X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Fpeer_channel_encryptor.rs;h=29fa84505fcefc55a255b842f05fd5eca84bed65;hb=28c9b56113ff1ebb1b505a2c979c55c1626aa06b;hp=da6dc67aba5c4f52ec9e9dcd819aebf131d33084;hpb=e5c988e00c515467e76639b5aac47b02a7f7b4a6;p=rust-lightning diff --git a/lightning/src/ln/peer_channel_encryptor.rs b/lightning/src/ln/peer_channel_encryptor.rs index da6dc67a..29fa8450 100644 --- a/lightning/src/ln/peer_channel_encryptor.rs +++ b/lightning/src/ln/peer_channel_encryptor.rs @@ -25,8 +25,8 @@ use util::crypto::hkdf_extract_expand_twice; use bitcoin::hashes::hex::ToHex; /// Maximum Lightning message data length according to -/// [BOLT-8](https://github.com/lightningnetwork/lightning-rfc/blob/v1.0/08-transport.md#lightning-message-specification) -/// and [BOLT-1](https://github.com/lightningnetwork/lightning-rfc/blob/master/01-messaging.md#lightning-message-format): +/// [BOLT-8](https://github.com/lightning/bolts/blob/v1.0/08-transport.md#lightning-message-specification) +/// and [BOLT-1](https://github.com/lightning/bolts/blob/master/01-messaging.md#lightning-message-format): pub const LN_MAX_MSG_LEN: usize = ::core::u16::MAX as usize; // Must be equal to 65535 // Sha256("Noise_XK_secp256k1_ChaChaPoly_SHA256") @@ -80,7 +80,6 @@ enum NoiseState { } pub struct PeerChannelEncryptor { - secp_ctx: Secp256k1, their_node_id: Option, // filled in for outbound, or inbound after noise_state is Finished noise_state: NoiseState, @@ -88,8 +87,6 @@ pub struct PeerChannelEncryptor { impl PeerChannelEncryptor { pub fn new_outbound(their_node_id: PublicKey, ephemeral_key: SecretKey) -> PeerChannelEncryptor { - let secp_ctx = Secp256k1::signing_only(); - let mut sha = Sha256::engine(); sha.input(&NOISE_H); sha.input(&their_node_id.serialize()[..]); @@ -97,7 +94,6 @@ impl PeerChannelEncryptor { PeerChannelEncryptor { their_node_id: Some(their_node_id), - secp_ctx, noise_state: NoiseState::InProgress { state: NoiseStep::PreActOne, directional_state: DirectionalNoiseState::Outbound { @@ -111,9 +107,7 @@ impl PeerChannelEncryptor { } } - pub fn new_inbound(our_node_secret: &SecretKey) -> PeerChannelEncryptor { - let secp_ctx = Secp256k1::signing_only(); - + pub fn new_inbound(our_node_secret: &SecretKey, secp_ctx: &Secp256k1) -> PeerChannelEncryptor { let mut sha = Sha256::engine(); sha.input(&NOISE_H); let our_node_id = PublicKey::from_secret_key(&secp_ctx, our_node_secret); @@ -122,7 +116,6 @@ impl PeerChannelEncryptor { PeerChannelEncryptor { their_node_id: None, - secp_ctx, noise_state: NoiseState::InProgress { state: NoiseStep::PreActOne, directional_state: DirectionalNoiseState::Inbound { @@ -224,7 +217,7 @@ impl PeerChannelEncryptor { Ok((their_pub, temp_k)) } - pub fn get_act_one(&mut self) -> [u8; 50] { + pub fn get_act_one(&mut self, secp_ctx: &Secp256k1) -> [u8; 50] { match self.noise_state { NoiseState::InProgress { ref mut state, ref directional_state, ref mut bidirectional_state } => match directional_state { @@ -233,7 +226,7 @@ impl PeerChannelEncryptor { panic!("Requested act at wrong step"); } - let (res, _) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &ie, &self.their_node_id.unwrap()); + let (res, _) = PeerChannelEncryptor::outbound_noise_act(secp_ctx, bidirectional_state, &ie, &self.their_node_id.unwrap()); *state = NoiseStep::PostActOne; res }, @@ -243,7 +236,9 @@ impl PeerChannelEncryptor { } } - pub fn process_act_one_with_keys(&mut self, act_one: &[u8], our_node_secret: &SecretKey, our_ephemeral: SecretKey) -> Result<[u8; 50], LightningError> { + pub fn process_act_one_with_keys( + &mut self, act_one: &[u8], our_node_secret: &SecretKey, our_ephemeral: SecretKey, secp_ctx: &Secp256k1) + -> Result<[u8; 50], LightningError> { assert_eq!(act_one.len(), 50); match self.noise_state { @@ -259,7 +254,8 @@ impl PeerChannelEncryptor { re.get_or_insert(our_ephemeral); - let (res, temp_k) = PeerChannelEncryptor::outbound_noise_act(&self.secp_ctx, bidirectional_state, &re.unwrap(), &ie.unwrap()); + let (res, temp_k) = + PeerChannelEncryptor::outbound_noise_act(secp_ctx, bidirectional_state, &re.unwrap(), &ie.unwrap()); *temp_k2 = Some(temp_k); *state = NoiseStep::PostActTwo; Ok(res) @@ -270,7 +266,9 @@ impl PeerChannelEncryptor { } } - pub fn process_act_two(&mut self, act_two: &[u8], our_node_secret: &SecretKey) -> Result<([u8; 66], PublicKey), LightningError> { + pub fn process_act_two( + &mut self, act_two: &[u8], our_node_secret: &SecretKey, secp_ctx: &Secp256k1) + -> Result<([u8; 66], PublicKey), LightningError> { assert_eq!