DataProtectionProvider.UnprotectStreamAsync Method

Definition

Namespace:

Windows.Security.Cryptography.DataProtection

Asynchronously decrypts a data stream.

public:
 virtual IAsyncAction ^ UnprotectStreamAsync(IInputStream ^ src, IOutputStream ^ dest) = UnprotectStreamAsync;

/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncAction UnprotectStreamAsync(IInputStream const& src, IOutputStream const& dest);

[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncAction UnprotectStreamAsync(IInputStream src, IOutputStream dest);

function unprotectStreamAsync(src, dest)

Public Function UnprotectStreamAsync (src As IInputStream, dest As IOutputStream) As IAsyncAction

Parameters

src

IInputStream

Stream to decrypt.

dest

IOutputStream

Decrypted stream.

Returns

IAsyncAction

Represents an asynchronous action.

Attributes

RemoteAsyncAttribute

Remarks

You must call the DataProtectionProvider() constructor before calling this method.

For security descriptors and SDDL strings, you must set the enterprise authentication capability in the manifest. The enterprise authentication capability is restricted to UWP app built with company accounts, and is subject to additional onboarding validation. You should avoid the enterprise authentication capability unless it is absolutely necessary. For more information, see Registering for a developer account. For example, the following SID and SDDL providers require the enterprise authentication capability:

• "SID=S-1-5-21-4392301 AND SID=S-1-5-21-3101812"
• "SDDL=O:S-1-5-5-0-290724G:SYD:(A;;CCDC;;;S-1-5-5-0-290724)(A;;DC;;;WD)"

These providers do not require the enterprise authentication capability:

• "LOCAL=user"
• "LOCAL=machine"
• "WEBCREDENTIALS=MyPasswordName"
• "WEBCREDENTIALS=MyPasswordName,myweb.com"