SECURITY_STATUS NCryptOpenStorageProvider( [out] NCRYPT_PROV_HANDLE *phProvider, [in, optional] LPCWSTR pszProviderName, [in] DWORD dwFlags ); Use code with caution.
NCryptOpenStorageProvider is a foundational function in the , specifically used to load and initialize a Key Storage Provider (KSP) on Windows systems. This function serves as the entry point for hardware-backed security, such as TPMs and Smart Cards, replacing the legacy CryptAcquireContext from the older CryptoAPI. Core Syntax and Parameters
: KSPs can run in a separate process from the application, protecting private keys even if the application is compromised. ncryptopenstorageprovider new
The function is defined in the ncrypt.h header and requires linking with ncrypt.lib .
: Using the MS_PLATFORM_CRYPTO_PROVIDER ensures that keys are physically tied to the device's TPM, making them non-exportable and highly secure. Core Syntax and Parameters : KSPs can run
: A pointer to an NCRYPT_PROV_HANDLE that receives the provider handle. This handle must eventually be released using NCryptFreeObject .
To create or open a key, you must first obtain a provider handle. NCryptOpenStorageProvider function (ncrypt.h) - Win32 apps : A pointer to an NCRYPT_PROV_HANDLE that receives
MS_KEY_STORAGE_PROVIDER : The standard software-based provider.