1 use ln::msgs::HandleError;
4 use secp256k1::Secp256k1;
5 use secp256k1::key::{PublicKey,SecretKey};
6 use secp256k1::ecdh::SharedSecret;
8 use crypto::digest::Digest;
9 use crypto::hkdf::{hkdf_extract,hkdf_expand};
11 use crypto::aead::{AeadEncryptor, AeadDecryptor};
13 use util::chacha20poly1305rfc::ChaCha20Poly1305RFC;
14 use util::{byte_utils,rng};
15 use util::sha2::Sha256;
17 // Sha256("Noise_XK_secp256k1_ChaChaPoly_SHA256")
18 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];
19 // Sha256(NOISE_CK || "lightning")
20 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];
22 pub enum NextNoiseStep {
34 // When done swap noise_state for NoiseState::Finished
37 struct BidirectionalNoiseState {
41 enum DirectionalNoiseState {
46 ie: Option<PublicKey>, // filled in if state >= PostActOne
47 re: Option<SecretKey>, // filled in if state >= PostActTwo
48 temp_k2: Option<[u8; 32]>, // filled in if state >= PostActTwo
54 directional_state: DirectionalNoiseState,
55 bidirectional_state: BidirectionalNoiseState,
67 pub struct PeerChannelEncryptor {
69 their_node_id: Option<PublicKey>, // filled in for outbound, or inbound after noise_state is Finished
71 noise_state: NoiseState,
74 impl PeerChannelEncryptor {
75 pub fn new_outbound(their_node_id: PublicKey) -> PeerChannelEncryptor {
76 let mut key = [0u8; 32];
77 rng::fill_bytes(&mut key);
79 let secp_ctx = Secp256k1::new();
80 let sec_key = SecretKey::from_slice(&secp_ctx, &key).unwrap(); //TODO: nicer rng-is-bad error message
82 let mut sha = Sha256::new();
84 sha.input(&their_node_id.serialize()[..]);
88 PeerChannelEncryptor {
89 their_node_id: Some(their_node_id),
91 noise_state: NoiseState::InProgress {
92 state: NoiseStep::PreActOne,
93 directional_state: DirectionalNoiseState::Outbound {
96 bidirectional_state: BidirectionalNoiseState {
104 pub fn new_inbound(our_node_secret: &SecretKey) -> PeerChannelEncryptor {
105 let secp_ctx = Secp256k1::new();
107 let mut sha = Sha256::new();
109 let our_node_id = PublicKey::from_secret_key(&secp_ctx, our_node_secret).unwrap(); //TODO: nicer bad-node_secret error message
110 sha.input(&our_node_id.serialize()[..]);
114 PeerChannelEncryptor {
117 noise_state: NoiseState::InProgress {
118 state: NoiseStep::PreActOne,
119 directional_state: DirectionalNoiseState::Inbound {
124 bidirectional_state: BidirectionalNoiseState {
133 fn encrypt_with_ad(res: &mut[u8], n: u64, key: &[u8; 32], h: &[u8], plaintext: &[u8]) {
134 let mut nonce = [0; 12];
135 nonce[4..].copy_from_slice(&byte_utils::le64_to_array(n));
137 let mut chacha = ChaCha20Poly1305RFC::new(key, &nonce, h);
138 let mut tag = [0; 16];
139 chacha.encrypt(plaintext, &mut res[0..plaintext.len()], &mut tag);
140 res[plaintext.len()..].copy_from_slice(&tag);
144 fn decrypt_with_ad(res: &mut[u8], n: u64, key: &[u8; 32], h: &[u8], cyphertext: &[u8]) -> Result<(), HandleError> {
145 let mut nonce = [0; 12];
146 nonce[4..].copy_from_slice(&byte_utils::le64_to_array(n));
148 let mut chacha = ChaCha20Poly1305RFC::new(key, &nonce, h);
149 if !chacha.decrypt(&cyphertext[0..cyphertext.len() - 16], res, &cyphertext[cyphertext.len() - 16..]) {
150 return Err(HandleError{err: "Bad MAC", msg: Some(msgs::ErrorAction::DisconnectPeer{})});
156 fn hkdf(state: &mut BidirectionalNoiseState, ss: SharedSecret) -> [u8; 32] {
157 let mut hkdf = [0; 64];
159 let mut prk = [0; 32];
160 hkdf_extract(Sha256::new(), &state.ck, &ss[..], &mut prk);
161 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut hkdf);
163 state.ck.copy_from_slice(&hkdf[0..32]);
164 let mut res = [0; 32];
165 res.copy_from_slice(&hkdf[32..]);
170 fn outbound_noise_act(secp_ctx: &Secp256k1, state: &mut BidirectionalNoiseState, our_key: &SecretKey, their_key: &PublicKey) -> ([u8; 50], [u8; 32]) {
