# KeySizes 클래스

## 정의

대칭 암호화 알고리즘에 대한 유효한 키 크기 세트를 결정합니다.Determines the set of valid key sizes for the symmetric cryptographic algorithms.

``public ref class KeySizes sealed``
``````[System.Runtime.InteropServices.ComVisible(true)]
public sealed class KeySizes``````
``type KeySizes = class``
``Public NotInheritable Class KeySizes``
상속
KeySizes
특성

## 예제

다음 예제에서는의 멤버를 사용 하 여 KeySizes 클래스입니다.The following example shows the use of members of the KeySizes class.

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

namespace CryptographySample
{
ref class KeySizesMembers
{
public:
static void Work()
{
// Initializes a new instance of the KeySizes class
// with the specified key values.
int minSize = 64;
int maxSize = 1024;
int skipSize = 64;
KeySizes^ keySizes =
gcnew KeySizes(minSize, maxSize, skipSize);

// Show the values of the keys.
ShowKeys(gcnew array<KeySizes^>(1) {keySizes},
"Custom Keys");

// Create a new symmetric algorithm and display its
// key values.
SymmetricAlgorithm^ symAlg =
SymmetricAlgorithm::Create();
ShowKeys(symAlg->LegalKeySizes, symAlg->ToString());
Console::WriteLine("rijn.blocksize:{0}",
symAlg->BlockSize);

// Create a new RSA algorithm and display its key values.
RSACryptoServiceProvider^ rsaCSP =
gcnew RSACryptoServiceProvider(384);
ShowKeys(rsaCSP->LegalKeySizes, rsaCSP->ToString());
Console::WriteLine("RSACryptoServiceProvider KeySize ="
" {0}",
rsaCSP->KeySize);

Console::WriteLine("This sample completed successfully; "
"press Enter to exit.");
}

private:
// Display specified KeySize properties to the console.
static void ShowKeys(array <KeySizes^>^ keySizes,
String^ objectName)
{
// Retrieve the first KeySizes in the array.
KeySizes^ firstKeySize = keySizes[0];

// Retrieve the minimum key size in bits.
int minKeySize = firstKeySize->MinSize;

// Retrieve the maximum key size in bits.
int maxKeySize = firstKeySize->MaxSize;

// Retrieve the interval between valid key size in bits.
int skipKeySize = firstKeySize->SkipSize;

Console::WriteLine("{0} object.", objectName);
Console::WriteLine("Minimum key size bits: {0}",
minKeySize);
Console::WriteLine("Maximum key size bits: {0}",
maxKeySize);
Console::WriteLine("Interval between key size bits: {0}",
skipKeySize);
}
};
}

using namespace CryptographySample;

int main()
{
KeySizesMembers::Work();
}
//
// This sample produces the following output:
//
// Minimum key size bits: 64
// Maximum key size bits: 1024
// Interval between key size bits: 64
//
//  System.Security.Cryptography.RijndaelManaged object.
// Minimum key size bits: 128
// Maximum key size bits: 256
// Interval between key size bits: 64
// rijn.blocksize:128
//
// System.Security.Cryptography.RSACryptoServiceProvider object.
// Minimum key size bits: 384
// Maximum key size bits: 16384
// Interval between key size bits: 8
// RSACryptoServiceProvider KeySize = 384
// This sample completed successfully; press Enter to exit.
``````
``````using System;
using System.Security.Cryptography;

namespace Contoso
{
class KeySizesMembers
{
static void Main(string[] args)
{
// Initializes a new instance of the KeySizes class with the
// specified key values.
int minSize = 64;
int maxSize = 1024;
int skipSize = 64;
KeySizes keySizes = new KeySizes(minSize, maxSize, skipSize);

// Show the values of the keys.
ShowKeys(new KeySizes[1]{keySizes}, "Custom Keys");

// Create a new symmetric algorithm and display its key values.
SymmetricAlgorithm rijn = SymmetricAlgorithm.Create();
ShowKeys(rijn.LegalKeySizes, rijn.ToString());
Console.WriteLine("rijn.blocksize:" + rijn.BlockSize);

// Create a new RSA algorithm and display its key values.
RSACryptoServiceProvider rsaCSP =
new RSACryptoServiceProvider(384);
ShowKeys(rsaCSP.LegalKeySizes, rsaCSP.ToString());
Console.WriteLine("RSACryptoServiceProvider KeySize = " +
rsaCSP.KeySize);

Console.WriteLine("This sample completed successfully; " +
"press Enter to exit.");
}

