T1.5: Migrate emit/parse sites to v2 wire format

crates/wzp-crypto/src/anti_replay.rs

@@ -156,7 +156,11 @@ mod tests {
     fn sequential_accepted() {
         let mut w = AntiReplayWindow::new();
         for i in 0..200 {
-            assert!(w.check_and_update(i).is_ok(), "seq {} should be accepted", i);
+            assert!(
+                w.check_and_update(i).is_ok(),
+                "seq {} should be accepted",
+                i
+            );
         }
     }
 

crates/wzp-crypto/src/handshake.rs

@@ -9,8 +9,8 @@ use ed25519_dalek::{Signer, SigningKey, Verifier, VerifyingKey};
 use hkdf::Hkdf;
 use rand::rngs::OsRng;
 use sha2::{Digest, Sha256};
-use x25519_dalek::{PublicKey as X25519PublicKey, StaticSecret};
 use wzp_proto::{CryptoError, CryptoSession, KeyExchange};
+use x25519_dalek::{PublicKey as X25519PublicKey, StaticSecret};
 
 use crate::session::ChaChaSession;
 
@@ -95,12 +95,11 @@ impl KeyExchange for WarzoneKeyExchange {
         &self,
         peer_ephemeral_pub: &[u8; 32],
     ) -> Result<Box<dyn CryptoSession>, CryptoError> {
-        let secret = self
-            .ephemeral_secret
-            .as_ref()
-            .ok_or_else(|| {
-                CryptoError::Internal("no ephemeral key generated; call generate_ephemeral first".into())
-            })?;
+        let secret = self.ephemeral_secret.as_ref().ok_or_else(|| {
+            CryptoError::Internal(
+                "no ephemeral key generated; call generate_ephemeral first".into(),
+            )
+        })?;
 
         let peer_public = X25519PublicKey::from(*peer_ephemeral_pub);
         // Use diffie_hellman with a clone of the StaticSecret

crates/wzp-crypto/src/identity.rs

@@ -79,7 +79,9 @@ impl Seed {
     ///
     /// Mirrors: `warzone-protocol::mnemonic::mnemonic_to_seed`
     pub fn from_mnemonic(words: &str) -> Result<Self, String> {
-        let mnemonic: bip39::Mnemonic = words.parse().map_err(|e| format!("invalid mnemonic: {e}"))?;
+        let mnemonic: bip39::Mnemonic = words
+            .parse()
+            .map_err(|e| format!("invalid mnemonic: {e}"))?;
         let entropy = mnemonic.to_entropy();
         if entropy.len() != 32 {
             return Err(format!("expected 32 bytes entropy, got {}", entropy.len()));

crates/wzp-crypto/src/lib.rs

@@ -16,8 +16,8 @@ pub mod session;
 
 pub use anti_replay::AntiReplayWindow;
 pub use handshake::WarzoneKeyExchange;
-pub use identity::{hash_room_name, Fingerprint, IdentityKeyPair, PublicIdentity, Seed};
-pub use nonce::{build_nonce, Direction};
+pub use identity::{Fingerprint, IdentityKeyPair, PublicIdentity, Seed, hash_room_name};
+pub use nonce::{Direction, build_nonce};
 pub use rekey::RekeyManager;
 pub use session::ChaChaSession;
 

crates/wzp-crypto/src/session.rs

@@ -5,9 +5,9 @@
 
 use chacha20poly1305::aead::Aead;
 use chacha20poly1305::{ChaCha20Poly1305, KeyInit, Nonce};
-use x25519_dalek::{PublicKey, StaticSecret};
 use rand::rngs::OsRng;
 use wzp_proto::{CryptoError, CryptoSession};
+use x25519_dalek::{PublicKey, StaticSecret};
 
 use crate::nonce::{self, Direction};
 use crate::rekey::RekeyManager;
@@ -135,7 +135,9 @@ impl CryptoSession for ChaChaSession {
             .ok_or_else(|| CryptoError::RekeyFailed("no pending rekey".into()))?;
 
         let total_packets = self.send_seq as u64 + self.recv_seq as u64;
-        let new_key = self.rekey_mgr.perform_rekey(peer_ephemeral_pub, secret, total_packets);
+        let new_key = self
+            .rekey_mgr
+            .perform_rekey(peer_ephemeral_pub, secret, total_packets);
         self.install_key(new_key);
 
         // Reset sequence counters after rekey for nonce uniqueness