DSASignatureDeformatter 클래스
디지털 서명 알고리즘(DSA) PKCS#1 v1.5 서명을 확인합니다.
네임스페이스: System.Security.Cryptography
어셈블리: mscorlib(mscorlib.dll)
구문
‘선언
<ComVisibleAttribute(True)> _
Public Class DSASignatureDeformatter
Inherits AsymmetricSignatureDeformatter
‘사용 방법
Dim instance As DSASignatureDeformatter
[ComVisibleAttribute(true)]
public class DSASignatureDeformatter : AsymmetricSignatureDeformatter
[ComVisibleAttribute(true)]
public ref class DSASignatureDeformatter : public AsymmetricSignatureDeformatter
/** @attribute ComVisibleAttribute(true) */
public class DSASignatureDeformatter extends AsymmetricSignatureDeformatter
ComVisibleAttribute(true)
public class DSASignatureDeformatter extends AsymmetricSignatureDeformatter
예제
Imports System
Imports System.Security.Cryptography
_
Class DSASample
Shared Sub Main()
Try
'Create a new instance of DSACryptoServiceProvider.
Dim DSA As New DSACryptoServiceProvider()
'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 DSASignatureFormatter object and pass it the
'DSACryptoServiceProvider to transfer the key information.
Dim DSAFormatter As New DSASignatureFormatter(DSA)
'Set the hash algorithm to SHA1.
DSAFormatter.SetHashAlgorithm("SHA1")
'Create a signature for HashValue and return it.
Dim SignedHash As Byte() = DSAFormatter.CreateSignature(Hash)
'Create an DSASignatureDeformatter object and pass it the
'DSACryptoServiceProvider to transfer the key information.
Dim DSADeformatter As New DSASignatureDeformatter(DSA)
'Verify the hash and display the results to the console.
If DSADeformatter.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 DSASample
{
static void Main()
{
try
{
//Create a new instance of DSACryptoServiceProvider.
DSACryptoServiceProvider DSA = new DSACryptoServiceProvider();
//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 DSASignatureFormatter object and pass it the
//DSACryptoServiceProvider to transfer the key information.
DSASignatureFormatter DSAFormatter = new DSASignatureFormatter(DSA);
//Set the hash algorithm to SHA1.
DSAFormatter.SetHashAlgorithm("SHA1");
//Create a signature for HashValue and return it.
byte[] SignedHash = DSAFormatter.CreateSignature(Hash);
//Create an DSASignatureDeformatter object and pass it the
//DSACryptoServiceProvider to transfer the key information.
DSASignatureDeformatter DSADeformatter = new DSASignatureDeformatter(DSA);
//Verify the hash and display the results to the console.
if(DSADeformatter.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 DSACryptoServiceProvider.
DSACryptoServiceProvider^ DSA = gcnew DSACryptoServiceProvider;
//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 DSASignatureFormatter object and pass it the
//DSACryptoServiceProvider to transfer the key information.
DSASignatureFormatter^ DSAFormatter = gcnew DSASignatureFormatter( DSA );
//Set the hash algorithm to SHA1.
DSAFormatter->SetHashAlgorithm( "SHA1" );
//Create a signature for HashValue and return it.
array<Byte>^SignedHash = DSAFormatter->CreateSignature( Hash );
//Create an DSASignatureDeformatter object and pass it the
//DSACryptoServiceProvider to transfer the key information.
DSASignatureDeformatter^ DSADeformatter = gcnew DSASignatureDeformatter( DSA );
//Verify the hash and display the results to the console.
if ( DSADeformatter->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 DSASample
{
public static void main(String[] args)
{
try {
// Create a new instance of DSACryptoServiceProvider.
DSACryptoServiceProvider dsa = new DSACryptoServiceProvider();
// 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 DSASignatureFormatter object and pass it the
// DSACryptoServiceProvider to transfer the key information.
DSASignatureFormatter dsaFormatter = new DSASignatureFormatter(dsa);
// Set the hash algorithm to SHA1.
dsaFormatter.SetHashAlgorithm("SHA1");
// Create a signature for HashValue and return it.
ubyte signedHash[] = dsaFormatter.CreateSignature(hash);
// Create an DSASignatureDeformatter object and pass it the
// DSACryptoServiceProvider to transfer the key information.
DSASignatureDeformatter dsaDeformatter =
new DSASignatureDeformatter(dsa);
// Verify the hash and display the results to the console.
if (dsaDeformatter.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
} //DSASample
상속 계층 구조
System.Object
System.Security.Cryptography.AsymmetricSignatureDeformatter
System.Security.Cryptography.DSASignatureDeformatter
스레드로부터의 안전성
이 형식의 모든 public static(Visual Basic의 경우 Shared) 멤버는 스레드로부터 안전합니다. 인터페이스 멤버는 스레드로부터 안전하지 않습니다.
플랫폼
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
.NET Framework에서 모든 플래폼의 모든 버전을 지원하지는 않습니다. 지원되는 버전의 목록은 시스템 요구 사항을 참조하십시오.
버전 정보
.NET Framework
2.0, 1.1, 1.0에서 지원
.NET Compact Framework
2.0에서 지원
참고 항목
참조
DSASignatureDeformatter 멤버
System.Security.Cryptography 네임스페이스