// Display specified KeySize properties to the console.
private static void ShowKeys(KeySizes[] keySizes, string objectName)
{
// Retrieve the first KeySizes in the array.
KeySizes firstKeySize = keySizes[0];

// Retrieve the minimum key size in bits.
int minKeySize = firstKeySize.MinSize;

// Retrieve the maximum key size in bits.
int maxKeySize = firstKeySize.MaxSize;

// Retrieve the interval between valid key size in bits.
int skipKeySize = firstKeySize.SkipSize;

Console.WriteLine(objectName + " object.");
Console.WriteLine("Minimum key size bits: " + minKeySize);
Console.WriteLine("Maximum key size bits: " + maxKeySize);
Console.WriteLine("Interval between key size bits: " +
skipKeySize);
}
}
}
//
// This sample produces the following output:
//
// Minimum key size bits: 64
// Maximum key size bits: 1024
// Interval between key size bits: 64
//
// object.
// Minimum key size bits: 128
// Maximum key size bits: 256
// Interval between key size bits: 64
// rijn.blocksize:128
//
// System.Security.Cryptography.RSACryptoServiceProvider object.
// Minimum key size bits: 384
// Maximum key size bits: 16384
// Interval between key size bits: 8
// RSACryptoServiceProvider KeySize = 384
// This sample completed successfully; press Enter to exit.
``````
``````Imports System.Security.Cryptography

Public Class Form1
Inherits System.Windows.Forms.Form

' Event handler for Run button.
Private Sub Button1_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click

tbxOutput.Cursor = Cursors.WaitCursor
tbxOutput.Text = ""

' Initializes a new instance of the KeySizes class with the
' specified key values.
Dim MinSize As Integer = 64
Dim MaxSize As Integer = 1024
Dim SkipSize As Integer = 64
Dim keySizes As New KeySizes(MinSize, MaxSize, SkipSize)

' Show the values of the keys.
ShowKeys(New KeySizes(0) {keySizes}, "Custom Keys")

' Create a new symmetric algorithm and display its key values.
Dim rijn As SymmetricAlgorithm = SymmetricAlgorithm.Create()
WriteLine("rijn.blocksize:" + rijn.BlockSize.ToString())
ShowKeys(rijn.LegalKeySizes, rijn.ToString())

' Create a new RSA algorithm and display its key values.
Dim rsaCSP As New RSACryptoServiceProvider(384)
WriteLine("RSACryptoServiceProvider KeySize = " + _
rsaCSP.KeySize.ToString())
ShowKeys(rsaCSP.LegalKeySizes, rsaCSP.ToString())

' Reset the cursor and conclude application.
WriteLine("This sample completed successfully;" + _
" press Exit to continue.")
tbxOutput.Cursor = Cursors.Default
End Sub

' Display specified KeySize properties to output textbox.
Private Sub ShowKeys( _
ByVal KeySizes() As KeySizes, _
ByVal objectName As String)

' Retrieve the first KeySizes in the array.
Dim firstKeySize As KeySizes = KeySizes(0)

' Retrieve the minimum key size in bits.
Dim minKeySize As Integer = firstKeySize.MinSize

' Retrieve the maximum key size in bits.
Dim maxKeySize As Integer = firstKeySize.MaxSize

' Retrieve the interval between valid key size in bits.
Dim skipKeySize As Integer = firstKeySize.SkipSize

WriteLine("Minimum key size bits: " + minKeySize.ToString())
WriteLine("Maximum key size bits: " + maxKeySize.ToString())
WriteLine("Interval between key size bits: " + skipKeySize.ToString())
WriteLine("")
End Sub
' Display the message to the textbox with a carriage return and line feed.
Private Sub WriteLine(ByVal message As String)
tbxOutput.AppendText(message + vbCrLf)
End Sub
' Event handler for Exit button.
Private Sub Button2_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button2.Click

Application.Exit()
End Sub
#Region " Windows Form Designer generated code "

Public Sub New()
MyBase.New()

'This call is required by the Windows Form Designer.
InitializeComponent()

'Add any initialization after the InitializeComponent() call

End Sub

'Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub

'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer

'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
