RSAPKCS1SignatureDeformatterとは何? わかりやすく解説 Weblio辞書

RSAPKCS1SignatureDeformatterとは? わかりやすく解説

RSAPKCS1SignatureDeformatter クラス

RSA PKCS #1 Version 1.5署名検証します。

名前空間: System.Security.Cryptography
アセンブリ: mscorlib (mscorlib.dll 内)
構文構文

<ComVisibleAttribute(True)> _
Public Class RSAPKCS1SignatureDeformatter
    Inherits AsymmetricSignatureDeformatter
Dim instance As RSAPKCS1SignatureDeformatter
[ComVisibleAttribute(true)] 
public class RSAPKCS1SignatureDeformatter :
 AsymmetricSignatureDeformatter
[ComVisibleAttribute(true)] 
public ref class RSAPKCS1SignatureDeformatter
 : public AsymmetricSignatureDeformatter
/** @attribute ComVisibleAttribute(true) */ 
public class RSAPKCS1SignatureDeformatter extends
 AsymmetricSignatureDeformatter
ComVisibleAttribute(true) 
public class RSAPKCS1SignatureDeformatter extends
 AsymmetricSignatureDeformatter
解説解説
使用例使用例

RSAPKCS1SignatureFormatter クラス使用してデジタル署名作成した後、RSAPKCS1SignatureDeformatter クラス使用してその署名検証する方法次のコード例示します

Imports System
Imports System.Security.Cryptography

 _

Class RSASample


    Shared Sub Main()
        Try
            'Create a new instance of RSACryptoServiceProvider.
            Dim RSA As New
 RSACryptoServiceProvider()

            'The hash to sign.
            Dim Hash As Byte()
 = {59, 4, 248, 102, 77, 97, 142, 201, 210, 12, 224, 93, 25, 41, 100, 197, 213,
 134, 130, 135}

            'Create an RSAOPKCS1SignatureFormatter object and pass it
 the 
            'RSACryptoServiceProvider to transfer the key information.
            Dim RSAFormatter As New
 RSAPKCS1SignatureFormatter(RSA)

            'Set the hash algorithm to SHA1.
            RSAFormatter.SetHashAlgorithm("SHA1")

            'Create a signature for HashValue and return it.
            Dim SignedHash As Byte()
 = RSAFormatter.CreateSignature(Hash)

            'Create an RSAPKCS1SignatureDeformatter object and pass
 it the 
            'RSACryptoServiceProvider to transfer the key information.
            Dim RSADeformatter As New
 RSAPKCS1SignatureDeformatter(RSA)

            RSADeformatter.SetHashAlgorithm("SHA1")

            'Verify the hash and display the results to the console.
            If RSADeformatter.VerifySignature(Hash, SignedHash)
 Then
                Console.WriteLine("The signature was verified.")
            Else
                Console.WriteLine("The signature was not verified.")
            End If

        Catch e As CryptographicException
            Console.WriteLine(e.Message)
        End Try
    End Sub
End Class
using System;
using System.Security.Cryptography;

class RSASample
{
        
    static void Main()
    {
        try
        {
            //Create a new instance of RSACryptoServiceProvider.
            RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();

            //The hash to sign.
            byte[] Hash = {59,4,248,102,77,97,142,201,210,12,224,93,25,41,100,197
,213,134,130,135};

            //Create an RSAOPKCS1SignatureFormatter object and pass
 it the 
            //RSACryptoServiceProvider to transfer the key information.
            RSAPKCS1SignatureFormatter RSAFormatter = new RSAPKCS1SignatureFormatter(RSA);

            //Set the hash algorithm to SHA1.
            RSAFormatter.SetHashAlgorithm("SHA1");

            //Create a signature for HashValue and return it.
            byte[] SignedHash = RSAFormatter.CreateSignature(Hash);

            //Create an RSAPKCS1SignatureDeformatter object and pass
 it the 
            //RSACryptoServiceProvider to transfer the key information.
            RSAPKCS1SignatureDeformatter RSADeformatter = new
 RSAPKCS1SignatureDeformatter(RSA);

            RSADeformatter.SetHashAlgorithm("SHA1");

            //Verify the hash and display the results to the console.
            if(RSADeformatter.VerifySignature(Hash, SignedHash))
            {
                Console.WriteLine("The signature was verified.");
            }
            else
            {
                Console.WriteLine("The signature was not verified.");
            }

        }
        catch(CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
    }

}
#using <System.dll>

using namespace System;
using namespace System::Security::Cryptography;
int main()
{
   try
   {
      
