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use super::InitiatorHandshake;
use super::MAX_MESSAGE_LEN;
use super::NOISE_CHANNEL_SUITE;
use super::NoiseChannelError;
use super::NoiseChannelIdentity;
use super::NoiseChannelPublicKey;
use super::PendingResponderHandshake;
use super::noise_channel_prologue;
#[test]
fn hybrid_ik_roundtrip_authenticates_both_endpoints() {
let initiator = NoiseChannelIdentity::generate().expect("generate initiator identity");
let responder = NoiseChannelIdentity::generate().expect("generate responder identity");
let prologue = noise_channel_prologue("env-1", "registration-1", "stream-1");
let authorization = b"harness-key-authorization";
let (initiator_handshake, request) = InitiatorHandshake::start(
&initiator,
&responder.public_key(),
&prologue,
authorization,
)
.expect("start initiator handshake");
let responder_handshake =
PendingResponderHandshake::read_request(&responder, &prologue, &request)
.expect("read responder handshake");
assert_eq!(
&responder_handshake.initiator_public_key,
&initiator.public_key()
);
assert_eq!(responder_handshake.payload.as_slice(), authorization);
let (mut responder_transport, response) = responder_handshake
.complete()
.expect("complete responder handshake");
let mut initiator_transport = initiator_handshake
.finish(&response)
.expect("complete initiator handshake");
let request_ciphertext = initiator_transport
.encrypt(b"request")
.expect("encrypt request");
assert_ne!(request_ciphertext, b"request");
assert_eq!(
responder_transport
.decrypt(&request_ciphertext)
.expect("decrypt request"),
b"request"
);
let response_ciphertext = responder_transport
.encrypt(b"response")
.expect("encrypt response");
assert_ne!(response_ciphertext, b"response");
assert_eq!(
initiator_transport
.decrypt(&response_ciphertext)
.expect("decrypt response"),
b"response"
);
}
#[test]
fn initiator_rejects_wrong_responder_key() {
let initiator = NoiseChannelIdentity::generate().expect("generate initiator identity");
let expected_responder = NoiseChannelIdentity::generate().expect("generate expected identity");
let actual_responder = NoiseChannelIdentity::generate().expect("generate actual identity");
let prologue = noise_channel_prologue("env-1", "registration-1", "stream-1");
let (_initiator_handshake, request) = InitiatorHandshake::start(
&initiator,
&expected_responder.public_key(),
&prologue,
b"authorization",
)
.expect("start initiator handshake");
assert!(
PendingResponderHandshake::read_request(&actual_responder, &prologue, &request).is_err()
);
}
#[test]
fn responder_rejects_mismatched_prologue() {
let initiator = NoiseChannelIdentity::generate().expect("generate initiator identity");
let responder = NoiseChannelIdentity::generate().expect("generate responder identity");
let initiator_prologue = noise_channel_prologue("env-1", "registration-1", "stream-1");
let responder_prologue = noise_channel_prologue("env-1", "registration-1", "stream-2");
let (_initiator_handshake, request) = InitiatorHandshake::start(
&initiator,
&responder.public_key(),
&initiator_prologue,
b"authorization",
)
.expect("start initiator handshake");
assert!(
PendingResponderHandshake::read_request(&responder, &responder_prologue, &request).is_err()
);
}
#[test]
fn prologue_encoding_is_stable_and_unambiguous() {
let prologue = noise_channel_prologue("env-1", "registration-1", "stream-1");
assert_eq!(
prologue,
b"\x00\x00\x00\x00\x00\x00\x00\x20codex-exec-server-relay-noise/v1\
\x00\x00\x00\x00\x00\x00\x00\x05env-1\
\x00\x00\x00\x00\x00\x00\x00\x0eregistration-1\
\x00\x00\x00\x00\x00\x00\x00\x08stream-1"
.to_vec()
);
}
#[test]
fn transport_rejects_tampered_ciphertext() {
let initiator = NoiseChannelIdentity::generate().expect("generate initiator identity");
let responder = NoiseChannelIdentity::generate().expect("generate responder identity");
let prologue = noise_channel_prologue("env-1", "registration-1", "stream-1");
let (initiator_handshake, request) = InitiatorHandshake::start(
&initiator,
&responder.public_key(),
&prologue,
b"authorization",
)
.expect("start initiator handshake");
let responder_handshake =
PendingResponderHandshake::read_request(&responder, &prologue, &request)
.expect("read responder handshake");
let (mut responder_transport, response) = responder_handshake
.complete()
.expect("complete responder handshake");
let mut initiator_transport = initiator_handshake
.finish(&response)
.expect("complete initiator handshake");
let mut ciphertext = initiator_transport
.encrypt(b"request")
.expect("encrypt request");
ciphertext[0] ^= 1;
assert!(responder_transport.decrypt(&ciphertext).is_err());
}
#[test]
fn transport_rejects_replayed_ciphertext() {
let initiator = NoiseChannelIdentity::generate().expect("generate initiator identity");
let responder = NoiseChannelIdentity::generate().expect("generate responder identity");
let prologue = noise_channel_prologue("env-1", "registration-1", "stream-1");
let (initiator_handshake, request) = InitiatorHandshake::start(
&initiator,
&responder.public_key(),
&prologue,
b"authorization",
)
.expect("start initiator handshake");
let responder_handshake =
PendingResponderHandshake::read_request(&responder, &prologue, &request)
.expect("read responder handshake");
let (mut responder_transport, response) = responder_handshake
.complete()
.expect("complete responder handshake");
let mut initiator_transport = initiator_handshake
.finish(&response)
.expect("complete initiator handshake");
let ciphertext = initiator_transport
.encrypt(b"request")
.expect("encrypt request");
assert_eq!(
responder_transport
.decrypt(&ciphertext)
.expect("decrypt request"),
b"request"
);
assert!(matches!(
responder_transport.decrypt(&ciphertext),
Err(NoiseChannelError::Transport(_))
));
}
#[test]
fn public_key_validation_rejects_unknown_suite() {
let key = NoiseChannelIdentity::generate()
.expect("generate identity")
.public_key();
let json = serde_json::to_value(key).expect("serialize key");
let mut object = json.as_object().expect("key object").clone();
object.insert("suite".to_string(), serde_json::json!("unknown"));
let key: NoiseChannelPublicKey =
serde_json::from_value(serde_json::Value::Object(object)).expect("deserialize key");
let initiator = NoiseChannelIdentity::generate().expect("generate initiator identity");
assert!(InitiatorHandshake::start(&initiator, &key, b"prologue", b"").is_err());
}
#[test]
fn public_key_serializes_with_expected_suite() {
let key = NoiseChannelIdentity::generate()
.expect("generate identity")
.public_key();
let json = serde_json::to_value(key).expect("serialize key");
assert_eq!(json["suite"], NOISE_CHANNEL_SUITE);
}
#[test]
fn initiator_rejects_oversized_handshake_payload() {
let initiator = NoiseChannelIdentity::generate().expect("generate initiator identity");
let responder = NoiseChannelIdentity::generate().expect("generate responder identity");
let payload = vec![0; MAX_MESSAGE_LEN];
let result =
InitiatorHandshake::start(&initiator, &responder.public_key(), b"prologue", &payload);
assert!(matches!(
result,
Err(NoiseChannelError::InvalidMessage(
"handshake payload is too large"
))
));
}
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