Follow ngtcp2 API changes and use libngtcp2_crypto_openssl

configure.ac

@@ -461,6 +461,15 @@ if test "x${have_libngtcp2}" = "xno"; then
   AC_MSG_NOTICE($LIBNGTCP2_PKG_ERRORS)
 fi
 
+# ngtcp2_crypto_openssl (for src)
+PKG_CHECK_MODULES([LIBNGTCP2_CRYPTO_OPENSSL],
+                  [libngtcp2_crypto_openssl >= 0.0.0],
+                  [have_libngtcp2_crypto_openssl=yes],
+                  [have_libngtcp2_crypto_openssl=no])
+if test "x${have_libngtcp2_crypto_openssl}" = "xno"; then
+  AC_MSG_NOTICE($LIBNGTCP2_CRYPTO_OPENSSL_PKG_ERRORS)
+fi
+
 # nghttp3 (for src)
 PKG_CHECK_MODULES([LIBNGHTTP3], [libnghttp3 >= 0.0.0], [have_libnghttp3=yes],
                   [have_libnghttp3=no])
@@ -1026,6 +1035,7 @@ AC_MSG_NOTICE([summary of build options:
       Libev:          ${have_libev} (CFLAGS='${LIBEV_CFLAGS}' LIBS='${LIBEV_LIBS}')
       Libc-ares:      ${have_libcares} (CFLAGS='${LIBCARES_CFLAGS}' LIBS='${LIBCARES_LIBS}')
       libngtcp2:      ${have_libngtcp2} (CFLAGS='${LIBNGTCP2_CFLAGS}' LIBS='${LIBNGTCP2_LIBS}')
+      libngtcp2_crypto_openssl: ${have_libngtcp2_crypto_openssl} (CFLAGS='${LIBNGTCP2_CRYPTO_OPENSSL_CFLAGS}' LIBS='${LIBNGTCP2_CRYPTO_OPENSSL_LIBS}')
       libnghttp3:     ${have_libnghttp3} (CFLAGS='${LIBNGHTTP3_CFLAGS}' LIBS='${LIBNGHTTP3_LIBS}')
       Libevent(SSL):  ${have_libevent_openssl} (CFLAGS='${LIBEVENT_OPENSSL_CFLAGS}' LIBS='${LIBEVENT_OPENSSL_LIBS}')
       Jansson:        ${have_jansson} (CFLAGS='${JANSSON_CFLAGS}' LIBS='${JANSSON_LIBS}')

src/Makefile.am

@@ -47,6 +47,7 @@ AM_CPPFLAGS = \
 	@OPENSSL_CFLAGS@ \
 	@LIBCARES_CFLAGS@ \
 	@LIBNGHTTP3_CFLAGS@ \
+	@LIBNGTCP2_CRYPTO_OPENSSL_CFLAGS@ \
 	@LIBNGTCP2_CFLAGS@ \
 	@JANSSON_CFLAGS@ \
 	@ZLIB_CFLAGS@ \
@@ -62,6 +63,7 @@ LDADD = $(top_builddir)/lib/libnghttp2.la \
 	@OPENSSL_LIBS@ \
 	@LIBCARES_LIBS@ \
 	@LIBNGHTTP3_LIBS@ \
+	@LIBNGTCP2_CRYPTO_OPENSSL_LIBS@ \
 	@LIBNGTCP2_LIBS@ \
 	@SYSTEMD_LIBS@ \
 	@JANSSON_LIBS@ \

src/h2load.cc

@@ -2250,6 +2250,8 @@ Options:
 }
 } // namespace
 
+extern ngtcp2_crypto_ctx in_crypto_ctx;
+
 int main(int argc, char **argv) {
   tls::libssl_init();
 
@@ -2907,6 +2909,8 @@ int main(int argc, char **argv) {
     exit(EXIT_FAILURE);
   }
 
+  ngtcp2_crypto_ctx_initial(&in_crypto_ctx);
+
   resolve_host();
 
   std::cout << "starting benchmark..." << std::endl;

