
363 self.their_node_id = Some(match PublicKey::from_slice(&self.secp_ctx, &their_node_id) {
365 Err(_) => return Err(HandleError{err: "Bad node_id from peer", msg: Some(msgs::ErrorMessage::DisconnectPeer{})}),
368 let mut sha = Sha256::new();
369 sha.input(&bidirectional_state.h);
370 sha.input(&act_three[1..50]);
371 sha.result(&mut bidirectional_state.h);
373 let ss = SharedSecret::new(&self.secp_ctx, &self.their_node_id.unwrap(), &re.unwrap());
374 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
376 PeerChannelEncryptor::decrypt_with_ad(&mut [0; 0], 0, &temp_k, &bidirectional_state.h, &act_three[50..])?;
379 let mut prk = [0; 32];
380 hkdf_extract(sha, &bidirectional_state.ck, &[0; 0], &mut prk);
381 hkdf_expand(sha, &prk, &[0;0], &mut final_hkdf);
382 ck = bidirectional_state.ck.clone();
384 _ => panic!("Wrong direction for act"),
386 _ => panic!("Cannot get act one after noise handshake completes"),
389 let mut rk = [0; 32];
390 let mut sk = [0; 32];
391 rk.copy_from_slice(&final_hkdf[0..32]);
392 sk.copy_from_slice(&final_hkdf[32..]);
394 self.noise_state = NoiseState::Finished {
403 Ok(self.their_node_id.unwrap().clone())
406 /// Encrypts the given message, returning the encrypted version
407 /// panics if msg.len() > 65535 or Noise handshake has not finished.
408 pub fn encrypt_message(&mut self, msg: &[u8]) -> Vec<u8> {
409 if msg.len() > 65535 {
410 panic!("Attempted to encrypt message longer than 65535 bytes!");
413 let mut res = Vec::with_capacity(msg.len() + 16*2 + 2);
414 res.resize(msg.len() + 16*2 + 2, 0);
416 match self.noise_state {
417 NoiseState::Finished { ref mut sk, ref mut sn, ref mut sck, rk: _, rn: _, rck: _ } => {
419 let mut sha = Sha256::new();
420 let mut prk = [0; 32];
421 hkdf_extract(sha, sck, sk, &mut prk);
422 let mut hkdf = [0; 64];
423 hkdf_expand(sha, &prk, &[0;0], &mut hkdf);
425 sck[..].copy_from_slice(&hkdf[0..32]);
426 sk[..].copy_from_slice(&hkdf[32..]);
430 Self::encrypt_with_ad(&mut res[0..16+2], *sn, sk, &[0; 0], &byte_utils::be16_to_array(msg.len() as u16));
433 Self::encrypt_with_ad(&mut res[16+2..], *sn, sk, &[0; 0], msg);
436 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
442 /// Decrypts a message length header from the remote peer.
443 /// panics if noise handshake has not yet finished or msg.len() != 18
444 pub fn decrypt_length_header(&mut self, msg: &[u8]) -> Result<u16, HandleError> {
445 assert_eq!(msg.len(), 16+2);
447 match self.noise_state {
448 NoiseState::Finished { sk: _, sn: _, sck: _, ref mut rk, ref mut rn, ref mut rck } => {
450 let mut sha = Sha256::new();
451 let mut prk = [0; 32];
452 hkdf_extract(sha, rck, rk, &mut prk);
453 let mut hkdf = [0; 64];
454 hkdf_expand(sha, &prk, &[0;0], &mut hkdf);
456 rck[..].copy_from_slice(&hkdf[0..32]);
457 rk[..].copy_from_slice(&hkdf[32..]);
461 let mut res = [0; 2];
462 Self::decrypt_with_ad(&mut res, *rn, rk, &[0; 0], msg)?;
464 Ok(byte_utils::slice_to_be16(&res))
466 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
470 /// Decrypts the given message.