      //Create a new instance of RSACryptoServiceProvider.
      RSACryptoServiceProvider^ RSA = gcnew RSACryptoServiceProvider;
      
      //The hash to sign.
      array<Byte>^Hash = {59,4,248,102,77,97,142,201,210,12,224,93,25,41,100
,197,213,134,130,135};
      
      //Create an RSAOPKCS1SignatureFormatter object and pass it the
 
      //RSACryptoServiceProvider to transfer the key information.
      RSAPKCS1SignatureFormatter^ RSAFormatter = gcnew RSAPKCS1SignatureFormatter(
 RSA );
      
      //Set the hash algorithm to SHA1.
      RSAFormatter->SetHashAlgorithm( "SHA1" );
      
      //Create a signature for HashValue and return it.
      array<Byte>^SignedHash = RSAFormatter->CreateSignature( Hash );
      
      //Create an RSAPKCS1SignatureDeformatter object and pass it the
 
      //RSACryptoServiceProvider to transfer the key information.
      RSAPKCS1SignatureDeformatter^ RSADeformatter = gcnew RSAPKCS1SignatureDeformatter(
 RSA );
      RSADeformatter->SetHashAlgorithm( "SHA1" );
      
      //Verify the hash and display the results to the console.
      if ( RSADeformatter->VerifySignature( Hash, SignedHash
 ) )
      {
         Console::WriteLine( "The signature was verified." );
      }
      else
      {
         Console::WriteLine( "The signature was not verified." );
      }
   }
   catch ( CryptographicException^ e ) 
   {
      Console::WriteLine( e->Message );
   }

}

import System.*;
import System.Security.Cryptography.*;

class RSASample
{
    public static void main(String[]
 args)
    {
        try {
            // Create a new instance of RSACryptoServiceProvider.
            RSACryptoServiceProvider rsa =  new RSACryptoServiceProvider();
            
            //The hash to sign.
            ubyte hash[] =  {59, 4, 248, 102, 77, 97, 142, 201, 210, 12, 224, 
                93, 25, 41, 100, 197, 213, 134, 130, 135};
            
            // Create an RSAOPKCS1SignatureFormatter object and pass
 it the 
            // RSACryptoServiceProvider to transfer the key information.
            RSAPKCS1SignatureFormatter rsaFormatter =  
                new RSAPKCS1SignatureFormatter(rsa);
            
            // Set the hash algorithm to SHA1.
            rsaFormatter.SetHashAlgorithm("SHA1");
            
            // Create a signature for HashValue and return it.
            ubyte signedHash[] = rsaFormatter.CreateSignature(hash);
            
            // Create an RSAPKCS1SignatureDeformatter object and pass
 it the 
            // RSACryptoServiceProvider to transfer the key information.
            RSAPKCS1SignatureDeformatter rsaDeformatter =  
                new RSAPKCS1SignatureDeformatter(rsa);
            
            rsaDeformatter.SetHashAlgorithm("SHA1");
            
            // Verify the hash and display the results to the console.
            if (rsaDeformatter.VerifySignature(hash, signedHash))
 {
                Console.WriteLine("The signature was verified.");
            }
            else {
                Console.WriteLine("The signature was not verified.");
            }
        } 
        catch (CryptographicException e) {
            Console.WriteLine(e.get_Message());
        }
    } //main
} //RSASample
継承階層継承階層
System.Object
   System.Security.Cryptography.AsymmetricSignatureDeformatter
    System.Security.Cryptography.RSAPKCS1SignatureDeformatter
スレッド セーフスレッド セーフ
この型の public static (Visual Basic では Shared) メンバはすべて、スレッド セーフです。インスタンス メンバ場合は、スレッド セーフであるとは限りません。
プラットフォームプラットフォーム
バージョン情報バージョン情報
参照参照
関連項目
RSAPKCS1SignatureDeformatter メンバ
System.Security.Cryptography 名前空間
その他の技術情報
暗号サービス

RSAPKCS1SignatureDeformatter コンストラクタ ()


RSAPKCS1SignatureDeformatter コンストラクタ

RSAPKCS1SignatureDeformatter クラス新しインスタンス初期化します。
オーバーロードの一覧オーバーロードの一覧

名前 説明
RSAPKCS1SignatureDeformatter () RSAPKCS1SignatureDeformatter クラス新しインスタンス初期化します。

.NET Compact Framework によってサポートされています。

RSAPKCS1SignatureDeformatter (AsymmetricAlgorithm) 指定したキー使用してRSAPKCS1SignatureDeformatter クラス新しインスタンス初期化します。

