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/*
* 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 "CryptoAlgorithmRSASSA_PKCS1_v1_5.h"
#if ENABLE(WEB_CRYPTO)
#include "CryptoKeyRSA.h"
#include "OpenSSLUtilities.h"
namespace WebCore {
ExceptionOr<Vector<uint8_t>> CryptoAlgorithmRSASSA_PKCS1_v1_5::platformSign(const CryptoKeyRSA& key, const Vector<uint8_t>& data)
{
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_PADDING) <= 0)
return Exception { OperationError };
if (EVP_PKEY_CTX_set_signature_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;
}
ExceptionOr<bool> CryptoAlgorithmRSASSA_PKCS1_v1_5::platformVerify(const CryptoKeyRSA& key, const Vector<uint8_t>& signature, const Vector<uint8_t>& data)
{
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_PADDING) <= 0)
return Exception { OperationError };
if (EVP_PKEY_CTX_set_signature_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;
}
} // namespace WebCore
#endif // ENABLE(WEB_CRYPTO)
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