src/h2load.h

@@ -46,6 +46,7 @@
 #include <nghttp2/nghttp2.h>
 
 #include <ngtcp2/ngtcp2.h>
+#include <ngtcp2/ngtcp2_crypto.h>
 
 #include <ev.h>
 
@@ -331,6 +332,7 @@ struct Client {
     ngtcp2_crypto_level rx_crypto_level;
     std::vector<uint8_t> server_handshake;
     size_t server_handshake_nread;
+    ngtcp2_crypto_ctx crypto_ctx;
     // Client never send CRYPTO in Short packet.
     std::array<Crypto, 2> crypto;
     size_t max_pktlen;
@@ -463,26 +465,23 @@ struct Client {
   int quic_recv_crypto_data(ngtcp2_crypto_level crypto_level,
                             const uint8_t *data, size_t datalen);
   int quic_handshake_completed();
-  int quic_in_encrypt(uint8_t *dest, size_t destlen, const uint8_t *plaintext,
+  int quic_in_encrypt(uint8_t *dest, const uint8_t *plaintext,
-                      size_t plaintextlen, const uint8_t *key, size_t keylen,
+                      size_t plaintextlen, const uint8_t *key,
                       const uint8_t *nonce, size_t noncelen, const uint8_t *ad,
                       size_t adlen);
-  int quic_in_decrypt(uint8_t *dest, size_t destlen, const uint8_t *ciphertext,
+  int quic_in_decrypt(uint8_t *dest, const uint8_t *ciphertext,
-                      size_t ciphertextlen, const uint8_t *key, size_t keylen,
+                      size_t ciphertextlen, const uint8_t *key,
                       const uint8_t *nonce, size_t noncelen, const uint8_t *ad,
                       size_t adlen);
-  int quic_encrypt(uint8_t *dest, size_t destlen, const uint8_t *plaintext,
+  int quic_encrypt(uint8_t *dest, const uint8_t *plaintext, size_t plaintextlen,
-                   size_t plaintextlen, const uint8_t *key, size_t keylen,
+                   const uint8_t *key, const uint8_t *nonce, size_t noncelen,
+                   const uint8_t *ad, size_t adlen);
+  int quic_decrypt(uint8_t *dest, const uint8_t *ciphertext,
+                   size_t ciphertextlen, const uint8_t *key,
                    const uint8_t *nonce, size_t noncelen, const uint8_t *ad,
                    size_t adlen);
-  int quic_decrypt(uint8_t *dest, size_t destlen, const uint8_t *ciphertext,
+  int quic_in_hp_mask(uint8_t *dest, const uint8_t *key, const uint8_t *sample);
-                   size_t ciphertextlen, const uint8_t *key, size_t keylen,
+  int quic_hp_mask(uint8_t *dest, const uint8_t *key, const uint8_t *sample);
-                   const uint8_t *nonce, size_t noncelen, const uint8_t *ad,
-                   size_t adlen);
-  int quic_in_hp_mask(uint8_t *dest, size_t destlen, const uint8_t *key,
-                      size_t keylen, const uint8_t *sample, size_t samplelen);
-  int quic_hp_mask(uint8_t *dest, size_t destlen, const uint8_t *key,
-                   size_t keylen, const uint8_t *sample, size_t samplelen);
   int quic_recv_stream_data(int64_t stream_id, int fin, const uint8_t *data,
                             size_t datalen);
   int quic_stream_close(int64_t stream_id, uint64_t app_error_code);

src/h2load_http3_session.cc

@@ -83,9 +83,6 @@ int64_t Http3Session::submit_request_internal() {
     return rv;
   }
 
-  rv = nghttp3_conn_end_stream(conn_, stream_id);
-  assert(0 == rv);
-
   client_->on_request(stream_id);
   auto req_stat = client_->get_req_stat(stream_id);
   assert(req_stat);

src/h2load_quic.cc

@@ -37,6 +37,8 @@ namespace {
 auto randgen = util::make_mt19937();
 } // namespace
 
+ngtcp2_crypto_ctx in_crypto_ctx;
+
 namespace {
 int client_initial(ngtcp2_conn *conn, void *user_data) {
   auto c = static_cast<Client *>(user_data);
@@ -123,156 +125,133 @@ int recv_retry(ngtcp2_conn *conn, const ngtcp2_pkt_hd *hd,
 } // namespace
 
 namespace {
-ssize_t in_encrypt(ngtcp2_conn *conn, uint8_t *dest, size_t destlen,
+int in_encrypt(ngtcp2_conn *conn, uint8_t *dest, const uint8_t *plaintext,
-                   const uint8_t *plaintext, size_t plaintextlen,
+               size_t plaintextlen, const uint8_t *key, const uint8_t *nonce,
-                   const uint8_t *key, size_t keylen, const uint8_t *nonce,
                size_t noncelen, const uint8_t *ad, size_t adlen,
                void *user_data) {
   auto c = static_cast<Client *>(user_data);
 
-  auto nwrite = c->quic_in_encrypt(dest, destlen, plaintext, plaintextlen, key,
+  if (c->quic_in_encrypt(dest, plaintext, plaintextlen, key, nonce, noncelen,
-                                   keylen, nonce, noncelen, ad, adlen);
+                         ad, adlen) != 0) {
-  if (nwrite < 0) {
     return NGTCP2_ERR_CALLBACK_FAILURE;
   }
 
-  return nwrite;
+  return 0;
 }
 } // namespace
 
-int Client::quic_in_encrypt(uint8_t *dest, size_t destlen,
+int Client::quic_in_encrypt(uint8_t *dest, const uint8_t *plaintext,
-                            const uint8_t *plaintext, size_t plaintextlen,
+                            size_t plaintextlen, const uint8_t *key,
-                            const uint8_t *key, size_t keylen,
                             const uint8_t *nonce, size_t noncelen,
                             const uint8_t *ad, size_t adlen) {
-  return quic::encrypt(dest, destlen, plaintext, plaintextlen, key, keylen,
+  return ngtcp2_crypto_encrypt(dest, &in_crypto_ctx.aead, plaintext,
-                       nonce, noncelen, ad, adlen, EVP_aes_128_gcm());
+                               plaintextlen, key, nonce, noncelen, ad, adlen);
 }
 
 namespace {
-ssize_t in_decrypt(ngtcp2_conn *conn, uint8_t *dest, size_t destlen,
+int in_decrypt(ngtcp2_conn *conn, uint8_t *dest, const uint8_t *ciphertext,
-                   const uint8_t *ciphertext, size_t ciphertextlen,
+               size_t ciphertextlen, const uint8_t *key, const uint8_t *nonce,
-                   const uint8_t *key, size_t keylen, const uint8_t *nonce,
                size_t noncelen, const uint8_t *ad, size_t adlen,
                void *user_data) {
   auto c = static_cast<Client *>(user_data);
 
