MemoryProtectionScope 列挙型

定義

Protect(Byte[], MemoryProtectionScope) メソッドにより適用されるメモリ保護のスコープを指定します。Specifies the scope of memory protection to be applied by the Protect(Byte[], MemoryProtectionScope) method.

public enum class MemoryProtectionScope
public enum MemoryProtectionScope
type MemoryProtectionScope = 
Public Enum MemoryProtectionScope
継承
MemoryProtectionScope

フィールド

CrossProcess 1

Protect(Byte[], MemoryProtectionScope) メソッドを使用して保護されていたメモリの保護を、任意のプロセスのすべてのコードで解除できます。All code in any process can unprotect memory that was protected using the Protect(Byte[], MemoryProtectionScope) method.

SameLogon 2

メモリの保護を解除できるのは、Protect(Byte[], MemoryProtectionScope) メソッドを呼び出したコードと同じユーザー コンテキストで実行されるコードのみです。Only code running in the same user context as the code that called the Protect(Byte[], MemoryProtectionScope) method can unprotect memory.

SameProcess 0

メモリの保護を解除できるのは、Protect(Byte[], MemoryProtectionScope) メソッドを呼び出したコードと同じプロセスで実行されるコードのみです。Only code running in the same process as the code that called the Protect(Byte[], MemoryProtectionScope) method can unprotect memory.

次のコード例は、データ保護の使用方法を示しています。The following code example shows how to use data protection.

#using <System.Security.dll>

using namespace System;
using namespace System::Security::Cryptography;

int main()
{
   
   // Create the original data to be encrypted (The data length should be a multiple of 16).
   array<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 );
}
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 );
    }
}
Imports System.Security.Cryptography

Public Class MemoryProtectionSample

    Public Shared Sub Main()
        ' Create the original data to be encrypted (The data length should be a multiple of 16).
        Dim secret As Byte() = {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)

    End Sub
End Class

注釈

この列挙体は、メモリProtectUnprotectのデータを保護するためにおよびメソッドと共に使用されます。This enumeration is used with the Protect and Unprotect methods to protect data in memory.

適用対象