Skip to content

Commit 32a0113

Browse files
jbesraajbesraa
committed
Fix indent in message_signing.rs 
1 parent b2d3b94 commit 32a0113

File tree

1 file changed

+92
-91
lines changed

1 file changed

+92
-91
lines changed

‎lightning/src/util/message_signing.rs‎

Lines changed: 92 additions & 91 deletions
Original file line numberDiff line numberDiff line change
@@ -29,118 +29,119 @@ use bitcoin::secp256k1::{Error, Message, PublicKey, Secp256k1, SecretKey};
2929
static LN_MESSAGE_PREFIX: &[u8] = b"Lightning Signed Message:";
3030

3131
fn sigrec_encode(sig_rec: RecoverableSignature) -> Vec<u8> {
32-
let (rid, rsig) = sig_rec.serialize_compact();
33-
let prefix = rid.to_i32() as u8 + 31;
32+
let (rid, rsig) = sig_rec.serialize_compact();
33+
let prefix = rid.to_i32() as u8 + 31;
3434

35-
[&[prefix], &rsig[..]].concat()
35+
[&[prefix], &rsig[..]].concat()
3636
}
3737

3838
fn sigrec_decode(sig_rec: Vec<u8>) -> Result<RecoverableSignature, Error> {
39-
// Signature must be 64 + 1 bytes long (compact signature + recovery id)
40-
if sig_rec.len() != 65 {
41-
return Err(Error::InvalidSignature);
42-
}
43-
44-
let rsig = &sig_rec[1..];
45-
let rid = sig_rec[0] as i32 - 31;
46-
47-
match RecoveryId::from_i32(rid) {
48-
Ok(x) => RecoverableSignature::from_compact(rsig, x),
49-
Err(e) => Err(e)
50-
}
39+
// Signature must be 64 + 1 bytes long (compact signature + recovery id)
40+
if sig_rec.len() != 65 {
41+
return Err(Error::InvalidSignature);
42+
}
43+
44+
let rsig = &sig_rec[1..];
45+
let rid = sig_rec[0] as i32 - 31;
46+
47+
match RecoveryId::from_i32(rid) {
48+
Ok(x) => RecoverableSignature::from_compact(rsig, x),
49+
Err(e) => Err(e)
50+
}
5151
}
5252

5353
/// Creates a digital signature of a message given a SecretKey, like the node's secret.
5454
/// A receiver knowing the PublicKey (e.g. the node's id) and the message can be sure that the signature was generated by the caller.
5555
/// Signatures are EC recoverable, meaning that given the message and the signature the PublicKey of the signer can be extracted.
5656
pub fn sign(msg: &[u8], sk: &SecretKey) -> Result<String, Error> {
57-
let secp_ctx = Secp256k1::signing_only();
58-
let msg_hash = sha256d::Hash::hash(&[LN_MESSAGE_PREFIX, msg].concat());
57+
let secp_ctx = Secp256k1::signing_only();
58+
let msg_hash = sha256d::Hash::hash(&[LN_MESSAGE_PREFIX, msg].concat());
5959

60-
let sig = secp_ctx.sign_ecdsa_recoverable(&Message::from_slice(&msg_hash)?, sk);
61-
Ok(base32::Alphabet::ZBase32.encode(&sigrec_encode(sig)))
60+
let sig = secp_ctx.sign_ecdsa_recoverable(&Message::from_slice(&msg_hash)?, sk);
61+
Ok(base32::Alphabet::ZBase32.encode(&sigrec_encode(sig)))
6262
}
6363