-  auto nwrite = c->quic_in_decrypt(dest, destlen, ciphertext, ciphertextlen,
+  if (c->quic_in_decrypt(dest, ciphertext, ciphertextlen, key, nonce, noncelen,
-                                   key, keylen, nonce, noncelen, ad, adlen);
+                         ad, adlen) != 0) {
-  if (nwrite < 0) {
     return NGTCP2_ERR_TLS_DECRYPT;
   }
 
-  return nwrite;
+  return 0;
 }
 } // namespace
 
-int Client::quic_in_decrypt(uint8_t *dest, size_t destlen,
+int Client::quic_in_decrypt(uint8_t *dest, const uint8_t *ciphertext,
-                            const uint8_t *ciphertext, size_t ciphertextlen,
+                            size_t ciphertextlen, const uint8_t *key,
-                            const uint8_t *key, size_t keylen,
                             const uint8_t *nonce, size_t noncelen,
                             const uint8_t *ad, size_t adlen) {
-  return quic::decrypt(dest, destlen, ciphertext, ciphertextlen, key, keylen,
+  return ngtcp2_crypto_decrypt(dest, &in_crypto_ctx.aead, ciphertext,
-                       nonce, noncelen, ad, adlen, EVP_aes_128_gcm());
+                               ciphertextlen, key, nonce, noncelen, ad, adlen);
 }
 
 namespace {
-ssize_t encrypt(ngtcp2_conn *conn, uint8_t *dest, size_t destlen,
+int encrypt(ngtcp2_conn *conn, uint8_t *dest, const uint8_t *plaintext,
-                const uint8_t *plaintext, size_t plaintextlen,
+            size_t plaintextlen, const uint8_t *key, const uint8_t *nonce,
-                const uint8_t *key, size_t keylen, const uint8_t *nonce,
+            size_t noncelen, const uint8_t *ad, size_t adlen, void *user_data) {
-                size_t noncelen, const uint8_t *ad, size_t adlen,
-                void *user_data) {
   auto c = static_cast<Client *>(user_data);
 
-  auto nwrite = c->quic_encrypt(dest, destlen, plaintext, plaintextlen, key,
+  if (c->quic_encrypt(dest, plaintext, plaintextlen, key, nonce, noncelen, ad,
-                                keylen, nonce, noncelen, ad, adlen);
+                      adlen) != 0) {
-  if (nwrite < 0) {
     return NGTCP2_ERR_CALLBACK_FAILURE;
   }
 
-  return nwrite;
+  return 0;
 }
 } // namespace
 
-int Client::quic_encrypt(uint8_t *dest, size_t destlen,
+int Client::quic_encrypt(uint8_t *dest, const uint8_t *plaintext,
-                         const uint8_t *plaintext, size_t plaintextlen,
+                         size_t plaintextlen, const uint8_t *key,
-                         const uint8_t *key, size_t keylen,
                          const uint8_t *nonce, size_t noncelen,
                          const uint8_t *ad, size_t adlen) {
-  return quic::encrypt(dest, destlen, plaintext, plaintextlen, key, keylen,
+  return ngtcp2_crypto_encrypt(dest, &quic.crypto_ctx.aead, plaintext,
-                       nonce, noncelen, ad, adlen, quic::aead(ssl));
+                               plaintextlen, key, nonce, noncelen, ad, adlen);
 }
 
 namespace {
-ssize_t decrypt(ngtcp2_conn *conn, uint8_t *dest, size_t destlen,
+int decrypt(ngtcp2_conn *conn, uint8_t *dest, const uint8_t *ciphertext,
-                const uint8_t *ciphertext, size_t ciphertextlen,
+            size_t ciphertextlen, const uint8_t *key, const uint8_t *nonce,
-                const uint8_t *key, size_t keylen, const uint8_t *nonce,
+            size_t noncelen, const uint8_t *ad, size_t adlen, void *user_data) {
-                size_t noncelen, const uint8_t *ad, size_t adlen,
-                void *user_data) {
   auto c = static_cast<Client *>(user_data);
 
-  auto nwrite = c->quic_decrypt(dest, destlen, ciphertext, ciphertextlen, key,
+  if (c->quic_decrypt(dest, ciphertext, ciphertextlen, key, nonce, noncelen, ad,
-                                keylen, nonce, noncelen, ad, adlen);
+                      adlen) != 0) {
-  if (nwrite < 0) {
     return NGTCP2_ERR_TLS_DECRYPT;
   }
 
-  return nwrite;
+  return 0;
 }
 } // namespace
 
-int Client::quic_decrypt(uint8_t *dest, size_t destlen,
+int Client::quic_decrypt(uint8_t *dest, const uint8_t *ciphertext,
-                         const uint8_t *ciphertext, size_t ciphertextlen,
+                         size_t ciphertextlen, const uint8_t *key,
-                         const uint8_t *key, size_t keylen,
                          const uint8_t *nonce, size_t noncelen,
                          const uint8_t *ad, size_t adlen) {
-  return quic::decrypt(dest, destlen, ciphertext, ciphertextlen, key, keylen,
+  return ngtcp2_crypto_decrypt(dest, &quic.crypto_ctx.aead, ciphertext,
-                       nonce, noncelen, ad, adlen, quic::aead(ssl));
+                               ciphertextlen, key, nonce, noncelen, ad, adlen);
 }
 
 namespace {
-ssize_t in_hp_mask(ngtcp2_conn *conn, uint8_t *dest, size_t destlen,
+int in_hp_mask(ngtcp2_conn *conn, uint8_t *dest, const uint8_t *key,
-                   const uint8_t *key, size_t keylen, const uint8_t *sample,
+               const uint8_t *sample, void *user_data) {
-                   size_t samplelen, void *user_data) {
   auto c = static_cast<Client *>(user_data);
 
