# Supported API operations Key storage provider (KSP) for AWS CloudHSM Client SDK 5
<a name="ksp-library-apis"></a>

The parameters in the KSP are defined by Microsoft KSP. See the [Microsoft documentation](https://learn.microsoft.com/en-us/windows/win32/api/ncrypt/) for more information.

The Key Storage Provider (KSP) supports the following KSP API operations for AWS CloudHSM Client SDK 5.
+ [`NCryptOpenStorageProvider`](ksp-library-apis-open-provider.md)
+ [NCryptOpenKey](ksp-library-apis-open-key.md)
+ [NCryptCreatePersistedKey](ksp-library-apis-create-persisted-key.md)
+ [NCryptGetProperty](ksp-library-apis-get-property.md)
+ [NCryptSetProperty](ksp-library-apis-set-property.md)
+ [NCryptFinalizeKey](ksp-library-apis-finalize-key.md)
+ [NCryptDeleteKey](ksp-library-apis-delete-key.md)
+ [NCryptFreeObject](ksp-library-apis-free-object.md)
+ [NCryptFreeBuffer](ksp-library-apis-free-buffer.md)
+ [NCryptIsAlgSupported](ksp-library-apis-is-alg-supported.md)
+ [NCryptEnumAlgorithms](ksp-library-apis-enum-algorithms.md)
+ [NCryptEnumKeys](ksp-library-apis-enum-keys.md)
+ [NCryptExportKey](ksp-library-apis-export-key.md)
+ [NCryptSignHash](ksp-library-apis-sign-hash.md)
+ [NCryptVerifySignature](ksp-library-apis-verify-signature.md)