Fix signer and add e2e tls13 test

boring-rustls-provider/Cargo.toml

@@ -33,6 +33,9 @@ webpki = { package = "rustls-webpki", version = "0.102.0-alpha.1", default-featu
 
 [dev-dependencies]
 hex-literal = "0.4"
+rcgen = "0.11.3"
+tokio = { version = "1.34", features = ["macros", "rt", "net", "io-util", "io-std"] }
+tokio-rustls = "0.25.0-alpha.2"
 
 
 

boring-rustls-provider/src/lib.rs

@@ -15,11 +15,11 @@ mod hmac;
 mod kx;
 #[cfg(feature = "tls12")]
 mod prf;
-mod sign;
+pub mod sign;
 #[cfg(feature = "tls12")]
-mod tls12;
-mod tls13;
-mod verify;
+pub mod tls12;
+pub mod tls13;
+pub mod verify;
 
 /// The boringssl-based Rustls Crypto provider
 pub static PROVIDER: &'static dyn CryptoProvider = &Provider;

boring-rustls-provider/src/sign.rs

@@ -174,17 +174,21 @@ impl BoringSigner {
 
 impl rustls::sign::Signer for BoringSigner {
     fn sign(&self, message: &[u8]) -> Result<Vec<u8>, rustls::Error> {
-        let signer = self.get_signer();
-        let mut msg_with_sig =
-            Vec::<u8>::with_capacity(message.len() + boring_sys::EVP_MAX_MD_SIZE as usize);
-        msg_with_sig.extend_from_slice(message);
-        msg_with_sig.extend_from_slice(&[0u8; boring_sys::EVP_MAX_MD_SIZE as usize]);
-
-        let toatl_len = signer
-            .sign(&mut msg_with_sig[..])
-            .map_err(|e| log_and_map("sign", e, rustls::Error::General("failed signing".into())))?;
-        msg_with_sig.truncate(toatl_len);
-        Ok(msg_with_sig)
+        let mut signer = self.get_signer();
+        let max_sig_len = signer
+            .len()
+            .map_err(|e| log_and_map("len", e, rustls::Error::General("failed signing".into())))?;
+        let mut sig = vec![0u8; max_sig_len];
+
+        let sig_len = signer.sign_oneshot(&mut sig[..], message).map_err(|e| {
+            log_and_map(
+                "sign_oneshot",
+                e,
+                rustls::Error::General("failed signing".into()),
+            )
+        })?;
+        sig.truncate(sig_len);
+        Ok(sig)
     }
 