-  auto nwrite =
+  if (c->quic_in_hp_mask(dest, key, sample) != 0) {
-      c->quic_in_hp_mask(dest, destlen, key, keylen, sample, samplelen);
-  if (nwrite < 0) {
     return NGTCP2_ERR_CALLBACK_FAILURE;
   }
 
-  return nwrite;
+  return 0;
 }
 } // namespace
 
-int Client::quic_in_hp_mask(uint8_t *dest, size_t destlen, const uint8_t *key,
+int Client::quic_in_hp_mask(uint8_t *dest, const uint8_t *key,
-                            size_t keylen, const uint8_t *sample,
+                            const uint8_t *sample) {
-                            size_t samplelen) {
+  return ngtcp2_crypto_hp_mask(dest, &in_crypto_ctx.hp, key, sample);
-  return quic::hp_mask(dest, destlen, key, keylen, sample, samplelen,
-                       EVP_aes_128_ctr());
 }
 
 namespace {
-ssize_t hp_mask(ngtcp2_conn *conn, uint8_t *dest, size_t destlen,
+int hp_mask(ngtcp2_conn *conn, uint8_t *dest, const uint8_t *key,
-                const uint8_t *key, size_t keylen, const uint8_t *sample,
+            const uint8_t *sample, void *user_data) {
-                size_t samplelen, void *user_data) {
   auto c = static_cast<Client *>(user_data);
 
-  auto nwrite = c->quic_hp_mask(dest, destlen, key, keylen, sample, samplelen);
+  if (c->quic_hp_mask(dest, key, sample) != 0) {
-  if (nwrite < 0) {
     return NGTCP2_ERR_CALLBACK_FAILURE;
   }
 
-  return nwrite;
+  return 0;
 }
 } // namespace
 
-int Client::quic_hp_mask(uint8_t *dest, size_t destlen, const uint8_t *key,
+int Client::quic_hp_mask(uint8_t *dest, const uint8_t *key,
-                         size_t keylen, const uint8_t *sample,
+                         const uint8_t *sample) {
-                         size_t samplelen) {
+  return ngtcp2_crypto_hp_mask(dest, &quic.crypto_ctx.hp, key, sample);
-  return quic::hp_mask(dest, destlen, key, keylen, sample, samplelen,
-                       quic::hp(ssl));
 }
 
 namespace {
@@ -669,71 +648,45 @@ void Client::quic_close_connection() {
 }
 
 int Client::quic_setup_initial_crypto() {
-  int rv;
+  std::array<uint8_t, 32> tx_secret, rx_secret;
-
-  std::array<uint8_t, 32> initial_secret, secret;
   auto dcid = ngtcp2_conn_get_dcid(quic.conn);
-  rv = quic::derive_initial_secret(
+  if (ngtcp2_crypto_derive_initial_secrets(rx_secret.data(), tx_secret.data(),
-      initial_secret.data(), initial_secret.size(), dcid->data, dcid->datalen,
+                                           nullptr, dcid,
-      reinterpret_cast<const uint8_t *>(NGTCP2_INITIAL_SALT),
+                                           NGTCP2_CRYPTO_SIDE_CLIENT) != 0) {
-      str_size(NGTCP2_INITIAL_SALT));
+    std::cerr << "ngtcp2_crypto_derive_initial_secrets() failed" << std::endl;
-  if (rv != 0) {
-    std::cerr << "quic::derive_initial_secret() failed" << std::endl;
     return -1;
   }
 
-  auto aead = EVP_aes_128_gcm();
+  auto aead = &in_crypto_ctx.aead;
-  auto prf = EVP_sha256();
+  auto md = &in_crypto_ctx.md;
-
-  rv = quic::derive_client_initial_secret(secret.data(), secret.size(),
-                                          initial_secret.data(),
-                                          initial_secret.size());
-  if (rv != 0) {
-    std::cerr << "quic::derive_client_initial_secret() failed" << std::endl;
-    return -1;
-  }
 
   std::array<uint8_t, 16> key, iv, hp;
-  auto keylen = key.size();
+  auto keylen = ngtcp2_crypto_aead_keylen(aead);
-  auto ivlen = iv.size();
+  auto ivlen = ngtcp2_crypto_packet_protection_ivlen(aead);
-  rv = quic::derive_packet_protection_key(key.data(), keylen, iv.data(), ivlen,
+  auto hplen = keylen;
-                                          secret.data(), secret.size(), aead,
+
-                                          prf);
+  if (ngtcp2_crypto_derive_packet_protection_key(key.data(), iv.data(), aead,
-  if (rv != 0) {
+                                                 md, tx_secret.data(),
+                                                 tx_secret.size()) != 0) {
     return -1;
   }
 
-  auto hplen = hp.size();
+  if (ngtcp2_crypto_derive_header_protection_key(
-  rv = quic::derive_header_protection_key(hp.data(), hplen, secret.data(),
+          hp.data(), aead, md, tx_secret.data(), tx_secret.size()) != 0) {
-                                          secret.size(), aead, prf);
-  if (rv != 0) {
     return -1;
   }
 
   ngtcp2_conn_install_initial_tx_keys(quic.conn, key.data(), keylen, iv.data(),
                                       ivlen, hp.data(), hplen);
 