171 let our_pub = PublicKey::from_secret_key(secp_ctx, &our_key).unwrap(); //TODO: nicer rng-is-bad error message
173 let mut sha = Sha256::new();
175 sha.input(&our_pub.serialize()[..]);
176 sha.result(&mut state.h);
178 let ss = SharedSecret::new(secp_ctx, &their_key, &our_key);
179 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
181 let mut res = [0; 50];
182 res[1..34].copy_from_slice(&our_pub.serialize()[..]);
183 PeerChannelEncryptor::encrypt_with_ad(&mut res[34..], 0, &temp_k, &state.h, &[0; 0]);
187 sha.input(&res[34..]);
188 sha.result(&mut state.h);
194 fn inbound_noise_act(secp_ctx: &Secp256k1, state: &mut BidirectionalNoiseState, act: &[u8], our_key: &SecretKey) -> Result<(PublicKey, [u8; 32]), HandleError> {
195 assert_eq!(act.len(), 50);
198 return Err(HandleError{err: "Unknown handshake version number", msg: Some(msgs::ErrorAction::DisconnectPeer{})});
201 let their_pub = match PublicKey::from_slice(secp_ctx, &act[1..34]) {
202 Err(_) => return Err(HandleError{err: "Invalid public key", msg: Some(msgs::ErrorAction::DisconnectPeer{})}),
206 let mut sha = Sha256::new();
208 sha.input(&their_pub.serialize()[..]);
209 sha.result(&mut state.h);
211 let ss = SharedSecret::new(secp_ctx, &their_pub, &our_key);
212 let temp_k = PeerChannelEncryptor::hkdf(state, ss);
214 let mut dec = [0; 0];
215 PeerChannelEncryptor::decrypt_with_ad(&mut dec, 0, &temp_k, &state.h, &act[34..])?;
219 sha.input(&act[34..]);
220 sha.result(&mut state.h);
222 Ok((their_pub, temp_k))
225 pub fn get_act_one(&mut self) -> [u8; 50] {
226 match self.noise_state {
227 NoiseState::InProgress { ref mut state, ref directional_state, ref mut bidirectional_state } =>
228 match directional_state {
229 &DirectionalNoiseState::Outbound { ref ie } => {
230 if *state != NoiseStep::PreActOne {
231 panic!("Requested act at wrong step");
234 let (res, _) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &ie, &self.their_node_id.unwrap());
235 *state = NoiseStep::PostActOne;
238 _ => panic!("Wrong direction for act"),
240 _ => panic!("Cannot get act one after noise handshake completes"),
244 // Separated for testing:
245 fn process_act_one_with_ephemeral_key(&mut self, act_one: &[u8], our_node_secret: &SecretKey, our_ephemeral: SecretKey) -> Result<[u8; 50], HandleError> {
246 assert_eq!(act_one.len(), 50);
248 match self.noise_state {
249 NoiseState::InProgress { ref mut state, ref mut directional_state, ref mut bidirectional_state } =>
250 match directional_state {
251 &mut DirectionalNoiseState::Inbound { ref mut ie, ref mut re, ref mut temp_k2 } => {
252 if *state != NoiseStep::PreActOne {
253 panic!("Requested act at wrong step");
256 let (their_pub, _) = PeerChannelEncryptor::inbound_noise_act(&self.secp_ctx, bidirectional_state, act_one, &our_node_secret)?;
257 ie.get_or_insert(their_pub);
259 re.get_or_insert(our_ephemeral);
261 let (res, temp_k) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &re.unwrap(), &ie.unwrap());
262 *temp_k2 = Some(temp_k);
263 *state = NoiseStep::PostActTwo;
266 _ => panic!("Wrong direction for act"),
268 _ => panic!("Cannot get act one after noise handshake completes"),
272 pub fn process_act_one_with_key(&mut self, act_one: &[u8], our_node_secret: &SecretKey) -> Result<[u8; 50], HandleError> {
273 assert_eq!(act_one.len(), 50);
275 let mut key = [0u8; 32];
276 rng::fill_bytes(&mut key);
277 let our_ephemeral_key = SecretKey::from_slice(&self.secp_ctx, &key).unwrap(); //TODO: nicer rng-is-bad error message
278 self.process_act_one_with_ephemeral_key(act_one, our_node_secret, our_ephemeral_key)
281 pub fn process_act_two(&mut self, act_two: &[u8], our_node_secret: &SecretKey) -> Result<[u8; 66], HandleError> {
282 assert_eq!(act_two.len(), 50);