(act_two.len(), 50); let final_hkdf; @@ -286,7 +284,7 @@ impl PeerChannelEncryptor { let (re, temp_k2) = PeerChannelEncryptor::inbound_noise_act(bidirectional_state, act_two, &ie)?; let mut res = [0; 66]; - let our_node_id = PublicKey::from_secret_key(&self.secp_ctx, &our_node_secret); + let our_node_id = PublicKey::from_secret_key(secp_ctx, &our_node_secret); PeerChannelEncryptor::encrypt_with_ad(&mut res[1..50], 1, &temp_k2, &bidirectional_state.h, &our_node_id.serialize()[..]); @@ -474,6 +472,7 @@ mod tests { use super::LN_MAX_MSG_LEN; use bitcoin::secp256k1::{PublicKey,SecretKey}; + use bitcoin::secp256k1::Secp256k1; use hex; @@ -481,9 +480,10 @@ mod tests { fn get_outbound_peer_for_initiator_test_vectors() -> PeerChannelEncryptor { let their_node_id = PublicKey::from_slice(&hex::decode("028d7500dd4c12685d1f568b4c2b5048e8534b873319f3a8daa612b469132ec7f7").unwrap()[..]).unwrap(); + let secp_ctx = Secp256k1::signing_only(); let mut outbound_peer = PeerChannelEncryptor::new_outbound(their_node_id, SecretKey::from_slice(&hex::decode("1212121212121212121212121212121212121212121212121212121212121212").unwrap()[..]).unwrap()); - assert_eq!(outbound_peer.get_act_one()[..], hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap()[..]); + assert_eq!(outbound_peer.get_act_one(&secp_ctx)[..], hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap()[..]); outbound_peer } @@ -491,11 +491,12 @@ mod tests { // transport-responder successful handshake let our_node_id = SecretKey::from_slice(&hex::decode("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap(); let our_ephemeral = SecretKey::from_slice(&hex::decode("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap(); + let secp_ctx = Secp256k1::signing_only(); - let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id); + let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id, &secp_ctx); let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec(); - assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); + assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone(), &secp_ctx).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); let act_three = hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec(); // test vector doesn't specify the initiator static key, but it's the same as the one @@ -520,13 +521,14 @@ mod tests { #[test] fn noise_initiator_test_vectors() { let our_node_id = SecretKey::from_slice(&hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap(); + let secp_ctx = Secp256k1::signing_only(); { // transport-initiator successful handshake let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors(); let act_two = hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec(); - assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap().0[..], hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]); + assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id, &secp_ctx).unwrap().0[..], hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]); match outbound_peer.noise_state { NoiseState::Finished { sk, sn, sck, rk, rn, rck } => { @@ -549,7 +551,7 @@ mod tests { let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors(); let act_two = hex::decode("0102466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec(); - assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err()); + assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id, &secp_ctx).is_err()); } { @@ -557,7 +559,7 @@ mod tests { let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors(); let act_two = hex::decode("0004466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec(); - assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err()); + assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id, &secp_ctx).is_err()); } { @@ -565,7 +567,7 @@ mod tests { let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors(); let act_two = hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730af").unwrap().to_vec(); - assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id).is_err()); + assert!(outbound_peer.process_act_two(&act_two[..], &our_node_id, &secp_ctx).is_err()); } } @@ -573,6 +575,7 @@ mod tests { fn noise_responder_test_vectors() { let our_node_id = SecretKey::from_slice(&hex::decode("2121212121212121212121212121212121212121212121212121212121212121").unwrap()[..]).unwrap(); let our_ephemeral = SecretKey::from_slice(&hex::decode("2222222222222222222222222222222222222222222222222222222222222222").unwrap()[..]).unwrap(); + let secp_ctx = Secp256k1::signing_only(); { let _ = get_inbound_peer_for_test_vectors(); @@ -583,31 +586,31 @@ mod tests { } { // transport-responder act1 bad version test - let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id); + let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id, &secp_ctx); let act_one = hex::decode("01036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec(); - assert!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err()); + assert!