-  rv = quic::derive_server_initial_secret(secret.data(), secret.size(),
+  if (ngtcp2_crypto_derive_packet_protection_key(key.data(), iv.data(), aead,
-                                          initial_secret.data(),
+                                                 md, rx_secret.data(),
-                                          initial_secret.size());
+                                                 rx_secret.size()) != 0) {
-  if (rv != 0) {
-    std::cerr << "quic::derive_server_initial_secret() failed" << std::endl;
     return -1;
   }
 
-  keylen = key.size();
+  if (ngtcp2_crypto_derive_header_protection_key(
-  ivlen = iv.size();
+          hp.data(), aead, md, rx_secret.data(), rx_secret.size()) != 0) {
-  rv = quic::derive_packet_protection_key(key.data(), keylen, iv.data(), ivlen,
-                                          secret.data(), secret.size(), aead,
-                                          prf);
-  if (rv != 0) {
-    return -1;
-  }
-
-  hplen = hp.size();
-  rv = quic::derive_header_protection_key(hp.data(), hplen, secret.data(),
-                                          secret.size(), aead, prf);
-  if (rv != 0) {
     return -1;
   }
 
@@ -744,8 +697,6 @@ int Client::quic_setup_initial_crypto() {
 }
 
 int Client::quic_on_key(int name, const uint8_t *secret, size_t secretlen) {
-  int rv;
-
   switch (name) {
   case SSL_KEY_CLIENT_EARLY_TRAFFIC:
   case SSL_KEY_CLIENT_HANDSHAKE_TRAFFIC:
@@ -757,28 +708,30 @@ int Client::quic_on_key(int name, const uint8_t *secret, size_t secretlen) {
     return 0;
   }
 
-  auto aead = quic::aead(ssl);
+  if (quic.crypto_ctx.aead.native_handle == nullptr) {
-  auto prf = quic::prf(ssl);
+    ngtcp2_crypto_ctx_tls(&quic.crypto_ctx, ssl);
+    ngtcp2_conn_set_aead_overhead(
+        quic.conn, ngtcp2_crypto_aead_taglen(&quic.crypto_ctx.aead));
+  }
+
+  auto aead = &quic.crypto_ctx.aead;
+  auto md = &quic.crypto_ctx.md;
 
   std::array<uint8_t, 64> key, iv, hp;
-  auto keylen = key.size();
+  auto keylen = ngtcp2_crypto_aead_keylen(aead);
-  auto ivlen = iv.size();
+  auto ivlen = ngtcp2_crypto_packet_protection_ivlen(aead);
-  rv = quic::derive_packet_protection_key(key.data(), keylen, iv.data(), ivlen,
+  auto hplen = keylen;
-                                          secret, secretlen, aead, prf);
+
-  if (rv != 0) {
+  if (ngtcp2_crypto_derive_packet_protection_key(key.data(), iv.data(), aead,
+                                                 md, secret, secretlen) != 0) {
     return -1;
   }
 
-  auto hplen = hp.size();
+  if (ngtcp2_crypto_derive_header_protection_key(hp.data(), aead, md, secret,
-  rv = quic::derive_header_protection_key(hp.data(), hplen, secret, secretlen,
+                                                 secretlen) != 0) {
-                                          aead, prf);
-  if (rv != 0) {
     return -1;
   }
 
-  // TODO Just call this once.
-  ngtcp2_conn_set_aead_overhead(quic.conn, quic::aead_max_overhead(aead));
-
   switch (name) {
   case SSL_KEY_CLIENT_EARLY_TRAFFIC:
     ngtcp2_conn_install_early_keys(quic.conn, key.data(), keylen, iv.data(),

src/quic.cc

@@ -26,8 +26,6 @@
 
 #include <cassert>
 
-#include <openssl/kdf.h>
-
 #include <ngtcp2/ngtcp2.h>
 #include <nghttp3/nghttp3.h>
 
@@ -37,402 +35,6 @@ using namespace nghttp2;
 
