MemoryProtectionScope Enum

Definition

Specifies the scope of memory protection to be applied by the Protect(Byte[], MemoryProtectionScope) method.

C#
public enum MemoryProtectionScope
Inheritance
MemoryProtectionScope

Fields

Name Value Description
SameProcess 0

Only code running in the same process as the code that called the Protect(Byte[], MemoryProtectionScope) method can unprotect memory.

CrossProcess 1

All code in any process can unprotect memory that was protected using the Protect(Byte[], MemoryProtectionScope) method.

SameLogon 2

Only code running in the same user context as the code that called the Protect(Byte[], MemoryProtectionScope) method can unprotect memory.

Examples

The following code example shows how to use data protection.

C#
using System;
using System.Security.Cryptography;

public class MemoryProtectionSample
{

    public static void Main()
    {
        // Create the original data to be encrypted (The data length should be a multiple of 16).
        byte [] secret = { 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4 };

        // Encrypt the data in memory. The result is stored in the same array as the original data.
        ProtectedMemory.Protect( secret, MemoryProtectionScope.SameLogon );

        // Decrypt the data in memory and store in the original array.
        ProtectedMemory.Unprotect( secret, MemoryProtectionScope.SameLogon );
    }
}

Remarks

This enumeration is used with the Protect and Unprotect methods to protect data in memory.

Applies to

Product Versions
.NET Framework 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1