This function provides a handle to a KSP, which can then be used to create, open, or manage persistent keys (like RSA or ECC). Unlike the functions that handle ephemeral (temporary) keys in memory, NCrypt functions are designed for keys that need to be stored long-term, such as on a hard drive, a Smart Card, or within a TPM (Trusted Platform Module). C++ Syntax and Parameters
return S_OK;
Without opening a provider, you cannot generate, store, or retrieve keys. This makes NCryptOpenStorageProvider the gateway to all cryptographic operations.
In many API documentation versions, the "New" concept is implemented via the flag or context-specific flags that force the creation of a new provider context. However, in modern implementations and enterprise wrappers (such as those found in .NET Interop or PowerShell), the term "New" implies the following distinct behaviors: ncryptopenstorageprovider new
| Function | Role | |----------|------| | NCryptOpenStorageProvider | Entry point – get a provider handle | | NCryptCreatePersistedKey | Create a new key object within that provider | | NCryptOpenKey | Open an existing persisted key | | NCryptFinalizeKey | Generate the actual key material | | NCryptExportKey / NCryptImportKey | Transfer keys in/out of the provider | | NCryptFreeObject | Release any CNG handle (provider, key, etc.) |
Instead of running new manually, you commit a CustomResourceDefinition (CRD) to Git:
This function returns a handle to the requested provider, which is then used for downstream operations like creating, opening, or deleting keys.
// 4. Clean up the "New" provider explicitly NCryptFreeObject(hKey); NCryptFreeObject(hProvider);
: No flags are currently defined for this specific function; use 0 . Basic Implementation Example Use code with caution.
The following command-line options are available for the new option:
NCRYPT_PROV_HANDLE hProv = NULL; // Use MS_PLATFORM_CRYPTO_PROVIDER for TPM SECURITY_STATUS status = NCryptOpenStorageProvider(&hProv, MS_PLATFORM_CRYPTO_PROVIDER, 0); Use code with caution. C. Overwriting Existing Keys
NCryptOpenStorageProvider is a function within the ncrypt.h library that loads and initializes a specific CNG Key Storage Provider. Think of it as opening a connection to a specific vault or software module that manages your cryptographic keys.
