SymmetricAlgorithm.LegalBlockSizes Property
Definition
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.
Gets the block sizes, in bits, that are supported by the symmetric algorithm.
public:
virtual property cli::array <System::Security::Cryptography::KeySizes ^> ^ LegalBlockSizes { cli::array <System::Security::Cryptography::KeySizes ^> ^ get(); };
public virtual System.Security.Cryptography.KeySizes[] LegalBlockSizes { get; }
member this.LegalBlockSizes : System.Security.Cryptography.KeySizes[]
Public Overridable ReadOnly Property LegalBlockSizes As KeySizes()
Property Value
KeySizes[]
An array that contains the block sizes supported by the algorithm.
Examples
The following example shows the value of LegalBlockSizes for the symmetric algorithms.
using System;
using System.Security.Cryptography;
namespace SymmetricAlgo
{
class Program
{
static void Main(string[] args)
{
Aes aes = Aes.Create();
Console.WriteLine("Aes ");
KeySizes[] ks = aes.LegalKeySizes;
foreach (KeySizes k in ks)
{
Console.WriteLine("\tLegal min key size = " + k.MinSize);
Console.WriteLine("\tLegal max key size = " + k.MaxSize);
}
ks = aes.LegalBlockSizes;
foreach (KeySizes k in ks)
{
Console.WriteLine("\tLegal min block size = " + k.MinSize);
Console.WriteLine("\tLegal max block size = " + k.MaxSize);
}
}
}
}
//This sample produces the following output:
//Aes
// Legal min key size = 128
// Legal max key size = 256
// Legal min block size = 128
// Legal max block size = 128
Imports System.Security.Cryptography
Class Program
Shared Sub Main(ByVal args() As String)
Dim aes As Aes = Aes.Create()
Console.WriteLine("Aes ")
Dim ks As KeySizes() = aes.LegalKeySizes
Dim k As KeySizes
For Each k In ks
Console.WriteLine(vbTab + "Legal min key size = " & k.MinSize)
Console.WriteLine(vbTab + "Legal max key size = " & k.MaxSize)
Next k
ks = aes.LegalBlockSizes
For Each k In ks
Console.WriteLine(vbTab + "Legal min block size = " & k.MinSize)
Console.WriteLine(vbTab + "Legal max block size = " & k.MaxSize)
Next k
End Sub
End Class
'This sample produces the following output:
'Aes
' Legal min key size = 128
' Legal max key size = 256
' Legal min block size = 128
' Legal max block size = 128
Remarks
The symmetric algorithm supports only block sizes that match an entry in this array.
Applies to
See also
GitHub で Microsoft と共同作業する
このコンテンツのソースは GitHub にあります。そこで、issue や pull request を作成および確認することもできます。 詳細については、共同作成者ガイドを参照してください。
.NET
フィードバック
https://aka.ms/ContentUserFeedback」を参照してください。
以下は間もなく提供いたします。2024 年を通じて、コンテンツのフィードバック メカニズムとして GitHub の issue を段階的に廃止し、新しいフィードバック システムに置き換えます。 詳細については、「フィードバックの送信と表示