471 /// panics if msg.len() > 65535 + 16
472 pub fn decrypt_message(&mut self, msg: &[u8]) -> Result<Vec<u8>, HandleError> {
473 if msg.len() > 65535 + 16 {
474 panic!("Attempted to encrypt message longer than 65535 bytes!");
477 match self.noise_state {
478 NoiseState::Finished { sk: _, sn: _, sck: _, ref rk, ref mut rn, rck: _ } => {
479 let mut res = Vec::with_capacity(msg.len() - 16);
480 res.resize(msg.len() - 16, 0);
481 Self::decrypt_with_ad(&mut res[..], *rn, rk, &[0; 0], msg)?;
486 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
490 pub fn get_noise_step(&self) -> NextNoiseStep {
491 match self.noise_state {
492 NoiseState::InProgress {ref state, ..} => {
494 &NoiseStep::PreActOne => NextNoiseStep::ActOne,
495 &NoiseStep::PostActOne => NextNoiseStep::ActTwo,
496 &NoiseStep::PostActTwo => NextNoiseStep::ActThree,
499 NoiseState::Finished {..} => NextNoiseStep::NoiseComplete,
503 pub fn is_ready_for_encryption(&self) -> bool {
504 match self.noise_state {
505 NoiseState::InProgress {..} => { false },
506 NoiseState::Finished {..} => { true }
513 use secp256k1::Secp256k1;
514 use secp256k1::key::{PublicKey,SecretKey};
516 use bitcoin::util::misc::hex_bytes;
518 use ln::peer_channel_encryptor::{PeerChannelEncryptor,NoiseState,DirectionalNoiseState};
520 fn get_outbound_peer_for_initiator_test_vectors() -> PeerChannelEncryptor {
521 let secp_ctx = Secp256k1::new();
522 let their_node_id = PublicKey::from_slice(&secp_ctx, &hex_bytes("028d7500dd4c12685d1f568b4c2b5048e8534b873319f3a8daa612b469132ec7f7").unwrap()[..]).unwrap();
524 let mut outbound_peer = PeerChannelEncryptor::new_outbound(their_node_id);
525 match outbound_peer.noise_state {
526 NoiseState::InProgress { state: _, ref mut directional_state, bidirectional_state: _ } => {
527 *directional_state = DirectionalNoiseState::Outbound { // overwrite ie...
528 ie: SecretKey::from_slice(&secp_ctx, &hex_bytes("1212121212121212121212121212121212121212121212121212121212121212").unwrap()[..]).unwrap(),
534 assert_eq!(outbound_peer.get_act_one()[..], hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap()[..]);
539 fn noise_initiator_test_vectors() {
540 let secp_ctx = Secp256k1::new();
541 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
544 // transport-initiator successful handshake
545 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
547 let act_two = hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
548 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap()[..], hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
550 match outbound_peer.noise_state {
551 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
552 assert_eq!(sk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
554 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
555 assert_eq!(rk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
557 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
563 // transport-initiator act2 short read test
564 // Can't actually test this cause process_act_two requires you pass the right length!
567 // transport-initiator act2 bad version test
568 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
570 let act_two = hex_bytes("0102466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
571 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
575 // transport-initiator act2 bad key serialization test
576 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
578 let act_two = hex_bytes("0004466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
579 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
583 // transport-initiator act2 bad MAC test
584 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
586 let act_two = hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730af").unwrap().to_vec();
587 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
592 fn noise_responder_test_vectors() {
593 let secp_ctx = Secp256k1::new();
594 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
595 let our_ephemeral = SecretKey::from_slice(&secp_ctx, &hex_bytes("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
598 // transport-responder successful handshake
599 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
601 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
602 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
604 let act_three = hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
605 // test vector doesn't specify the initiator static key, but its the same as the one
606 // from trasport-initiator successful handshake
607 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex_bytes("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
609 match inbound_peer.noise_state {
610 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
611 assert_eq!(sk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
613 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
614 assert_eq!(rk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
616 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
622 // transport-responder act1 short read test
623 // Can't actually test this cause process_act_one requires you pass the right length!
