WinCNGHashFactory.h

#ifndef TENDUKE_CRYPTO_WIN_CNG_WINCNGHASHFACTORY_H
#define TENDUKE_CRYPTO_WIN_CNG_WINCNGHASHFACTORY_H
 
#include "crypto/msgauthn/HashFactory.h"
 
#include <mutex>
 
#include <windows.h>
#include <bcrypt.h>
 
namespace tenduke { namespace crypto { namespace win { namespace cng {
 
class WinCNGAlgorithms
{
 
public:
    WinCNGAlgorithms();
    ~WinCNGAlgorithms();
 
public:
    ::BCRYPT_ALG_HANDLE get(::tenduke::crypto::HashAlgorithm algorithm);
 
private:
    // Very simple, we only support one alg.
    ::BCRYPT_ALG_HANDLE sha256Handle;
    std::recursive_mutex mutex;
};
 

class WinCNGHashFactory : public ::tenduke::crypto::HashFactory
{
 
public:
    WinCNGHashFactory();
 
    // ::tenduke::crypto::HashFactory implementation
public:
    std::unique_ptr<::tenduke::crypto::CryptographicHash> create(::tenduke::crypto::HashAlgorithm algorithm) const override;
 
private:
    const std::shared_ptr<WinCNGAlgorithms> algorithms;
};
 
}}}}
 
#endif //TENDUKE_CRYPTO_WIN_CNG_WINCNGHASHFACTORY_H