DataProtector.ProviderProtect(Byte[]) Method

Reference

Definition

Namespace:: System.Security.Cryptography

Assembly:: System.Security.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Specifies the delegate method in the derived class that the Protect(Byte[]) method in the base class calls back into.

protected:
 abstract cli::array <System::Byte> ^ ProviderProtect(cli::array <System::Byte> ^ userData);

protected abstract byte[] ProviderProtect (byte[] userData);

abstract member ProviderProtect : byte[] -> byte[]

Protected MustOverride Function ProviderProtect (userData As Byte()) As Byte()

Parameters

userData: Byte[]

The data to be encrypted.

Returns

Byte[]

A byte array that contains the encrypted data.

Examples

The following example shows an implementation of the ProviderProtect method. It is part of a larger code example for the DataProtector class.

// To allow a service to hand out instances of a DataProtector we demand unrestricted DataProtectionPermission
// in the constructor, but Assert the permission when ProviderProtect is called.  This is similar to FileStream
// where access is checked at time of creation, not time of use.
[SecuritySafeCritical]
[DataProtectionPermission(SecurityAction.Assert, ProtectData = true)]
protected override byte[] ProviderProtect(byte[] userData)
{

    // Delegate to ProtectedData
    ProtectedMemory.Protect(userData, Scope);
    return userData;
}

' To allow a service to hand out instances of a DataProtector we demand unrestricted DataProtectionPermission 
' in the constructor, but Assert the permission when ProviderProtect is called.  This is similar to FileStream
' where access is checked at time of creation, not time of use.
<SecuritySafeCritical(), DataProtectionPermission(SecurityAction.Assert, ProtectData:=True)> _
Protected Overrides Function ProviderProtect(ByVal userData() As Byte) As Byte()

    ' Delegate to ProtectedData
    ProtectedMemory.Protect(userData, Scope)
    Return userData

End Function 'ProviderProtect

Applies to

Dijeli putem