Friend WithEvents Panel2 As System.Windows.Forms.Panel
Friend WithEvents Panel1 As System.Windows.Forms.Panel
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents Button2 As System.Windows.Forms.Button
Friend WithEvents tbxOutput As System.Windows.Forms.RichTextBox
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.Panel2 = New System.Windows.Forms.Panel
Me.Button1 = New System.Windows.Forms.Button
Me.Button2 = New System.Windows.Forms.Button
Me.Panel1 = New System.Windows.Forms.Panel
Me.tbxOutput = New System.Windows.Forms.RichTextBox
Me.Panel2.SuspendLayout()
Me.Panel1.SuspendLayout()
Me.SuspendLayout()
'
'Panel2
'
Me.Panel2.Dock = System.Windows.Forms.DockStyle.Bottom
Me.Panel2.Location = New System.Drawing.Point(0, 320)
Me.Panel2.Name = "Panel2"
Me.Panel2.Size = New System.Drawing.Size(616, 64)
Me.Panel2.TabIndex = 1
'
'Button1
'
Me.Button1.Dock = System.Windows.Forms.DockStyle.Right
Me.Button1.Font = New System.Drawing.Font("Microsoft Sans Serif", _
9.0!, _
System.Drawing.FontStyle.Regular, _
System.Drawing.GraphicsUnit.Point, _
CType(0, Byte))
Me.Button1.Location = New System.Drawing.Point(446, 20)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(75, 24)
Me.Button1.TabIndex = 2
Me.Button1.Text = "&Run"
'
'Button2
'
Me.Button2.Dock = System.Windows.Forms.DockStyle.Right
Me.Button2.Font = New System.Drawing.Font("Microsoft Sans Serif", _
9.0!, _
System.Drawing.FontStyle.Regular, _
System.Drawing.GraphicsUnit.Point, _
CType(0, Byte))
Me.Button2.Location = New System.Drawing.Point(521, 20)
Me.Button2.Name = "Button2"
Me.Button2.Size = New System.Drawing.Size(75, 24)
Me.Button2.TabIndex = 3
Me.Button2.Text = "E&xit"
'
'Panel1
'
Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
Me.Panel1.Location = New System.Drawing.Point(0, 0)
Me.Panel1.Name = "Panel1"
Me.Panel1.Size = New System.Drawing.Size(616, 320)
Me.Panel1.TabIndex = 2
'
'tbxOutput
'
Me.tbxOutput.AccessibleDescription = _
"Displays output from application."
Me.tbxOutput.AccessibleName = "Output textbox."
Me.tbxOutput.Dock = System.Windows.Forms.DockStyle.Fill
Me.tbxOutput.Location = New System.Drawing.Point(20, 20)
Me.tbxOutput.Name = "tbxOutput"
Me.tbxOutput.Size = New System.Drawing.Size(576, 280)
Me.tbxOutput.TabIndex = 1
Me.tbxOutput.Text = "Click the Run button to run the application."
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
Me.ClientSize = New System.Drawing.Size(616, 384)
Me.Name = "Form1"
Me.Text = "KeySizes"
Me.Panel2.ResumeLayout(False)
Me.Panel1.ResumeLayout(False)
Me.ResumeLayout(False)

End Sub

#End Region
End Class
'
' This sample produces the following output:
'
' Minimum key size bits: 64
' Maximum key size bits: 1024
' Interval between key size bits: 64
'
' rijn.blocksize:128
' object.
' Minimum key size bits: 128
' Maximum key size bits: 256
' Interval between key size bits: 64
'
' RSACryptoServiceProvider KeySize = 384
' System.Security.Cryptography.RSACryptoServiceProvider object.
' Minimum key size bits: 384
' Maximum key size bits: 16384
' Interval between key size bits: 8
'
' This sample completed successfully; press Exit to continue.
``````

## 생성자

 지정된 키 값을 사용하여 KeySizes 클래스의 새 인스턴스를 초기화합니다.Initializes a new instance of the KeySizes class with the specified key values.

## 속성

 최대 키 크기를 bps 단위로 지정합니다.Specifies the maximum key size in bits. 최소 키 크기를 bps 단위로 지정합니다.Specifies the minimum key size in bits. 유효 키 크기간 간격을 bps 단위로 지정합니다.Specifies the interval between valid key sizes in bits.

## 메서드

 지정한 개체와 현재 개체가 같은지 여부를 확인합니다.Determines whether the specified object is equal to the current object. (다음에서 상속됨 Object) 기본 해시 함수로 작동합니다.Serves as the default hash function. (다음에서 상속됨 Object) 현재 인스턴스의 Type을 가져옵니다.Gets the Type of the current instance. (다음에서 상속됨 Object) 현재 Object의 단순 복사본을 만듭니다.Creates a shallow copy of the current Object. (다음에서 상속됨 Object) 현재 개체를 나타내는 문자열을 반환합니다.Returns a string that represents the current object. (다음에서 상속됨 Object)