X509NameType Enumeration
Specifies the type of name the X509 certificate contains.
Assembly: System (in System.dll)
| Member name | Description | |
|---|---|---|
| DnsFromAlternativeName | The DNS name associated with the alternative name of either the subject or the issuer of an X.509 certificate. This value is equivalent to the DnsName value. | |
| DnsName | The DNS name associated with the alternative name of either the subject or issuer of an X509 certificate. | |
| EmailName | The email address of the subject or issuer associated of an X509 certificate. | |
| SimpleName | The simple name of a subject or issuer of an X509 certificate. | |
| UpnName | The UPN name of the subject or issuer of an X509 certificate. | |
| UrlName | The URL address associated with the alternative name of either the subject or issuer of an X509 certificate. |
The name type can be a simple name, an email address, a User Principal Name (UPN), a Domain Name System (DNS) name or a URL. An X509 certificate can have one or more of these names. You can obtain the name of a certificate using the method GetNameInfo.
The following example opens the current user certificate store, selects only active certificates, then allows the user to select one or more certificates. The example then writes certificate information to the console.
Imports System Imports System.Security.Cryptography Imports System.Security.Permissions Imports System.IO Imports System.Security.Cryptography.X509Certificates Class CertSelect Shared Sub Main() Dim store As New X509Store("MY", StoreLocation.CurrentUser) store.Open(OpenFlags.ReadOnly Or OpenFlags.OpenExistingOnly) Dim collection As X509Certificate2Collection = CType(store.Certificates, X509Certificate2Collection) Dim fcollection As X509Certificate2Collection = CType(collection.Find(X509FindType.FindByTimeValid, DateTime.Now, False), X509Certificate2Collection) Dim scollection As X509Certificate2Collection = X509Certificate2UI.SelectFromCollection(fcollection, "Test Certificate Select", "Select a certificate from the following list to get information on that certificate", X509SelectionFlag.MultiSelection) Console.WriteLine("Number of certificates: {0}{1}", scollection.Count, Environment.NewLine) For Each x509 As X509Certificate2 In scollection Try Dim rawdata As Byte() = x509.RawData Console.WriteLine("Content Type: {0}{1}", X509Certificate2.GetCertContentType(rawdata), Environment.NewLine) Console.WriteLine("Friendly Name: {0}{1}", x509.FriendlyName, Environment.NewLine) Console.WriteLine("Certificate Verified?: {0}{1}", x509.Verify(), Environment.NewLine) Console.WriteLine("Simple Name: {0}{1}", x509.GetNameInfo(X509NameType.SimpleName, True), Environment.NewLine) Console.WriteLine("Signature Algorithm: {0}{1}", x509.SignatureAlgorithm.FriendlyName, Environment.NewLine) Console.WriteLine("Private Key: {0}{1}", x509.PrivateKey.ToXmlString(False), Environment.NewLine) Console.WriteLine("Public Key: {0}{1}", x509.PublicKey.Key.ToXmlString(False), Environment.NewLine) Console.WriteLine("Certificate Archived?: {0}{1}", x509.Archived, Environment.NewLine) Console.WriteLine("Length of Raw Data: {0}{1}", x509.RawData.Length, Environment.NewLine) X509Certificate2UI.DisplayCertificate(x509) x509.Reset() Catch cExcept As CryptographicException Console.WriteLine("Information could not be written out for this certificate.") End Try Next x509 store.Close() End Sub End Class
Available since 2.0