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone(), &secp_ctx).is_err()); } { // transport-responder act1 bad key serialization test - let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id); + let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id, &secp_ctx); let act_one =hex::decode("00046360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec(); - assert!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err()); + assert!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone(), &secp_ctx).is_err()); } { // transport-responder act1 bad MAC test - let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id); + let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id, &secp_ctx); let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6b").unwrap().to_vec(); - assert!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).is_err()); + assert!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone(), &secp_ctx).is_err()); } { // transport-responder act3 bad version test - let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id); + let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id, &secp_ctx); let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec(); - assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); + assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone(), &secp_ctx).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); let act_three = hex::decode("01b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec(); assert!(inbound_peer.process_act_three(&act_three[..]).is_err()); @@ -618,30 +621,30 @@ mod tests { } { // transport-responder act3 bad MAC for ciphertext test - let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id); + let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id, &secp_ctx); let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec(); - assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); + assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone(), &secp_ctx).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); let act_three = hex::decode("00c9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap().to_vec(); assert!(inbound_peer.process_act_three(&act_three[..]).is_err()); } { // transport-responder act3 bad rs test - let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id); + let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id, &secp_ctx); let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec(); - assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); + assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone(), &secp_ctx).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); let act_three = hex::decode("00bfe3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa2235536ad09a8ee351870c2bb7f78b754a26c6cef79a98d25139c856d7efd252c2ae73c").unwrap().to_vec(); assert!(inbound_peer.process_act_three(&act_three[..]).is_err()); } { // transport-responder act3 bad MAC test - let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id); + let mut inbound_peer = PeerChannelEncryptor::new_inbound(&our_node_id, &secp_ctx); let act_one = hex::decode("00036360e856310ce5d294e8be33fc807077dc56ac80d95d9cd4ddbd21325eff73f70df6086551151f58b8afe6c195782c6a").unwrap().to_vec(); - assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone()).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); + assert_eq!(inbound_peer.process_act_one_with_keys(&act_one[..], &our_node_id, our_ephemeral.clone(), &secp_ctx).unwrap()[..], hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap()[..]); let act_three = hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139bb").unwrap().to_vec(); assert!(inbound_peer.process_act_three(&act_three[..]).is_err()); @@ -654,12 +657,13 @@ mod tests { // We use the same keys as the initiator and responder test vectors, so we copy those tests // here and use them to encrypt. let mut outbound_peer = get_outbound_peer_for_initiator_test_vectors(); + let secp_ctx = Secp256k1::signing_only(); { let our_node_id = SecretKey::from_slice(&hex::decode("1111111111111111111111111111111111111111111111111111111111111111").unwrap()[..]).unwrap(); let act_two = hex::decode("0002466d7fcae563e5cb09a0d1870bb580344804617879a14949cf22285f1bae3f276e2470b93aac583c9ef6eafca3f730ae").unwrap().to_vec(); - assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id).unwrap().0[..], hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]); + assert_eq!(outbound_peer.process_act_two(&act_two[..], &our_node_id, &secp_ctx).unwrap().0[..], hex::decode("00b9e3a702e93e3a9948c2ed6e5fd7590a6e1c3a0344cfc9d5b57357049aa22355361aa02e55a8fc28fef5bd6d71ad0c38228dc68b1c466263b47fdf31e560e139ba").unwrap()[..]); match outbound_peer.noise_state { NoiseState::Finished { sk, sn, sck, rk, rn, rck } => {