本文整理匯總了VB.NET中System.Security.Cryptography.X509Certificates.X509EnhancedKeyUsageExtension.X509EnhancedKeyUsageExtension構造函數的典型用法代碼示例。如果您正苦於以下問題：VB.NET X509EnhancedKeyUsageExtension構造函數的具體用法？VB.NET X509EnhancedKeyUsageExtension怎麽用？VB.NET X509EnhancedKeyUsageExtension使用的例子？那麽, 這裏精選的構造函數代碼示例或許可以為您提供幫助。您也可以進一步了解該構造函數所在類System.Security.Cryptography.X509Certificates.X509EnhancedKeyUsageExtension的用法示例。
在下文中一共展示了X509EnhancedKeyUsageExtension構造函數的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: CertSelect
' 導入命名空間
Imports System.Security.Cryptography
Imports System.Security.Cryptography.X509Certificates
Module CertSelect
Sub Main()
Try
Dim store As New X509Store("MY", StoreLocation.CurrentUser)
store.Open(OpenFlags.ReadOnly Or OpenFlags.OpenExistingOnly)
Dim collection As X509Certificate2Collection = CType(store.Certificates, X509Certificate2Collection)
For i As Integer = 0 To collection.Count - 1
Dim extension As X509Extension
For Each extension In collection(i).Extensions
Console.WriteLine(extension.Oid.FriendlyName + "(" + extension.Oid.Value + ")")
If extension.Oid.FriendlyName = "Key Usage" Then
Dim ext As X509KeyUsageExtension = CType(extension, X509KeyUsageExtension)
Console.WriteLine(ext.KeyUsages)
End If
If extension.Oid.FriendlyName = "Basic Constraints" Then
Dim ext As X509BasicConstraintsExtension = CType(extension, X509BasicConstraintsExtension)
Console.WriteLine(ext.CertificateAuthority)
Console.WriteLine(ext.HasPathLengthConstraint)
Console.WriteLine(ext.PathLengthConstraint)
End If
If extension.Oid.FriendlyName = "Subject Key Identifier" Then
Dim ext As X509SubjectKeyIdentifierExtension = CType(extension, X509SubjectKeyIdentifierExtension)
Console.WriteLine(ext.SubjectKeyIdentifier)
End If
If extension.Oid.FriendlyName = "Enhanced Key Usage" Then
Dim ext As X509EnhancedKeyUsageExtension = CType(extension, X509EnhancedKeyUsageExtension)
Dim oids As OidCollection = ext.EnhancedKeyUsages
Dim oid As Oid
For Each oid In oids
Console.WriteLine(oid.FriendlyName + "(" + oid.Value + ")")
Next oid
End If
Next extension
Next i
store.Close()
Catch
Console.WriteLine("Information could not be written out for this certificate.")
End Try
End Sub
End Module開發者ID:VB.NET開發者，項目名稱:System.Security.Cryptography.X509Certificates，代碼行數:54，代碼來源:X509EnhancedKeyUsageExtension