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diff --git a/src/bun.js/bindings/webcrypto/CryptoAlgorithmECDSA.h b/src/bun.js/bindings/webcrypto/CryptoAlgorithmECDSA.h
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+++ b/src/bun.js/bindings/webcrypto/CryptoAlgorithmECDSA.h
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+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include "CryptoAlgorithm.h"
+
+#if ENABLE(WEB_CRYPTO)
+
+namespace WebCore {
+
+class CryptoAlgorithmEcdsaParams;
+class CryptoKeyEC;
+
+class CryptoAlgorithmECDSA final : public CryptoAlgorithm {
+public:
+    static constexpr ASCIILiteral s_name = "ECDSA"_s;
+    static constexpr CryptoAlgorithmIdentifier s_identifier = CryptoAlgorithmIdentifier::ECDSA;
+    static Ref<CryptoAlgorithm> create();
+
+private:
+    CryptoAlgorithmECDSA() = default;
+    CryptoAlgorithmIdentifier identifier() const final;
+
+    void sign(const CryptoAlgorithmParameters&, Ref<CryptoKey>&&, Vector<uint8_t>&&, VectorCallback&&, ExceptionCallback&&, ScriptExecutionContext&, WorkQueue&) final;
+    void verify(const CryptoAlgorithmParameters&, Ref<CryptoKey>&&, Vector<uint8_t>&& signature, Vector<uint8_t>&&, BoolCallback&&, ExceptionCallback&&, ScriptExecutionContext&, WorkQueue&) final;
+    void generateKey(const CryptoAlgorithmParameters&, bool extractable, CryptoKeyUsageBitmap, KeyOrKeyPairCallback&&, ExceptionCallback&&, ScriptExecutionContext&) final;
+    void importKey(CryptoKeyFormat, KeyData&&, const CryptoAlgorithmParameters&, bool extractable, CryptoKeyUsageBitmap, KeyCallback&&, ExceptionCallback&&) final;
+    void exportKey(CryptoKeyFormat, Ref<CryptoKey>&&, KeyDataCallback&&, ExceptionCallback&&) final;
+
+    static ExceptionOr<Vector<uint8_t>> platformSign(const CryptoAlgorithmEcdsaParams&, const CryptoKeyEC&, const Vector<uint8_t>&);
+    static ExceptionOr<bool> platformVerify(const CryptoAlgorithmEcdsaParams&, const CryptoKeyEC&, const Vector<uint8_t>&, const Vector<uint8_t>&);
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(WEB_CRYPTO)