6464
/// Recovers the PublicKey of the signer of the message given the message and the signature.
6565
pub fn recover_pk(msg: &[u8], sig: &str) -> Result<PublicKey, Error> {
66-
let secp_ctx = Secp256k1::verification_only();
67-
let msg_hash = sha256d::Hash::hash(&[LN_MESSAGE_PREFIX, msg].concat());
68-
69-
match base32::Alphabet::ZBase32.decode(&sig) {
70-
Ok(sig_rec) => {
71-
match sigrec_decode(sig_rec) {
72-
Ok(sig) => secp_ctx.recover_ecdsa(&Message::from_slice(&msg_hash)?, &sig),
73-
Err(e) => Err(e)
74-
}
75-
},
76-
Err(_) => Err(Error::InvalidSignature)
77-
}
66+
let secp_ctx = Secp256k1::verification_only();
67+
let msg_hash = sha256d::Hash::hash(&[LN_MESSAGE_PREFIX, msg].concat());
68+
69+
match base32::Alphabet::ZBase32.decode(&sig) {
70+
Ok(sig_rec) => {
71+
match sigrec_decode(sig_rec) {
72+
Ok(sig) => secp_ctx.recover_ecdsa(&Message::from_slice(&msg_hash)?, &sig),
73+
Err(e) => Err(e)
74+
}
75+
},
76+
Err(_) => Err(Error::InvalidSignature)
77+
}
7878
}
7979

8080
/// Verifies a message was signed by a PrivateKey that derives to a given PublicKey, given a message, a signature,
8181
/// and the PublicKey.
8282
pub fn verify(msg: &[u8], sig: &str, pk: &PublicKey) -> bool {
83-
match recover_pk(msg, sig) {
84-
Ok(x) => x == *pk,
85-
Err(_) => false
86-
}
83+
match recover_pk(msg, sig) {
84+
Ok(x) => x == *pk,
85+
Err(_) => false
86+
}
8787
}
8888