284 let mut final_hkdf = [0; 64];
286 let res: [u8; 66] = match self.noise_state {
287 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
288 match directional_state {
289 &DirectionalNoiseState::Outbound { ref ie } => {
290 if *state != NoiseStep::PostActOne {
291 panic!("Requested act at wrong step");
294 let (re, temp_k2) = PeerChannelEncryptor::inbound_noise_act(&self.secp_ctx, bidirectional_state, act_two, &ie)?;
296 let mut res = [0; 66];
297 let our_node_id = PublicKey::from_secret_key(&self.secp_ctx, &our_node_secret).unwrap(); //TODO: nicer rng-is-bad error message
299 PeerChannelEncryptor::encrypt_with_ad(&mut res[1..50], 1, &temp_k2, &bidirectional_state.h, &our_node_id.serialize()[..]);
301 let mut sha = Sha256::new();
302 sha.input(&bidirectional_state.h);
303 sha.input(&res[1..50]);
304 sha.result(&mut bidirectional_state.h);
306 let ss = SharedSecret::new(&self.secp_ctx, &re, our_node_secret);
307 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
309 PeerChannelEncryptor::encrypt_with_ad(&mut res[50..], 0, &temp_k, &bidirectional_state.h, &[0; 0]);
311 let mut prk = [0; 32];
312 hkdf_extract(Sha256::new(), &bidirectional_state.ck, &[0; 0], &mut prk);
313 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut final_hkdf);
314 ck = bidirectional_state.ck.clone();
317 _ => panic!("Wrong direction for act"),
319 _ => panic!("Cannot get act one after noise handshake completes"),
322 let mut sk = [0; 32];
323 let mut rk = [0; 32];
324 sk.copy_from_slice(&final_hkdf[0..32]);
325 rk.copy_from_slice(&final_hkdf[32..]);
327 self.noise_state = NoiseState::Finished {
339 pub fn process_act_three(&mut self, act_three: &[u8]) -> Result<PublicKey, HandleError> {
340 assert_eq!(act_three.len(), 66);
342 let mut final_hkdf = [0; 64];
344 match self.noise_state {
345 NoiseState::InProgress { ref state, ref directional_state, ref mut bidirectional_state } =>
346 match directional_state {
347 &DirectionalNoiseState::Inbound { ie: _, ref re, ref temp_k2 } => {
348 if *state != NoiseStep::PostActTwo {
349 panic!("Requested act at wrong step");
351 if act_three[0] != 0 {
352 return Err(HandleError{err: "Unknown handshake version number", msg: Some(msgs::ErrorAction::DisconnectPeer{})});
355 let mut their_node_id = [0; 33];
356 PeerChannelEncryptor::decrypt_with_ad(&mut their_node_id, 1, &temp_k2.unwrap(), &bidirectional_state.h, &act_three[1..50])?;
357 self.their_node_id = Some(match PublicKey::from_slice(&self.secp_ctx, &their_node_id) {
359 Err(_) => return Err(HandleError{err: "Bad node_id from peer", msg: Some(msgs::ErrorAction::DisconnectPeer{})}),
362 let mut sha = Sha256::new();
363 sha.input(&bidirectional_state.h);
364 sha.input(&act_three[1..50]);
365 sha.result(&mut bidirectional_state.h);
367 let ss = SharedSecret::new(&self.secp_ctx, &self.their_node_id.unwrap(), &re.unwrap());
368 let temp_k = PeerChannelEncryptor::hkdf(bidirectional_state, ss);
370 PeerChannelEncryptor::decrypt_with_ad(&mut [0; 0], 0, &temp_k, &bidirectional_state.h, &act_three[50..])?;
372 let mut prk = [0; 32];
373 hkdf_extract(Sha256::new(), &bidirectional_state.ck, &[0; 0], &mut prk);
374 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut final_hkdf);
375 ck = bidirectional_state.ck.clone();
377 _ => panic!("Wrong direction for act"),
379 _ => panic!("Cannot get act one after noise handshake completes"),
382 let mut rk = [0; 32];
383 let mut sk = [0; 32];
384 rk.copy_from_slice(&final_hkdf[0..32]);
385 sk.copy_from_slice(&final_hkdf[32..]);
387 self.noise_state = NoiseState::Finished {
396 Ok(self.their_node_id.unwrap().clone())
399 /// Encrypts the given message, returning the encrypted version
400 /// panics if msg.len() > 65535 or Noise handshake has not finished.
