+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ * Copyright (C) 2017 Metrological Group B.V.
+ * Copyright (C) 2017 Igalia S.L.
+ *
+ * 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 "CryptoAlgorithmIdentifier.h"
+#include <gcrypt.h>
+#include <pal/crypto/CryptoDigest.h>
+#include <pal/crypto/gcrypt/Handle.h>
+#include <pal/crypto/gcrypt/Utilities.h>
+
+namespace WebCore {
+
+static inline std::optional<const char*> hashAlgorithmName(CryptoAlgorithmIdentifier identifier)
+{
+ switch (identifier) {
+ case CryptoAlgorithmIdentifier::SHA_1:
+ return "sha1";
+ case CryptoAlgorithmIdentifier::SHA_224:
+ return "sha224";
+ case CryptoAlgorithmIdentifier::SHA_256:
+ return "sha256";
+ case CryptoAlgorithmIdentifier::SHA_384:
+ return "sha384";
+ case CryptoAlgorithmIdentifier::SHA_512:
+ return "sha512";
+ default:
+ return std::nullopt;
+ }
+}
+
+static inline std::optional<int> hmacAlgorithm(CryptoAlgorithmIdentifier identifier)
+{
+ switch (identifier) {
+ case CryptoAlgorithmIdentifier::SHA_1:
+ return GCRY_MAC_HMAC_SHA1;
+ case CryptoAlgorithmIdentifier::SHA_224:
+ return GCRY_MAC_HMAC_SHA224;
+ case CryptoAlgorithmIdentifier::SHA_256:
+ return GCRY_MAC_HMAC_SHA256;
+ case CryptoAlgorithmIdentifier::SHA_384:
+ return GCRY_MAC_HMAC_SHA384;
+ case CryptoAlgorithmIdentifier::SHA_512:
+ return GCRY_MAC_HMAC_SHA512;
+ default:
+ return std::nullopt;
+ }
+}
+
+static inline std::optional<int> digestAlgorithm(CryptoAlgorithmIdentifier identifier)
+{
+ switch (identifier) {
+ case CryptoAlgorithmIdentifier::SHA_1:
+ return GCRY_MD_SHA1;
+ case CryptoAlgorithmIdentifier::SHA_224:
+ return GCRY_MD_SHA224;
+ case CryptoAlgorithmIdentifier::SHA_256:
+ return GCRY_MD_SHA256;
+ case CryptoAlgorithmIdentifier::SHA_384:
+ return GCRY_MD_SHA384;
+ case CryptoAlgorithmIdentifier::SHA_512:
+ return GCRY_MD_SHA512;
+ default:
+ return std::nullopt;
+ }
+}
+
+static inline std::optional<PAL::CryptoDigest::Algorithm> hashCryptoDigestAlgorithm(CryptoAlgorithmIdentifier identifier)
+{
+ switch (identifier) {
+ case CryptoAlgorithmIdentifier::SHA_1:
+ return PAL::CryptoDigest::Algorithm::SHA_1;
+ case CryptoAlgorithmIdentifier::SHA_224:
+ return PAL::CryptoDigest::Algorithm::SHA_224;
+ case CryptoAlgorithmIdentifier::SHA_256:
+ return PAL::CryptoDigest::Algorithm::SHA_256;
+ case CryptoAlgorithmIdentifier::SHA_384:
+ return PAL::CryptoDigest::Algorithm::SHA_384;
+ case CryptoAlgorithmIdentifier::SHA_512:
+ return PAL::CryptoDigest::Algorithm::SHA_512;
+ default:
+ return std::nullopt;
+ }
+}
+
+static inline std::optional<Vector<uint8_t>> mpiData(gcry_sexp_t paramSexp)
+{
+ // Retrieve the MPI value stored in the s-expression: (name mpi-data)
+ PAL::GCrypt::Handle<gcry_mpi_t> paramMPI(gcry_sexp_nth_mpi(paramSexp, 1, GCRYMPI_FMT_USG));
+ if (!paramMPI)
+ return std::nullopt;
+
+ // Query the data length first to properly prepare the buffer.
+ size_t dataLength = 0;
+ gcry_error_t error = gcry_mpi_print(GCRYMPI_FMT_USG, nullptr, 0, &dataLength, paramMPI);
+ if (error != GPG_ERR_NO_ERROR) {
+ PAL::GCrypt::logError(error);
+ return std::nullopt;
+ }
+
+ // Finally, copy the MPI data into a properly-sized buffer.
+ Vector<uint8_t> output(dataLength);
+ error = gcry_mpi_print(GCRYMPI_FMT_USG, output.data(), output.size(), nullptr, paramMPI);
+ if (error != GPG_ERR_NO_ERROR) {
+ PAL::GCrypt::logError(error);
+ return std::nullopt;
+ }
+
+ return output;
+}
+
+} // namespace WebCore
git://git.webkit.org / WebKit-https.git / commitdiff