CryptographicEngine.SignHashedDataAsync(CryptographicKey, IBuffer) Method

Reference

Definition

Namespace:: Windows.Security.Cryptography.Core

Important

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Signs the hashed input data using the specified key.

public:
 static IAsyncOperation<IBuffer ^> ^ SignHashedDataAsync(CryptographicKey ^ key, IBuffer ^ data);

/// [Windows.Foundation.Metadata.RemoteAsync]
 static IAsyncOperation<IBuffer> SignHashedDataAsync(CryptographicKey const& key, IBuffer const& data);

[Windows.Foundation.Metadata.RemoteAsync]
public static IAsyncOperation<IBuffer> SignHashedDataAsync(CryptographicKey key, IBuffer data);

function signHashedDataAsync(key, data)

Public Shared Function SignHashedDataAsync (key As CryptographicKey, data As IBuffer) As IAsyncOperation(Of IBuffer)

Parameters

key: CryptographicKey

The key to use to sign the hash. This key must be an asymmetric key obtained from a PersistedKeyProvider or AsymmetricKeyAlgorithmProvider.

data: IBuffer

The input data to sign. The data is a hashed value which can be obtained through incremental hash.

Returns

IAsyncOperation<IBuffer>

An asynchronous operation to retrieve the signed data.

Attributes: RemoteAsyncAttribute

Remarks

The input data supplied to the SignHashedDataAsync method is a hashed value. To sign raw data that has not been hashed, use the SignAsync method.

If the key is a persisted key and the operation requires UI or takes a long time, use the SignHashedDataAsync method instead of the SignHashedData method.

Applies to