401 pub fn encrypt_message(&mut self, msg: &[u8]) -> Vec<u8> {
402 if msg.len() > 65535 {
403 panic!("Attempted to encrypt message longer than 65535 bytes!");
406 let mut res = Vec::with_capacity(msg.len() + 16*2 + 2);
407 res.resize(msg.len() + 16*2 + 2, 0);
409 match self.noise_state {
410 NoiseState::Finished { ref mut sk, ref mut sn, ref mut sck, rk: _, rn: _, rck: _ } => {
412 let mut prk = [0; 32];
413 hkdf_extract(Sha256::new(), sck, sk, &mut prk);
414 let mut hkdf = [0; 64];
415 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut hkdf);
417 sck[..].copy_from_slice(&hkdf[0..32]);
418 sk[..].copy_from_slice(&hkdf[32..]);
422 Self::encrypt_with_ad(&mut res[0..16+2], *sn, sk, &[0; 0], &byte_utils::be16_to_array(msg.len() as u16));
425 Self::encrypt_with_ad(&mut res[16+2..], *sn, sk, &[0; 0], msg);
428 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
434 /// Decrypts a message length header from the remote peer.
435 /// panics if noise handshake has not yet finished or msg.len() != 18
436 pub fn decrypt_length_header(&mut self, msg: &[u8]) -> Result<u16, HandleError> {
437 assert_eq!(msg.len(), 16+2);
439 match self.noise_state {
440 NoiseState::Finished { sk: _, sn: _, sck: _, ref mut rk, ref mut rn, ref mut rck } => {
442 let mut prk = [0; 32];
443 hkdf_extract(Sha256::new(), rck, rk, &mut prk);
444 let mut hkdf = [0; 64];
445 hkdf_expand(Sha256::new(), &prk, &[0;0], &mut hkdf);
447 rck[..].copy_from_slice(&hkdf[0..32]);
448 rk[..].copy_from_slice(&hkdf[32..]);
452 let mut res = [0; 2];
453 Self::decrypt_with_ad(&mut res, *rn, rk, &[0; 0], msg)?;
455 Ok(byte_utils::slice_to_be16(&res))
457 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
461 /// Decrypts the given message.
