WinCNGMessageSigner.h

#ifndef TENDUKE_CRYPTO_WIN_CNG_WINCNGMESSAGESIGNER_H
#define TENDUKE_CRYPTO_WIN_CNG_WINCNGMESSAGESIGNER_H
 
#include "../asymmetric/WinCNGPrivateKey.h"
#include "crypto/msgauthn//MessageDigest.h"
#include "utl/FixedSizeBinaryData.h"
#include <memory>
#include <windows.h>
 
namespace tenduke { namespace crypto { namespace win { namespace cng {

class WinCNGMessageSigner
{
public:
    WinCNGMessageSigner(
        const std::shared_ptr<tenduke::crypto::win::cng::WinCNGPrivateKey> &signing_key,
        std::unique_ptr<tenduke::crypto::MessageDigest> message_digest,
        LPCWSTR padding_algorithm_id
    )
        : signingKey(signing_key),
          messageDigest(std::move(message_digest)),
          paddingAlgorithmId(padding_algorithm_id) {
    }
 
    std::unique_ptr<::tenduke::utl::FixedSizeBinaryData> sign(
          const unsigned char *message,
          size_t messageLength
    );
private:
    const std::shared_ptr<::tenduke::crypto::win::cng::WinCNGPrivateKey> signingKey;
    std::unique_ptr<::tenduke::crypto::MessageDigest> messageDigest;
    const ::LPCWSTR paddingAlgorithmId;
};
 
}}}} // tenduke
 
#endif //TENDUKE_CRYPTO_WIN_CNG_WINCNGMESSAGESIGNER_H