DSASignatureDeformatter Construtores

Definição

Espaço de Nomes:
System.Security.Cryptography
Assemblagens:
netstandard.dll, System.Security.Cryptography.dll
Assemblagens:
netstandard.dll, System.Security.Cryptography.Algorithms.dll
Assemblagem:
System.Security.Cryptography.Algorithms.dll
Assemblagem:
mscorlib.dll
Assemblagem:
netstandard.dll

Inicializa uma nova instância da DSASignatureDeformatter classe.

Sobrecargas

Name Description
DSASignatureDeformatter()

Inicializa uma nova instância da DSASignatureDeformatter classe.
DSASignatureDeformatter(AsymmetricAlgorithm)

Inicializa uma nova instância da DSASignatureDeformatter classe com a chave especificada.

DSASignatureDeformatter()

Origem:
DSASignatureDeformatter.cs
Origem:
DSASignatureDeformatter.cs
Origem:
DSASignatureDeformatter.cs
Origem:
DSASignatureDeformatter.cs
Origem:
DSASignatureDeformatter.cs

Inicializa uma nova instância da DSASignatureDeformatter classe.

public:
 DSASignatureDeformatter();
public DSASignatureDeformatter();
Public Sub New ()

Exemplos

using System;
using System.Security.Cryptography;

class DSASample
{
        
    static void Main()
    {
        try
        {
            //Create a new instance of DSA.
            DSA DSA = DSA.Create();

            //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 
            //DSA instance 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 
            //DSA instance 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);
        }
    }
}

Imports System.Security.Cryptography

 _

Class DSASample


    Shared Sub Main()
        Try
            'Create a new instance of DSA.
            Dim DSA As DSA = DSA.Create()

            '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 
            'DSA instance 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 
            'DSA instance 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

Ver também

Aplica-se a

DSASignatureDeformatter(AsymmetricAlgorithm)

Origem:
DSASignatureDeformatter.cs
Origem:
DSASignatureDeformatter.cs
Origem:
DSASignatureDeformatter.cs
Origem:
DSASignatureDeformatter.cs
Origem:
DSASignatureDeformatter.cs

Inicializa uma nova instância da DSASignatureDeformatter classe com a chave especificada.

public:
 DSASignatureDeformatter(System::Security::Cryptography::AsymmetricAlgorithm ^ key);
public DSASignatureDeformatter(System.Security.Cryptography.AsymmetricAlgorithm key);
new System.Security.Cryptography.DSASignatureDeformatter : System.Security.Cryptography.AsymmetricAlgorithm -> System.Security.Cryptography.DSASignatureDeformatter
Public Sub New (key As AsymmetricAlgorithm)

Parâmetros

key
AsymmetricAlgorithm

A instância do Algoritmo de Assinatura Digital (DSA) que detém a chave.

Exceções

ArgumentNullException

key é null.

Ver também

Aplica-se a