 namespace quic {
 
-const EVP_CIPHER *aead(SSL *ssl) {
-  switch (SSL_CIPHER_get_id(SSL_get_current_cipher(ssl))) {
-  case 0x03001301u: // TLS_AES_128_GCM_SHA256
-    return EVP_aes_128_gcm();
-  case 0x03001302u: // TLS_AES_256_GCM_SHA384
-    return EVP_aes_256_gcm();
-  case 0x03001303u: // TLS_CHACHA20_POLY1305_SHA256
-    return EVP_chacha20_poly1305();
-  case 0x03001304u: // TLS_AES_128_CCM_SHA256
-    return EVP_aes_128_ccm();
-  default:
-    assert(0);
-  }
-}
-
-const EVP_CIPHER *hp(SSL *ssl) {
-  switch (SSL_CIPHER_get_id(SSL_get_current_cipher(ssl))) {
-  case 0x03001301u: // TLS_AES_128_GCM_SHA256
-  case 0x03001304u: // TLS_AES_128_CCM_SHA256
-    return EVP_aes_128_ctr();
-  case 0x03001302u: // TLS_AES_256_GCM_SHA384
-    return EVP_aes_256_ctr();
-  case 0x03001303u: // TLS_CHACHA20_POLY1305_SHA256
-    return EVP_chacha20();
-  default:
-    assert(0);
-  }
-}
-
-const EVP_MD *prf(SSL *ssl) {
-  switch (SSL_CIPHER_get_id(SSL_get_current_cipher(ssl))) {
-  case 0x03001301u: // TLS_AES_128_GCM_SHA256
-  case 0x03001303u: // TLS_CHACHA20_POLY1305_SHA256
-  case 0x03001304u: // TLS_AES_128_CCM_SHA256
-    return EVP_sha256();
-  case 0x03001302u: // TLS_AES_256_GCM_SHA384
-    return EVP_sha384();
-  default:
-    assert(0);
-  }
-}
-
-namespace {
-size_t aead_key_length(const EVP_CIPHER *aead) {
-  return EVP_CIPHER_key_length(aead);
-}
-} // namespace
-
-namespace {
-size_t aead_nonce_length(const EVP_CIPHER *aead) {
-  return EVP_CIPHER_iv_length(aead);
-}
-} // namespace
-
-namespace {
-size_t aead_tag_length(const EVP_CIPHER *aead) {
-  if (aead == EVP_aes_128_gcm() || aead == EVP_aes_256_gcm()) {
-    return EVP_GCM_TLS_TAG_LEN;
-  }
-  if (aead == EVP_chacha20_poly1305()) {
-    return EVP_CHACHAPOLY_TLS_TAG_LEN;
-  }
-  if (aead == EVP_aes_128_ccm()) {
-    return EVP_CCM_TLS_TAG_LEN;
-  }
-  assert(0);
-}
-} // namespace
-
-size_t aead_max_overhead(const EVP_CIPHER *aead) {
-  return aead_tag_length(aead);
-}
-
-int hkdf_extract(uint8_t *dest, size_t destlen, const uint8_t *secret,
-                 size_t secretlen, const uint8_t *salt, size_t saltlen,
-                 const EVP_MD *prf) {
-  auto pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, nullptr);
-  if (pctx == nullptr) {
-    return -1;
-  }
-
-  auto pctx_d = defer(EVP_PKEY_CTX_free, pctx);
-
-  if (EVP_PKEY_derive_init(pctx) != 1 ||
-      EVP_PKEY_CTX_hkdf_mode(pctx, EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY) != 1 ||
-      EVP_PKEY_CTX_set_hkdf_md(pctx, prf) != 1 ||
-      EVP_PKEY_CTX_set1_hkdf_salt(pctx, salt, saltlen) != 1 ||
-      EVP_PKEY_CTX_set1_hkdf_key(pctx, secret, secretlen) != 1 ||
-      EVP_PKEY_derive(pctx, dest, &destlen) != 1) {
-    return -1;
-  }
-
-  return 0;
-}
-
-int hkdf_expand(uint8_t *dest, size_t destlen, const uint8_t *secret,
-                size_t secretlen, const uint8_t *info, size_t infolen,
-                const EVP_MD *prf) {
-  auto pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, nullptr);
-  if (pctx == nullptr) {
-    return -1;
-  }
-
-  auto pctx_d = defer(EVP_PKEY_CTX_free, pctx);
-
-  if (EVP_PKEY_derive_init(pctx) != 1 ||
-      EVP_PKEY_CTX_hkdf_mode(pctx, EVP_PKEY_HKDEF_MODE_EXPAND_ONLY) != 1 ||
-      EVP_PKEY_CTX_set_hkdf_md(pctx, prf) != 1 ||
-      EVP_PKEY_CTX_set1_hkdf_salt(pctx, "", 0) != 1 ||
-      EVP_PKEY_CTX_set1_hkdf_key(pctx, secret, secretlen) != 1 ||
-      EVP_PKEY_CTX_add1_hkdf_info(pctx, info, infolen) != 1 ||
-      EVP_PKEY_derive(pctx, dest, &destlen) != 1) {
-    return -1;
-  }
-
-  return 0;
-}
-
-int hkdf_expand_label(uint8_t *dest, size_t destlen, const uint8_t *secret,
-                      size_t secretlen, const uint8_t *label, size_t labellen,
-                      const EVP_MD *prf) {
-  std::array<uint8_t, 256> info;
-  static constexpr const uint8_t LABEL[] = "tls13 ";
-
-  auto p = std::begin(info);
-  *p++ = destlen / 256;
-  *p++ = destlen % 256;
-  *p++ = str_size(LABEL) + labellen;
-  p = std::copy_n(LABEL, str_size(LABEL), p);
-  p = std::copy_n(label, labellen, p);
-  *p++ = 0;
-
-  return hkdf_expand(dest, destlen, secret, secretlen, info.data(),
-                     p - std::begin(info), prf);
-}
-
-int derive_initial_secret(uint8_t *dest, size_t destlen, const uint8_t *secret,
-                          size_t secretlen, const uint8_t *salt,
-                          size_t saltlen) {
-  return hkdf_extract(dest, destlen, secret, secretlen, salt, saltlen,
-                      EVP_sha256());
-}
-
-int derive_client_initial_secret(uint8_t *dest, size_t destlen,
-                                 const uint8_t *secret, size_t secretlen) {
-  static constexpr uint8_t LABEL[] = "client in";
-  return hkdf_expand_label(dest, destlen, secret, secretlen, LABEL,
-                           str_size(LABEL), EVP_sha256());
-}
-
-int derive_server_initial_secret(uint8_t *dest, size_t destlen,
-                                 const uint8_t *secret, size_t secretlen) {
-  static constexpr uint8_t LABEL[] = "server in";
-  return hkdf_expand_label(dest, destlen, secret, secretlen, LABEL,
-                           str_size(LABEL), EVP_sha256());
-}
-
-int derive_packet_protection_key(uint8_t *key, size_t &keylen, uint8_t *iv,
-                                 size_t &ivlen, const uint8_t *secret,
-                                 size_t secretlen, const EVP_CIPHER *aead,
-                                 const EVP_MD *prf) {
-  int rv;
-  static constexpr uint8_t KEY_LABEL[] = "quic key";
-  static constexpr uint8_t IV_LABEL[] = "quic iv";
-
-  auto req_keylen = aead_key_length(aead);
