# NCryptIsAlgSupported with Key storage provider (KSP)
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NCryptIsAlgSupported function determines if Key Storage Provider (KSP) supports a specific cryptographic algorithm.

## Parameters
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 `hProvider` [in]   
 The handle of the key storage provider. Use [`NCryptOpenStorageProvider`](ksp-library-apis-open-provider.md) to get the handle. 

 `pszAlgId` [in]   
 A pointer to a null-terminated Unicode string that contains the identifier of the cryptographic algorithm to create the key. AWS CloudHSM Key Storage Provider (KSP) supports the following algorithms:     
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[See the AWS documentation website for more details](http://docs.aws.amazon.com/cloudhsm/latest/userguide/ksp-library-apis-is-alg-supported.html)

`dwFlags` [in]  
Flags that modify function behavior. This can be zero or the following value:    
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[See the AWS documentation website for more details](http://docs.aws.amazon.com/cloudhsm/latest/userguide/ksp-library-apis-is-alg-supported.html)

## Return Value
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The function returns a status code to indicate success or failure.

Common return codes include:


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| Return code | Description | 
| --- | --- | 
| ERROR\_SUCCESS | The operation completed successfully. | 
| NTE\_INVALID\_PARAMETER | One or more parameters are not valid. | 
| NTE\_BAD\_FLAGS | The `dwFlags` parameter contains an invalid value. | 
| NTE\_NOT\_SUPPORTED | The `pszAlgId` parameter contains an unsupported value. | 
| NTE\_INVALID\_HANDLE | The handle in `hProvider` is not valid. |