.NET Compact Framework によってサポートされています。

参照参照

関連項目

RSAPKCS1SignatureDeformatter クラス
RSAPKCS1SignatureDeformatter メンバ
System.Security.Cryptography 名前空間

その他の技術情報

暗号サービス

RSAPKCS1SignatureDeformatter コンストラクタ (AsymmetricAlgorithm)

指定したキー使用して、RSAPKCS1SignatureDeformatter クラス新しインスタンス初期化します。

名前空間: System.Security.Cryptography
アセンブリ: mscorlib (mscorlib.dll 内)
構文構文

Public Sub New ( _
    key As AsymmetricAlgorithm _
)
Dim key As AsymmetricAlgorithm

Dim instance As New RSAPKCS1SignatureDeformatter(key)
public RSAPKCS1SignatureDeformatter (
    AsymmetricAlgorithm key
)
public:
RSAPKCS1SignatureDeformatter (
    AsymmetricAlgorithm^ key
)
public RSAPKCS1SignatureDeformatter (
    AsymmetricAlgorithm key
)
public function RSAPKCS1SignatureDeformatter
 (
    key : AsymmetricAlgorithm
)

パラメータ

key

公開キー保持している RSAインスタンス

解説解説

VerifySignature を呼び出す前に、SetHashAlgorithm を使用してハッシュ アルゴリズム設定します

使用例使用例

RSAPKCS1SignatureFormatter クラス使用してデジタル署名作成した後、RSAPKCS1SignatureDeformatter クラス使用してその署名検証する方法次のコード例示します

Imports System
Imports System.Security.Cryptography

 _

Class RSASample


    Shared Sub Main()
        Try
            'Create a new instance of RSACryptoServiceProvider.
            Dim RSA As New
 RSACryptoServiceProvider()

            'The hash to sign.
            Dim Hash As Byte()
 = {59, 4, 248, 102, 77, 97, 142, 201, 210, 12, 224, 93, 25, 41, 100, 197, 213,
 134, 130, 135}

            'Create an RSAOPKCS1SignatureFormatter object and pass it
 the 
            'RSACryptoServiceProvider to transfer the key information.
            Dim RSAFormatter As New
 RSAPKCS1SignatureFormatter(RSA)

            'Set the hash algorithm to SHA1.
            RSAFormatter.SetHashAlgorithm("SHA1")

            'Create a signature for HashValue and return it.
            Dim SignedHash As Byte()
 = RSAFormatter.CreateSignature(Hash)

            'Create an RSAPKCS1SignatureDeformatter object and pass
 it the 
            'RSACryptoServiceProvider to transfer the key information.
            Dim RSADeformatter As New
 RSAPKCS1SignatureDeformatter(RSA)

            RSADeformatter.SetHashAlgorithm("SHA1")

            'Verify the hash and display the results to the console.
            If RSADeformatter.VerifySignature(Hash, SignedHash)
 Then
                Console.WriteLine("The signature was verified.")
            Else
                Console.WriteLine("The signature was not verified.")
            End If

        Catch e As CryptographicException
            Console.WriteLine(e.Message)
        End Try
    End Sub
End Class
using System;
using System.Security.Cryptography;

class RSASample
{
        
    static void Main()
    {
        try
        {
            //Create a new instance of RSACryptoServiceProvider.
            RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();

            //The hash to sign.
            byte[] Hash = {59,4,248,102,77,97,142,201,210,12,224,93,25,41,100,197
,213,134,130,135};

            //Create an RSAOPKCS1SignatureFormatter object and pass
 it the 
            //RSACryptoServiceProvider to transfer the key information.
            RSAPKCS1SignatureFormatter RSAFormatter = new RSAPKCS1SignatureFormatter(RSA);

            //Set the hash algorithm to SHA1.
            RSAFormatter.SetHashAlgorithm("SHA1");

            //Create a signature for HashValue and return it.
            byte[] SignedHash = RSAFormatter.CreateSignature(Hash);

            //Create an RSAPKCS1SignatureDeformatter object and pass
 it the 
            //RSACryptoServiceProvider to transfer the key information.
            RSAPKCS1SignatureDeformatter RSADeformatter = new
 RSAPKCS1SignatureDeformatter(RSA);

            RSADeformatter.SetHashAlgorithm("SHA1");

            //Verify the hash and display the results to the console.
            if(RSADeformatter.VerifySignature(Hash, SignedHash))
            {
                Console.WriteLine("The signature was verified.");
            }
            else
            {
                Console.WriteLine("The signature was not verified.");
            }

        }
        catch(CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
    }

}
#using <System.dll>

using namespace System;
using namespace System::Security::Cryptography;
int main()
{
   try
   {
      