8989
#[cfg(test)]
9090
mod test {
91-
use core::str::FromStr;
92-
use crate::util::message_signing::{sign, recover_pk, verify};
93-
use bitcoin::secp256k1::ONE_KEY;
94-
use bitcoin::secp256k1::{PublicKey, Secp256k1};
95-
96-
#[test]
97-
fn test_sign() {
98-
let message = "test message";
99-
let zbase32_sig = sign(message.as_bytes(), &ONE_KEY);
100-
101-
assert_eq!(zbase32_sig.unwrap(), "d9tibmnic9t5y41hg7hkakdcra94akas9ku3rmmj4ag9mritc8ok4p5qzefs78c9pqfhpuftqqzhydbdwfg7u6w6wdxcqpqn4sj4e73e")
102-
}
103-
104-
#[test]
105-
fn test_recover_pk() {
106-
let message = "test message";
107-
let sig = "d9tibmnic9t5y41hg7hkakdcra94akas9ku3rmmj4ag9mritc8ok4p5qzefs78c9pqfhpuftqqzhydbdwfg7u6w6wdxcqpqn4sj4e73e";
108-
let pk = recover_pk(message.as_bytes(), sig);
109-
110-
assert_eq!(pk.unwrap(), PublicKey::from_secret_key(&Secp256k1::signing_only(), &ONE_KEY))
111-
}
112-
113-
#[test]
114-
fn test_verify() {
115-
let message = "another message";
116-
let sig = sign(message.as_bytes(), &ONE_KEY).unwrap();
117-
let pk = PublicKey::from_secret_key(&Secp256k1::signing_only(), &ONE_KEY);
118-
119-
assert!(verify(message.as_bytes(), &sig, &pk))
120-
}
121-
122-
#[test]
123-
fn test_verify_ground_truth_ish() {
124-
// There are no standard tests vectors for Sign/Verify, using the same tests vectors as c-lightning to see if they are compatible.
125-
// Taken from https://github.com/ElementsProject/lightning/blob/1275af6fbb02460c8eb2f00990bb0ef9179ce8f3/tests/test_misc.py#L1925-L1938
126-
127-
let corpus = [
128-
["@bitconner",
129-
"is this compatible?",
130-
"rbgfioj114mh48d8egqx8o9qxqw4fmhe8jbeeabdioxnjk8z3t1ma1hu1fiswpakgucwwzwo6ofycffbsqusqdimugbh41n1g698hr9t",
131-
"02b80cabdf82638aac86948e4c06e82064f547768dcef977677b9ea931ea75bab5"],
132-
["@duck1123",
133-
"hi",
134-
"rnrphcjswusbacjnmmmrynh9pqip7sy5cx695h6mfu64iac6qmcmsd8xnsyczwmpqp9shqkth3h4jmkgyqu5z47jfn1q7gpxtaqpx4xg",
135-
"02de60d194e1ca5947b59fe8e2efd6aadeabfb67f2e89e13ae1a799c1e08e4a43b"],
136-
["@jochemin",
137-
"hi",
138-
"ry8bbsopmduhxy3dr5d9ekfeabdpimfx95kagdem7914wtca79jwamtbw4rxh69hg7n6x9ty8cqk33knbxaqftgxsfsaeprxkn1k48p3",
139-
"022b8ece90ee891cbcdac0c1cc6af46b73c47212d8defbce80265ac81a6b794931"],
140-
];
141-
142-
for c in &corpus {
143-
assert!(verify(c[1].as_bytes(), c[2], &PublicKey::from_str(c[3]).unwrap()))
144-
}
145-
}
146-
}
91+
use core::str::FromStr;
92+
use crate::util::message_signing::{sign, recover_pk, verify};
93+
use bitcoin::secp256k1::ONE_KEY;
94+
use bitcoin::secp256k1::{PublicKey, Secp256k1};
95+
96+
#[test]
97+
fn test_sign() {
98+
let message = "test message";
99+
let zbase32_sig = sign(message.as_bytes(), &ONE_KEY);
100+
101+
assert_eq!(zbase32_sig.unwrap(), "d9tibmnic9t5y41hg7hkakdcra94akas9ku3rmmj4ag9mritc8ok4p5qzefs78c9pqfhpuftqqzhydbdwfg7u6w6wdxcqpqn4sj4e73e")
102+
}
103+
104+
#[test]
105+
fn test_recover_pk() {
106+
let message = "test message";
107+
let sig = "d9tibmnic9t5y41hg7hkakdcra94akas9ku3rmmj4ag9mritc8ok4p5qzefs78c9pqfhpuftqqzhydbdwfg7u6w6wdxcqpqn4sj4e73e";
108+
let pk = recover_pk(message.as_bytes(), sig);
109+
110+
assert_eq!(pk.unwrap(), PublicKey::from_secret_key(&Secp256k1::signing_only(), &ONE_KEY))
111+
}
112+
113+
#[test]
114+
fn test_verify() {
115+
let message = "another message";
116+
let sig = sign(message.as_bytes(), &ONE_KEY).unwrap();
117+
let pk = PublicKey::from_secret_key(&Secp256k1::signing_only(), &ONE_KEY);
118+
119+
assert!(verify(message.as_bytes(), &sig, &pk))
120+
}
121+
122+
#[test]
123+
fn test_verify_ground_truth_ish() {
124+
// There are no standard tests vectors for Sign/Verify, using the same tests vectors as c-lightning to see if they are compatible.
125+
// Taken from https://github.com/ElementsProject/lightning/blob/1275af6fbb02460c8eb2f00990bb0ef9179ce8f3/tests/test_misc.py#L1925-L1938
126+
127+
let corpus = [
128+
["@bitconner",
129+
"is this compatible?",
130+
"rbgfioj114mh48d8egqx8o9qxqw4fmhe8jbeeabdioxnjk8z3t1ma1hu1fiswpakgucwwzwo6ofycffbsqusqdimugbh41n1g698hr9t",
131+
"02b80cabdf82638aac86948e4c06e82064f547768dcef977677b9ea931ea75bab5"],
132+
["@duck1123",
133+
"hi",
134+
"rnrphcjswusbacjnmmmrynh9pqip7sy5cx695h6mfu64iac6qmcmsd8xnsyczwmpqp9shqkth3h4jmkgyqu5z47jfn1q7gpxtaqpx4xg",
135+
"02de60d194e1ca5947b59fe8e2efd6aadeabfb67f2e89e13ae1a799c1e08e4a43b"],
136+
["@jochemin",
137+
"hi",
138+
"ry8bbsopmduhxy3dr5d9ekfeabdpimfx95kagdem7914wtca79jwamtbw4rxh69hg7n6x9ty8cqk33knbxaqftgxsfsaeprxkn1k48p3",
139+
"022b8ece90ee891cbcdac0c1cc6af46b73c47212d8defbce80265ac81a6b794931"],
140+
];
141+
142+
for c in &corpus {
143+
assert!(verify(c[1].as_bytes(), c[2], &PublicKey::from_str(c[3]).unwrap()))
144+
}
145+
}
146+
}
147+

0 commit comments

Comments
 (0)