-  if (req_keylen > keylen) {
-    return -1;
-  }
-
-  keylen = req_keylen;
-  rv = hkdf_expand_label(key, keylen, secret, secretlen, KEY_LABEL,
-                         str_size(KEY_LABEL), prf);
-  if (rv != 0) {
-    return -1;
-  }
-
-  auto req_ivlen = std::max(static_cast<size_t>(8), aead_nonce_length(aead));
-  if (req_ivlen > ivlen) {
-    return -1;
-  }
-
-  ivlen = req_ivlen;
-  rv = hkdf_expand_label(iv, ivlen, secret, secretlen, IV_LABEL,
-                         str_size(IV_LABEL), prf);
-  if (rv != 0) {
-    return -1;
-  }
-
-  return 0;
-}
-
-int derive_header_protection_key(uint8_t *key, size_t &keylen,
-                                 const uint8_t *secret, size_t secretlen,
-                                 const EVP_CIPHER *aead, const EVP_MD *prf) {
-  int rv;
-  static constexpr uint8_t LABEL[] = "quic hp";
-
-  auto req_keylen = aead_key_length(aead);
-  if (req_keylen > keylen) {
-    return -1;
-  }
-
-  keylen = req_keylen;
-  rv = hkdf_expand_label(key, keylen, secret, secretlen, LABEL, str_size(LABEL),
-                         prf);
-  if (rv != 0) {
-    return -1;
-  }
-
-  return 0;
-}
-
-ssize_t encrypt(uint8_t *dest, size_t destlen, const uint8_t *plaintext,
-                size_t plaintextlen, const uint8_t *key, size_t keylen,
-                const uint8_t *nonce, size_t noncelen, const uint8_t *ad,
-                size_t adlen, const EVP_CIPHER *aead) {
-  auto taglen = aead_tag_length(aead);
-
-  if (destlen < plaintextlen + taglen) {
-    return -1;
-  }
-
-  auto actx = EVP_CIPHER_CTX_new();
-  if (actx == nullptr) {
-    return -1;
-  }
-
-  auto actx_d = defer(EVP_CIPHER_CTX_free, actx);
-
-  if (EVP_EncryptInit_ex(actx, aead, nullptr, nullptr, nullptr) != 1) {
-    return -1;
-  }
-
-  if (EVP_CIPHER_CTX_ctrl(actx, EVP_CTRL_AEAD_SET_IVLEN, noncelen, nullptr) !=
-      1) {
-    return -1;
-  }
-
-  if (aead == EVP_aes_128_ccm() &&
-      EVP_CIPHER_CTX_ctrl(actx, EVP_CTRL_AEAD_SET_TAG, taglen, nullptr) != 1) {
-    return -1;
-  }
-
-  if (EVP_EncryptInit_ex(actx, nullptr, nullptr, key, nonce) != 1) {
-    return -1;
-  }
-
-  size_t outlen = 0;
-  int len;
-
-  if (aead == EVP_aes_128_ccm() &&
-      EVP_EncryptUpdate(actx, nullptr, &len, nullptr, plaintextlen) != 1) {
-    return -1;
-  }
-
-  if (EVP_EncryptUpdate(actx, nullptr, &len, ad, adlen) != 1) {
-    return -1;
-  }
-
-  if (EVP_EncryptUpdate(actx, dest, &len, plaintext, plaintextlen) != 1) {
-    return -1;
-  }
-
-  outlen = len;
-
-  if (EVP_EncryptFinal_ex(actx, dest + outlen, &len) != 1) {
-    return -1;
-  }
-
-  outlen += len;
-
-  assert(outlen + taglen <= destlen);
-
-  if (EVP_CIPHER_CTX_ctrl(actx, EVP_CTRL_AEAD_GET_TAG, taglen, dest + outlen) !=
-      1) {
-    return -1;
-  }
-
-  outlen += taglen;
-
-  return outlen;
-}
-
-ssize_t decrypt(uint8_t *dest, size_t destlen, const uint8_t *ciphertext,
-                size_t ciphertextlen, const uint8_t *key, size_t keylen,
-                const uint8_t *nonce, size_t noncelen, const uint8_t *ad,
-                size_t adlen, const EVP_CIPHER *aead) {
-  auto taglen = aead_tag_length(aead);
-
-  if (taglen > ciphertextlen || destlen + taglen < ciphertextlen) {
-    return -1;
-  }
-
-  ciphertextlen -= taglen;
-  auto tag = ciphertext + ciphertextlen;
-
-  auto actx = EVP_CIPHER_CTX_new();
-  if (actx == nullptr) {
-    return -1;
-  }
-
-  auto actx_d = defer(EVP_CIPHER_CTX_free, actx);
-
-  if (EVP_DecryptInit_ex(actx, aead, nullptr, nullptr, nullptr) != 1) {
-    return -1;
-  }
-
-  if (EVP_CIPHER_CTX_ctrl(actx, EVP_CTRL_AEAD_SET_IVLEN, noncelen, nullptr) !=
-      1) {
-    return -1;
-  }
-
-  if (aead == EVP_aes_128_ccm() &&
-      EVP_CIPHER_CTX_ctrl(actx, EVP_CTRL_AEAD_SET_TAG, taglen,
-                          const_cast<uint8_t *>(tag)) != 1) {
-    return -1;
-  }
-
-  if (EVP_DecryptInit_ex(actx, nullptr, nullptr, key, nonce) != 1) {
-    return -1;
-  }
-
-  size_t outlen;
-  int len;
-
-  if (aead == EVP_aes_128_ccm() &&
-      EVP_DecryptUpdate(actx, nullptr, &len, nullptr, ciphertextlen) != 1) {
-    return -1;
-  }
-
-  if (EVP_DecryptUpdate(actx, nullptr, &len, ad, adlen) != 1) {
-    return -1;
-  }
-
-  if (EVP_DecryptUpdate(actx, dest, &len, ciphertext, ciphertextlen) != 1) {
-    return -1;
-  }
-
-  outlen = len;
-
-  if (aead == EVP_aes_128_ccm()) {
-    return outlen;
-  }
-
-  if (EVP_CIPHER_CTX_ctrl(actx, EVP_CTRL_AEAD_SET_TAG, taglen,
-                          const_cast<uint8_t *>(tag)) != 1) {
-    return -1;
-  }
-
-  if (EVP_DecryptFinal_ex(actx, dest + outlen, &len) != 1) {
-    return -1;
-  }
-
-  outlen += len;
-
-  return outlen;
-}
-
-ssize_t hp_mask(uint8_t *dest, size_t destlen, const uint8_t *key,
-                size_t keylen, const uint8_t *sample, size_t samplelen,
-                const EVP_CIPHER *cipher) {
-  static constexpr uint8_t PLAINTEXT[] = "\x00\x00\x00\x00\x00";
-
-  auto actx = EVP_CIPHER_CTX_new();
-  if (actx == nullptr) {
-    return -1;
-  }
-
-  auto actx_d = defer(EVP_CIPHER_CTX_free, actx);
-
-  if (EVP_EncryptInit_ex(actx, cipher, nullptr, key, sample) != 1) {
-    return -1;
-  }
-
-  size_t outlen = 0;
-  int len;
-
-  if (EVP_EncryptUpdate(actx, dest, &len, PLAINTEXT, str_size(PLAINTEXT)) !=
-      1) {
-    return -1;
-  }
-
-  assert(len == 5);
-
-  outlen = len;
-
-  if (EVP_EncryptFinal_ex(actx, dest + outlen, &len) != 1) {
-    return -1;
-  }
-
-  assert(len == 0);
-
-  return outlen;
-}
-
 Error err_transport(int liberr) {
   if (liberr == NGTCP2_ERR_RECV_VERSION_NEGOTIATION) {
     return {ErrorType::TransportVersionNegotiation, 0};