462 /// panics if msg.len() > 65535 + 16
463 pub fn decrypt_message(&mut self, msg: &[u8]) -> Result<Vec<u8>, HandleError> {
464 if msg.len() > 65535 + 16 {
465 panic!("Attempted to encrypt message longer than 65535 bytes!");
468 match self.noise_state {
469 NoiseState::Finished { sk: _, sn: _, sck: _, ref rk, ref mut rn, rck: _ } => {
470 let mut res = Vec::with_capacity(msg.len() - 16);
471 res.resize(msg.len() - 16, 0);
472 Self::decrypt_with_ad(&mut res[..], *rn, rk, &[0; 0], msg)?;
477 _ => panic!("Tried to encrypt a message prior to noise handshake completion"),
481 pub fn get_noise_step(&self) -> NextNoiseStep {
482 match self.noise_state {
483 NoiseState::InProgress {ref state, ..} => {
485 &NoiseStep::PreActOne => NextNoiseStep::ActOne,
486 &NoiseStep::PostActOne => NextNoiseStep::ActTwo,
487 &NoiseStep::PostActTwo => NextNoiseStep::ActThree,
490 NoiseState::Finished {..} => NextNoiseStep::NoiseComplete,
494 pub fn is_ready_for_encryption(&self) -> bool {
495 match self.noise_state {
496 NoiseState::InProgress {..} => { false },
497 NoiseState::Finished {..} => { true }
504 use secp256k1::Secp256k1;
505 use secp256k1::key::{PublicKey,SecretKey};
507 use bitcoin::util::misc::hex_bytes;
509 use ln::peer_channel_encryptor::{PeerChannelEncryptor,NoiseState,DirectionalNoiseState};
511 fn get_outbound_peer_for_initiator_test_vectors() -> PeerChannelEncryptor {
512 let secp_ctx = Secp256k1::new();
513 let their_node_id = PublicKey::from_slice(&secp_ctx, &hex_bytes("028d7500dd4c12685d1f568b4c2b5048e8534b873319f3a8daa612b469132ec7f7").unwrap()[..]).unwrap();
515 let mut outbound_peer = PeerChannelEncryptor::new_outbound(their_node_id);
516 match outbound_peer.noise_state {
517 NoiseState::InProgress { state: _, ref mut directional_state, bidirectional_state: _ } => {
518 *directional_state = DirectionalNoiseState::Outbound { // overwrite ie...
519 ie: SecretKey::from_slice(&secp_ctx, &hex_bytes("1212121212121212121212121212121212121212121212121212121212121212").unwrap()[..]).unwrap(),
525 assert_eq!(outbound_peer.get_act_one()[..], hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap()[..]);
530 fn noise_initiator_test_vectors() {
531 let secp_ctx = Secp256k1::new();
532 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
535 // transport-initiator successful handshake
536 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
538 let act_two = hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
539 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap()[..], hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
541 match outbound_peer.noise_state {
542 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
543 assert_eq!(sk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
545 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
546 assert_eq!(rk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
548 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
554 // transport-initiator act2 short read test
555 // Can't actually test this cause process_act_two requires you pass the right length!
558 // transport-initiator act2 bad version test
559 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
561 let act_two = hex_bytes("0102466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
562 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
566 // transport-initiator act2 bad key serialization test
567 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
569 let act_two = hex_bytes("0004466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
570 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
574 // transport-initiator act2 bad MAC test
575 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
577 let act_two = hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730af").unwrap().to_vec();
578 assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err());
583 fn noise_responder_test_vectors() {
584 let secp_ctx = Secp256k1::new();
585 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
586 let our_ephemeral = SecretKey::from_slice(&secp_ctx, &hex_bytes("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
589 // transport-responder successful handshake
590 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
592 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
593 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
595 let act_three = hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
596 // test vector doesn't specify the initiator static key, but its the same as the one
597 // from trasport-initiator successful handshake
598 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex_bytes("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
600 match inbound_peer.noise_state {
601 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
602 assert_eq!(sk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
604 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
605 assert_eq!(rk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
607 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
613 // transport-responder act1 short read test
614 // Can't actually test this cause process_act_one requires you pass the right length!
617 // transport-responder act1 bad version test
618 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
620 let act_one = hex_bytes("01036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
621 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
624 // transport-responder act1 bad key serialization test
625 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
627 let act_one =hex_bytes("00046360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
628 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
631 // transport-responder act1 bad MAC test
632 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
634 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6b").unwrap().to_vec();
635 assert!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err());
638 // transport-responder act3 bad version test
639 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
641 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
642 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
644 let act_three = hex_bytes("01b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
645 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
648 // transport-responder act3 short read test
649 // Can't actually test this cause process_act_three requires you pass the right length!
