DSASignatureDeformatter Konstruktorer
Definition
Viktigt
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Initierar en ny instans av DSASignatureDeformatter klassen.
Överlagringar
| Name | Description |
|---|---|
| DSASignatureDeformatter() |
Initierar en ny instans av DSASignatureDeformatter klassen. |
| DSASignatureDeformatter(AsymmetricAlgorithm) |
Initierar en ny instans av DSASignatureDeformatter klassen med den angivna nyckeln. |
DSASignatureDeformatter()
Initierar en ny instans av DSASignatureDeformatter klassen.
public:
DSASignatureDeformatter();public DSASignatureDeformatter();Public Sub New ()Exempel
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
Se även
Gäller för
DSASignatureDeformatter(AsymmetricAlgorithm)
Initierar en ny instans av DSASignatureDeformatter klassen med den angivna nyckeln.
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.DSASignatureDeformatterPublic Sub New (key As AsymmetricAlgorithm)Parametrar
Instansen av algoritmen för digital signatur (DSA) som innehåller nyckeln.
Undantag
key är null.
