Add Web Crypto API (#1384)

* Add Web Crypto API

* Duplicate symbols

* Update c_cpp_properties.json

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/src/bun.js/bindings/webcrypto/CryptoAlgorithmECDHOpenSSL.cpp b/src/bun.js/bindings/webcrypto/CryptoAlgorithmECDHOpenSSL.cpp
new file mode 100644
index 000000000..fdd07a9e4
--- /dev/null
+++ b/src/bun.js/bindings/webcrypto/CryptoAlgorithmECDHOpenSSL.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2020 Sony Interactive Entertainment Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "CryptoAlgorithmECDH.h"
+
+#if ENABLE(WEB_CRYPTO)
+
+#include "CryptoKeyEC.h"
+#include "OpenSSLUtilities.h"
+
+namespace WebCore {
+
+std::optional<Vector<uint8_t>> CryptoAlgorithmECDH::platformDeriveBits(const CryptoKeyEC& baseKey, const CryptoKeyEC& publicKey)
+{
+    auto ctx = EvpPKeyCtxPtr(EVP_PKEY_CTX_new(baseKey.platformKey(), nullptr));
+    if (!ctx)
+        return std::nullopt;
+
+    if (EVP_PKEY_derive_init(ctx.get()) <= 0)
+        return std::nullopt;
+
+    if (EVP_PKEY_derive_set_peer(ctx.get(), publicKey.platformKey()) <= 0)
+        return std::nullopt;
+
+    // Call with a nullptr to get the required buffer size.
+    size_t keyLen;
+    if (EVP_PKEY_derive(ctx.get(), nullptr, &keyLen) <= 0)
+        return std::nullopt;
+
+    Vector<uint8_t> key(keyLen);
+    if (EVP_PKEY_derive(ctx.get(), key.data(), &keyLen) <= 0)
+        return std::nullopt;
+
+    // Shrink the buffer since the new keyLen may differ from the buffer size.
+    key.shrink(keyLen);
+
+    return key;
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(WEB_CRYPTO)