626 // transport-responder act1 bad version test
627 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
629 let act_one = hex_bytes("01036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
630 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
633 // transport-responder act1 bad key serialization test
634 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
636 let act_one =hex_bytes("00046360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
637 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
640 // transport-responder act1 bad MAC test
641 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
643 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6b").unwrap().to_vec();
644 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
647 // transport-responder act3 bad version test
648 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
650 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
651 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
653 let act_three = hex_bytes("01b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
654 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
657 // transport-responder act3 short read test
658 // Can't actually test this cause process_act_three requires you pass the right length!
661 // transport-responder act3 bad MAC for ciphertext test
662 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
664 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
665 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
667 let act_three = hex_bytes("00c9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
668 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
671 // transport-responder act3 bad rs test
672 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
674 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
675 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
677 let act_three = hex_bytes("00bfe3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa2235536ad09a8ee351870c2bb7f78b754a26c6cef79a98d25139c856d7efd252c2ae73c").unwrap().to_vec();
678 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
681 // transport-responder act3 bad MAC test
682 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
684 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
685 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
687 let act_three = hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139bb").unwrap().to_vec();
688 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
694 fn message_encryption_decryption_test_vectors() {
695 let secp_ctx = Secp256k1::new();
697 // We use the same keys as the initiator and responder test vectors, so we copy those tests
698 // here and use them to encrypt.
699 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
702 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
704 let act_two = hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
705 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap()[..], hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
707 match outbound_peer.noise_state {
708 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
709 assert_eq!(sk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
711 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
712 assert_eq!(rk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
714 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
720 let mut inbound_peer;
723 // transport-responder successful handshake
724 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
725 let our_ephemeral = SecretKey::from_slice(&secp_ctx, &hex_bytes("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
727 inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
729 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
730 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
732 let act_three = hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
733 // test vector doesn't specify the initiator static key, but its the same as the one
734 // from trasport-initiator successful handshake
735 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex_bytes("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
737 match inbound_peer.noise_state {
738 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
739 assert_eq!(sk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
741 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
742 assert_eq!(rk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
744 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
751 let msg = [0x68, 0x65, 0x6c, 0x6c, 0x6f];
752 let res = outbound_peer.encrypt_message(&msg);
753 assert_eq!(res.len(), 5 + 2*16 + 2);
755 let mut len_header = res[0..2+16].to_vec();
756 assert_eq!(inbound_peer.decrypt_length_header(&len_header[..]).unwrap() as usize, msg.len());
757 assert_eq!(inbound_peer.decrypt_message(&res[2+16..]).unwrap()[..], msg[..]);
760 assert_eq!(res, hex_bytes("cf2b30ddf0cf3f80e7c35a6e6730b59fe802473180f396d88a8fb0db8cbcf25d2f214cf9ea1d95").unwrap());
762 assert_eq!(res, hex_bytes("72887022101f0b6753e0c7de21657d35a4cb2a1f5cde2650528bbc8f837d0f0d7ad833b1a256a1").unwrap());
764 assert_eq!(res, hex_bytes("178cb9d7387190fa34db9c2d50027d21793c9bc2d40b1e14dcf30ebeeeb220f48364f7a4c68bf8").unwrap());
766 assert_eq!(res, hex_bytes("1b186c57d44eb6de4c057c49940d79bb838a145cb528d6e8fd26dbe50a60ca2c104b56b60e45bd").unwrap());
767 } else if i == 1000 {
768 assert_eq!(res, hex_bytes("4a2f3cc3b5e78ddb83dcb426d9863d9d9a723b0337c89dd0b005d89f8d3c05c52b76b29b740f09").unwrap());
769 } else if i == 1001 {
770 assert_eq!(res, hex_bytes("2ecd8c8a5629d0d02ab457a0fdd0f7b90a192cd46be5ecb6ca570bfc5e268338b1a16cf4ef2d36").unwrap());