652 // transport-responder act3 bad MAC for ciphertext test
653 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
655 let act_one = hex_bytes("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_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
658 let act_three = hex_bytes("00c9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
659 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
662 // transport-responder act3 bad rs test
663 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
665 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
666 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
668 let act_three = hex_bytes("00bfe3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa2235536ad09a8ee351870c2bb7f78b754a26c6cef79a98d25139c856d7efd252c2ae73c").unwrap().to_vec();
669 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
672 // transport-responder act3 bad MAC test
673 let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
675 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
676 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
678 let act_three = hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139bb").unwrap().to_vec();
679 assert!(inbound_peer.process_act_three(&act_three[..]).is_err());
685 fn message_encryption_decryption_test_vectors() {
686 let secp_ctx = Secp256k1::new();
688 // We use the same keys as the initiator and responder test vectors, so we copy those tests
689 // here and use them to encrypt.
690 let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors();
693 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap();
695 let act_two = hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec();
696 assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap()[..], hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]);
698 match outbound_peer.noise_state {
699 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
700 assert_eq!(sk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
702 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
703 assert_eq!(rk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
705 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
711 let mut inbound_peer;
714 // transport-responder successful handshake
715 let our_node_id = SecretKey::from_slice(&secp_ctx, &hex_bytes("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap();
716 let our_ephemeral = SecretKey::from_slice(&secp_ctx, &hex_bytes("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap();
718 inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id);
720 let act_one = hex_bytes("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec();
721 assert_eq!(inbound_peer.process_act_one_with_ephemeral_key(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex_bytes("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]);
723 let act_three = hex_bytes("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec();
724 // test vector doesn't specify the initiator static key, but its the same as the one
725 // from trasport-initiator successful handshake
726 assert_eq!(inbound_peer.process_act_three(&act_three[..]).unwrap().serialize()[..], hex_bytes("034f355bdcb7cc0af728ef3cceb9615d90684bb5b2ca5f859ab0f0b704075871aa").unwrap()[..]);
728 match inbound_peer.noise_state {
729 NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {
730 assert_eq!(sk, hex_bytes("bb9020b8965f4df047e07f955f3c4b88418984aadc5cdb35096b9ea8fa5c3442").unwrap()[..]);
732 assert_eq!(sck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
733 assert_eq!(rk, hex_bytes("969ab31b4d288cedf6218839b27a3e2140827047f2c0f01bf5c04435d43511a9").unwrap()[..]);
735 assert_eq!(rck, hex_bytes("919219dbb2920afa8db80f9a51787a840bcf111ed8d588caf9ab4be716e42b01").unwrap()[..]);
742 let msg = [0x68, 0x65, 0x6c, 0x6c, 0x6f];
743 let res = outbound_peer.encrypt_message(&msg);
744 assert_eq!(res.len(), 5 + 2*16 + 2);
746 let len_header = res[0..2+16].to_vec();
747 assert_eq!(inbound_peer.decrypt_length_header(&len_header[..]).unwrap() as usize, msg.len());
748 assert_eq!(inbound_peer.decrypt_message(&res[2+16..]).unwrap()[..], msg[..]);
751 assert_eq!(res, hex_bytes("cf2b30ddf0cf3f80e7c35a6e6730b59fe802473180f396d88a8fb0db8cbcf25d2f214cf9ea1d95").unwrap());
753 assert_eq!(res, hex_bytes("72887022101f0b6753e0c7de21657d35a4cb2a1f5cde2650528bbc8f837d0f0d7ad833b1a256a1").unwrap());
755 assert_eq!(res, hex_bytes("178cb9d7387190fa34db9c2d50027d21793c9bc2d40b1e14dcf30ebeeeb220f48364f7a4c68bf8").unwrap());
757 assert_eq!(res, hex_bytes("1b186c57d44eb6de4c057c49940d79bb838a145cb528d6e8fd26dbe50a60ca2c104b56b60e45bd").unwrap());
758 } else if i == 1000 {
759 assert_eq!(res, hex_bytes("4a2f3cc3b5e78ddb83dcb426d9863d9d9a723b0337c89dd0b005d89f8d3c05c52b76b29b740f09").unwrap());
760 } else if i == 1001 {
761 assert_eq!(res, hex_bytes("2ecd8c8a5629d0d02ab457a0fdd0f7b90a192cd46be5ecb6ca570bfc5e268338b1a16cf4ef2d36").unwrap());