src/quic.h

@@ -27,60 +27,10 @@
 
 #include "nghttp2_config.h"
 
-#include <openssl/ssl.h>
+#include "stdint.h"
 
 namespace quic {
 
-const EVP_CIPHER *aead(SSL *ssl);
-const EVP_CIPHER *hp(SSL *ssl);
-const EVP_MD *prf(SSL *ssl);
-size_t aead_max_overhead(const EVP_CIPHER *aead);
-
-int hkdf_extract(uint8_t *dest, size_t destlen, const uint8_t *secret,
-                 size_t secretlen, const uint8_t *salt, size_t saltlen,
-                 const EVP_MD *prf);
-
-int hkdf_expand(uint8_t *dest, size_t destlen, const uint8_t *secret,
-                size_t secretlen, const uint8_t *info, size_t infolen,
-                const EVP_MD *prf);
-
-int hkdf_expand_label(uint8_t *dest, size_t destlen, const uint8_t *secret,
-                      size_t secretlen, const uint8_t *label, size_t labellen,
-                      const EVP_MD *prf);
-
-int derive_initial_secret(uint8_t *dest, size_t destlen, const uint8_t *secret,
-                          size_t secretlen, const uint8_t *salt,
-                          size_t saltlen);
-
-int derive_client_initial_secret(uint8_t *dest, size_t destlen,
-                                 const uint8_t *secret, size_t secretlen);
-
-int derive_server_initial_secret(uint8_t *dest, size_t destlen,
-                                 const uint8_t *secret, size_t secretlen);
-
-int derive_packet_protection_key(uint8_t *key, size_t &keylen, uint8_t *iv,
-                                 size_t &ivlen, const uint8_t *secret,
-                                 size_t secretlen, const EVP_CIPHER *aead,
-                                 const EVP_MD *prf);
-
-int derive_header_protection_key(uint8_t *key, size_t &keylen,
-                                 const uint8_t *secret, size_t secretlen,
-                                 const EVP_CIPHER *aead, const EVP_MD *prf);
-
-ssize_t encrypt(uint8_t *dest, size_t destlen, const uint8_t *plaintext,
-                size_t plaintextlen, const uint8_t *key, size_t keylen,
-                const uint8_t *nonce, size_t noncelen, const uint8_t *ad,
-                size_t adlen, const EVP_CIPHER *aead);
-
-ssize_t decrypt(uint8_t *dest, size_t destlen, const uint8_t *ciphertext,
-                size_t ciphertextlen, const uint8_t *key, size_t keylen,
-                const uint8_t *nonce, size_t noncelen, const uint8_t *ad,
-                size_t adlen, const EVP_CIPHER *aead);
-
-ssize_t hp_mask(uint8_t *dest, size_t destlen, const uint8_t *key,
-                size_t keylen, const uint8_t *sample, size_t samplelen,
-                const EVP_CIPHER *cipher);
-
 enum class ErrorType {
   Transport,
   TransportVersionNegotiation,