     fn scheme(&self) -> rustls::SignatureScheme {

boring-rustls-provider/tests/e2e.rs

@@ -0,0 +1,129 @@
+use std::sync::Arc;
+use tokio::{
+    io::{AsyncReadExt, AsyncWriteExt},
+    net::TcpStream,
+};
+
+use boring_rustls_provider::{tls13, PROVIDER};
+use rustls::{version::TLS13, ServerConfig, SupportedCipherSuite};
+use rustls_pki_types::{CertificateDer, PrivateKeyDer, PrivatePkcs8KeyDer};
+use tokio::net::TcpListener;
+use tokio_rustls::{TlsAcceptor, TlsConnector};
+
+#[tokio::test]
+async fn test_tls13_crypto() {
+    let pki = TestPki::new(&rcgen::PKCS_ECDSA_P256_SHA256);
+
+    let root_store = pki.client_root_store();
+    let server_config = pki.server_config();
+
+    let ciphers = [
+        SupportedCipherSuite::Tls13(&tls13::AES_128_GCM_SHA256),
+        SupportedCipherSuite::Tls13(&tls13::AES_256_GCM_SHA384),
+    ];
+
+    for cipher in ciphers {
+        let config = rustls::ClientConfig::builder_with_provider(PROVIDER)
+            .with_cipher_suites(&[cipher])
+            .with_safe_default_kx_groups()
+            .with_protocol_versions(&[&TLS13])
+            .unwrap()
+            .with_root_certificates(root_store.clone())
+            .with_no_client_auth();
+
+        let listener = new_listener().await;
+        let addr = listener.local_addr().unwrap();
+        tokio::spawn(spawn_echo_server(listener, server_config.clone()));
+
+        let connector = TlsConnector::from(Arc::new(config));
+        let stream = TcpStream::connect(&addr).await.unwrap();
+
+        let mut stream = connector
+            .connect(rustls::ServerName::try_from("localhost").unwrap(), stream)
+            .await
+            .unwrap();
+
+        stream.write_all(b"HELLO").await.unwrap();
+        let mut buf = Vec::new();
+        let bytes = stream.read_to_end(&mut buf).await.unwrap();
+        assert_eq!(&buf[..bytes], b"HELLO");
+    }
+}
+
+async fn new_listener() -> TcpListener {
+    TcpListener::bind("localhost:0").await.unwrap()
+}
+
+async fn spawn_echo_server(listener: TcpListener, config: Arc<ServerConfig>) {
+    let acceptor = TlsAcceptor::from(config);
+
+    let (stream, _) = listener.accept().await.unwrap();
+    let acceptor = acceptor.clone();
+    let mut stream = acceptor.accept(stream).await.unwrap();
+
+    let mut buf = vec![0u8; 5];
+    let bytes = stream.read_exact(buf.as_mut_slice()).await.unwrap();
+    stream.write_all(&buf[..bytes]).await.unwrap();
+    stream.flush().await.unwrap();
+    stream.shutdown().await.unwrap();
+}
+
+struct TestPki {
+    ca_cert_der: CertificateDer<'static>,
+    server_cert_der: CertificateDer<'static>,
+    server_key_der: PrivateKeyDer<'static>,
+}
+
+impl TestPki {
+    fn new(alg: &'static rcgen::SignatureAlgorithm) -> Self {
+        let mut ca_params = rcgen::CertificateParams::new(Vec::new());
+        ca_params
+            .distinguished_name
+            .push(rcgen::DnType::OrganizationName, "Provider Server Example");
+        ca_params
+            .distinguished_name
+            .push(rcgen::DnType::CommonName, "Example CA");
+        ca_params.is_ca = rcgen::IsCa::Ca(rcgen::BasicConstraints::Unconstrained);
+        ca_params.key_usages = vec![
+            rcgen::KeyUsagePurpose::KeyCertSign,
+            rcgen::KeyUsagePurpose::DigitalSignature,
+        ];
+        ca_params.alg = alg;
+        let ca_cert = rcgen::Certificate::from_params(ca_params).unwrap();
+
+        let ca_cert_der = CertificateDer::from(ca_cert.serialize_der().unwrap());
+        // Create a server end entity cert issued by the CA.
+        let mut server_ee_params = rcgen::CertificateParams::new(vec!["localhost".to_string()]);
+        server_ee_params.is_ca = rcgen::IsCa::NoCa;
+        server_ee_params.extended_key_usages = vec![rcgen::ExtendedKeyUsagePurpose::ServerAuth];
+        server_ee_params.alg = alg;
+        let server_cert = rcgen::Certificate::from_params(server_ee_params).unwrap();
+        let server_cert_der =
+            CertificateDer::from(server_cert.serialize_der_with_signer(&ca_cert).unwrap());
+        let server_key_der =
+            PrivatePkcs8KeyDer::from(server_cert.serialize_private_key_der()).into();
+        Self {
+            ca_cert_der,
+            server_cert_der,
+            server_key_der,
+        }
+    }
+
+    fn server_config(self) -> Arc<ServerConfig> {
+        let mut server_config = ServerConfig::builder_with_provider(PROVIDER)
+            .with_safe_defaults()
+            .with_no_client_auth()
+            .with_single_cert(vec![self.server_cert_der], self.server_key_der)
+            .unwrap();
+
+        server_config.key_log = Arc::new(rustls::KeyLogFile::new());
+
+        Arc::new(server_config)
+    }
+
+    fn client_root_store(&self) -> rustls::RootCertStore {
+        let mut root_store = rustls::RootCertStore::empty();
+        root_store.add(self.ca_cert_der.clone()).unwrap();
+        root_store
+    }
+}