DataProtector.ProviderProtect(Byte[]) Method
Definition
Important
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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
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
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