PCRYPT_DECRYPT_PRIVATE_KEY_FUNC

BOOL PCRYPT_DECRYPT_PRIVATE_KEY_FUNC(
    CRYPT_ALGORITHM_IDENTIFIER Algorithm,
    CRYPT_INTEGER_BLOB EncryptedPrivateKey,
    BYTE* pbClearTextKey,
    DWORD* pcbClearTextKey,
    void* pVoidDecryptFunc
);