      //Create a new instance of RSACryptoServiceProvider.
      RSACryptoServiceProvider^ RSA = gcnew RSACryptoServiceProvider;
      
      //The hash to sign.
      array<Byte>^Hash = {59,4,248,102,77,97,142,201,210,12,224,93,25,41,100
,197,213,134,130,135};
      
      //Create an RSAOPKCS1SignatureFormatter object and pass it the
 
      //RSACryptoServiceProvider to transfer the key information.
      RSAPKCS1SignatureFormatter^ RSAFormatter = gcnew RSAPKCS1SignatureFormatter(
 RSA );
      
      //Set the hash algorithm to SHA1.
      RSAFormatter->SetHashAlgorithm( "SHA1" );
      
      //Create a signature for HashValue and return it.
      array<Byte>^SignedHash = RSAFormatter->CreateSignature( Hash );
      
      //Create an RSAPKCS1SignatureDeformatter object and pass it the
 
      //RSACryptoServiceProvider to transfer the key information.
      RSAPKCS1SignatureDeformatter^ RSADeformatter = gcnew RSAPKCS1SignatureDeformatter(
 RSA );
      RSADeformatter->SetHashAlgorithm( "SHA1" );
      
      //Verify the hash and display the results to the console.
      if ( RSADeformatter->VerifySignature( Hash, SignedHash
 ) )
      {
         Console::WriteLine( "The signature was verified." );
      }
      else
      {
         Console::WriteLine( "The signature was not verified." );
      }
   }
   catch ( CryptographicException^ e ) 
   {
      Console::WriteLine( e->Message );
   }

}

import System.*;
import System.Security.Cryptography.*;

class RSASample
{
    public static void main(String[]
 args)
    {
        try {
            // Create a new instance of RSACryptoServiceProvider.
            RSACryptoServiceProvider rsa =  new RSACryptoServiceProvider();
            
            //The hash to sign.
            ubyte hash[] =  {59, 4, 248, 102, 77, 97, 142, 201, 210, 12, 224, 
                93, 25, 41, 100, 197, 213, 134, 130, 135};
            
            // Create an RSAOPKCS1SignatureFormatter object and pass
 it the 
            // RSACryptoServiceProvider to transfer the key information.
            RSAPKCS1SignatureFormatter rsaFormatter =  
                new RSAPKCS1SignatureFormatter(rsa);
            
            // Set the hash algorithm to SHA1.
            rsaFormatter.SetHashAlgorithm("SHA1");
            
            // Create a signature for HashValue and return it.
            ubyte signedHash[] = rsaFormatter.CreateSignature(hash);
            
            // Create an RSAPKCS1SignatureDeformatter object and pass
 it the 
            // RSACryptoServiceProvider to transfer the key information.
            RSAPKCS1SignatureDeformatter rsaDeformatter =  
                new RSAPKCS1SignatureDeformatter(rsa);
            
            rsaDeformatter.SetHashAlgorithm("SHA1");
            
            // Verify the hash and display the results to the console.
            if (rsaDeformatter.VerifySignature(hash, signedHash))
 {
                Console.WriteLine("The signature was verified.");
            }
            else {
                Console.WriteLine("The signature was not verified.");
            }
        } 
        catch (CryptographicException e) {
            Console.WriteLine(e.get_Message());
        }
    } //main
} //RSASample
プラットフォームプラットフォーム
バージョン情報バージョン情報
参照参照
関連項目
RSAPKCS1SignatureDeformatter クラス
RSAPKCS1SignatureDeformatter メンバ
System.Security.Cryptography 名前空間
その他の技術情報
暗号サービス

RSAPKCS1SignatureDeformatter メソッド


パブリック メソッドパブリック メソッド

プロテクト メソッドプロテクト メソッド
参照参照

関連項目

RSAPKCS1SignatureDeformatter クラス
System.Security.Cryptography 名前空間

その他の技術情報

暗号サービス

RSAPKCS1SignatureDeformatter メンバ

RSA PKCS #1 Version 1.5署名検証します。

RSAPKCS1SignatureDeformatter データ型公開されるメンバを以下の表に示します


パブリック コンストラクタパブリック コンストラクタ
  名前 説明
パブリック メソッド RSAPKCS1SignatureDeformatter オーバーロードされます。 RSAPKCS1SignatureDeformatter クラス新しインスタンス初期化します。
パブリック メソッドパブリック メソッド
プロテクト メソッドプロテクト メソッド
参照参照

関連項目

RSAPKCS1SignatureDeformatter クラス
System.Security.Cryptography 名前空間

その他の技術情報

暗号サービス



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