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, 137 insertions, 0 deletions

diff --git a/src/bun.js/bindings/webcrypto/CryptoAlgorithmRSA_OAEPOpenSSL.cpp b/src/bun.js/bindings/webcrypto/CryptoAlgorithmRSA_OAEPOpenSSL.cpp
new file mode 100644
index 000000000..4a3dbb6b7
--- /dev/null
+++ b/src/bun.js/bindings/webcrypto/CryptoAlgorithmRSA_OAEPOpenSSL.cpp
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2021 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 "CryptoAlgorithmRSA_OAEP.h"
+
+#if ENABLE(WEB_CRYPTO)
+
+#include "CryptoAlgorithmRsaOaepParams.h"
+#include "CryptoKeyRSA.h"
+#include "OpenSSLUtilities.h"
+
+namespace WebCore {
+
+ExceptionOr<Vector<uint8_t>> CryptoAlgorithmRSA_OAEP::platformEncrypt(const CryptoAlgorithmRsaOaepParams& parameters, const CryptoKeyRSA& key, const Vector<uint8_t>& plainText)
+{
+#if defined(EVP_PKEY_CTX_set_rsa_oaep_md) && defined(EVP_PKEY_CTX_set_rsa_mgf1_md) && defined(EVP_PKEY_CTX_set0_rsa_oaep_label)
+    const EVP_MD* md = digestAlgorithm(key.hashAlgorithmIdentifier());
+    if (!md)
+        return Exception { NotSupportedError };
+
+    auto ctx = EvpPKeyCtxPtr(EVP_PKEY_CTX_new(key.platformKey(), nullptr));
+    if (!ctx)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_encrypt_init(ctx.get()) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_padding(ctx.get(), RSA_PKCS1_OAEP_PADDING) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_oaep_md(ctx.get(), md) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_mgf1_md(ctx.get(), md) <= 0)
+        return Exception { OperationError };
+
+    if (!parameters.labelVector().isEmpty()) {
+        size_t labelSize = parameters.labelVector().size();
+        // The library takes ownership of the label so the caller should not free the original memory pointed to by label.
+        auto label = OPENSSL_malloc(labelSize);
+        memcpy(label, parameters.labelVector().data(), labelSize);
+        if (EVP_PKEY_CTX_set0_rsa_oaep_label(ctx.get(), label, labelSize) <= 0) {
+            OPENSSL_free(label);
+            return Exception { OperationError };
+        }
+    }
+
+    size_t cipherTextLen;
+    if (EVP_PKEY_encrypt(ctx.get(), nullptr, &cipherTextLen, plainText.data(), plainText.size()) <= 0)
+        return Exception { OperationError };
+
+    Vector<uint8_t> cipherText(cipherTextLen);
+    if (EVP_PKEY_encrypt(ctx.get(), cipherText.data(), &cipherTextLen, plainText.data(), plainText.size()) <= 0)
+        return Exception { OperationError };
+    cipherText.shrink(cipherTextLen);
+
+    return cipherText;
+#else
+    return Exception { NotSupportedError };
+#endif
+}
+
+ExceptionOr<Vector<uint8_t>> CryptoAlgorithmRSA_OAEP::platformDecrypt(const CryptoAlgorithmRsaOaepParams& parameters, const CryptoKeyRSA& key, const Vector<uint8_t>& cipherText)
+{
+#if defined(EVP_PKEY_CTX_set_rsa_oaep_md) && defined(EVP_PKEY_CTX_set_rsa_mgf1_md) && defined(EVP_PKEY_CTX_set0_rsa_oaep_label)
+    const EVP_MD* md = digestAlgorithm(key.hashAlgorithmIdentifier());
+    if (!md)
+        return Exception { NotSupportedError };
+
+    auto ctx = EvpPKeyCtxPtr(EVP_PKEY_CTX_new(key.platformKey(), nullptr));
+    if (!ctx)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_decrypt_init(ctx.get()) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_padding(ctx.get(), RSA_PKCS1_OAEP_PADDING) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_oaep_md(ctx.get(), md) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_mgf1_md(ctx.get(), md) <= 0)
+        return Exception { OperationError };
+
+    if (!parameters.labelVector().isEmpty()) {
+        size_t labelSize = parameters.labelVector().size();
+        // The library takes ownership of the label so the caller should not free the original memory pointed to by label.
+        auto label = OPENSSL_malloc(labelSize);
+        memcpy(label, parameters.labelVector().data(), labelSize);
+        if (EVP_PKEY_CTX_set0_rsa_oaep_label(ctx.get(), label, labelSize) <= 0) {
+            OPENSSL_free(label);
+            return Exception { OperationError };
+        }
+    }
+
+    size_t plainTextLen;
+    if (EVP_PKEY_decrypt(ctx.get(), nullptr, &plainTextLen, cipherText.data(), cipherText.size()) <= 0)
+        return Exception { OperationError };
+
+    Vector<uint8_t> plainText(plainTextLen);
+    if (EVP_PKEY_decrypt(ctx.get(), plainText.data(), &plainTextLen, cipherText.data(), cipherText.size()) <= 0)
+        return Exception { OperationError };
+    plainText.shrink(plainTextLen);
+
+    return plainText;
+#else
+    return Exception { NotSupportedError };
+#endif
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(WEB_CRYPTO)