1 files changed, 122 insertions, 0 deletions
diff --git a/src/bun.js/bindings/webcrypto/CryptoAlgorithmRSA_PSSOpenSSL.cpp b/src/bun.js/bindings/webcrypto/CryptoAlgorithmRSA_PSSOpenSSL.cpp
new file mode 100644
index 000000000..62267c581
--- /dev/null
+++ b/src/bun.js/bindings/webcrypto/CryptoAlgorithmRSA_PSSOpenSSL.cpp
@@ -0,0 +1,122 @@
+/*
+ * 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_PSS.h"
+
+#if ENABLE(WEB_CRYPTO) && HAVE(RSA_PSS)
+
+#include "CryptoAlgorithmRsaPssParams.h"
+#include "CryptoKeyRSA.h"
+#include "OpenSSLUtilities.h"
+
+namespace WebCore {
+
+ExceptionOr<Vector<uint8_t>> CryptoAlgorithmRSA_PSS::platformSign(const CryptoAlgorithmRsaPssParams& parameters, const CryptoKeyRSA& key, const Vector<uint8_t>& data)
+{
+#if defined(EVP_PKEY_CTX_set_rsa_pss_saltlen) && defined(EVP_PKEY_CTX_set_rsa_mgf1_md)
+    const EVP_MD* md = digestAlgorithm(key.hashAlgorithmIdentifier());
+    if (!md)
+        return Exception { NotSupportedError };
+
+    std::optional<Vector<uint8_t>> digest = calculateDigest(md, data);
+    if (!digest)
+        return Exception { OperationError };
+
+    auto ctx = EvpPKeyCtxPtr(EVP_PKEY_CTX_new(key.platformKey(), nullptr));
+    if (!ctx)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_sign_init(ctx.get()) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_padding(ctx.get(), RSA_PKCS1_PSS_PADDING ) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx.get(), parameters.saltLength) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_signature_md(ctx.get(), md) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_mgf1_md(ctx.get(), md) <= 0)
+        return Exception { OperationError };
+
+    size_t signatureLen;
+    if (EVP_PKEY_sign(ctx.get(), nullptr, &signatureLen, digest->data(), digest->size()) <= 0)
+        return Exception { OperationError };
+
+    Vector<uint8_t> signature(signatureLen);
+    if (EVP_PKEY_sign(ctx.get(), signature.data(), &signatureLen, digest->data(), digest->size()) <= 0)
+        return Exception { OperationError };
+    signature.shrink(signatureLen);
+
+    return signature;
+#else
+    return Exception { NotSupportedError };
+#endif
+}
+
+ExceptionOr<bool> CryptoAlgorithmRSA_PSS::platformVerify(const CryptoAlgorithmRsaPssParams& parameters, const CryptoKeyRSA& key, const Vector<uint8_t>& signature, const Vector<uint8_t>& data)
+{
+#if defined(EVP_PKEY_CTX_set_rsa_pss_saltlen) && defined(EVP_PKEY_CTX_set_rsa_mgf1_md)
+    const EVP_MD* md = digestAlgorithm(key.hashAlgorithmIdentifier());
+    if (!md)
+        return Exception { NotSupportedError };
+
+    std::optional<Vector<uint8_t>> digest = calculateDigest(md, data);
+    if (!digest)
+        return Exception { OperationError };
+
+    auto ctx = EvpPKeyCtxPtr(EVP_PKEY_CTX_new(key.platformKey(), nullptr));
+    if (!ctx)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_verify_init(ctx.get()) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_padding(ctx.get(), RSA_PKCS1_PSS_PADDING ) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx.get(), parameters.saltLength) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_signature_md(ctx.get(), md) <= 0)
+        return Exception { OperationError };
+
+    if (EVP_PKEY_CTX_set_rsa_mgf1_md(ctx.get(), md) <= 0)
+        return Exception { OperationError };
+
+    int ret = EVP_PKEY_verify(ctx.get(), signature.data(), signature.size(), digest->data(), digest->size());
+
+    return ret == 1;
+#else
+    return Exception { NotSupportedError };
+#endif
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(WEB_CRYPTO)