CryptoAlgorithmAES_KWMac.cpp [plain text]
#include "config.h"
#include "CryptoAlgorithmAES_KW.h"
#if ENABLE(SUBTLE_CRYPTO)
#include "CryptoKeyAES.h"
#include <CommonCrypto/CommonCrypto.h>
namespace WebCore {
static ExceptionOr<Vector<uint8_t>> wrapKeyAES_KW(const Vector<uint8_t>& key, const Vector<uint8_t>& data)
{
Vector<uint8_t> result(CCSymmetricWrappedSize(kCCWRAPAES, data.size()));
size_t resultSize = result.size();
if (CCSymmetricKeyWrap(kCCWRAPAES, CCrfc3394_iv, CCrfc3394_ivLen, key.data(), key.size(), data.data(), data.size(), result.data(), &resultSize))
return Exception { OperationError };
result.shrink(resultSize);
return WTFMove(result);
}
static ExceptionOr<Vector<uint8_t>> unwrapKeyAES_KW(const Vector<uint8_t>& key, const Vector<uint8_t>& data)
{
Vector<uint8_t> result(CCSymmetricUnwrappedSize(kCCWRAPAES, data.size()));
size_t resultSize = result.size();
if (resultSize % 8)
return Exception { OperationError };
if (CCSymmetricKeyUnwrap(kCCWRAPAES, CCrfc3394_iv, CCrfc3394_ivLen, key.data(), key.size(), data.data(), data.size(), result.data(), &resultSize))
return Exception { OperationError };
result.shrink(resultSize);
return WTFMove(result);
}
ExceptionOr<Vector<uint8_t>> CryptoAlgorithmAES_KW::platformWrapKey(const CryptoKeyAES& key, const Vector<uint8_t>& data)
{
return wrapKeyAES_KW(key.key(), data);
}
ExceptionOr<Vector<uint8_t>> CryptoAlgorithmAES_KW::platformUnwrapKey(const CryptoKeyAES& key, const Vector<uint8_t>& data)
{
return unwrapKeyAES_KW(key.key(), data);
}
}
#endif // ENABLE(SUBTLE_CRYPTO)