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HttpRequest.ClientCertificate Property

Gets the current request's client security certificate.

Namespace:  System.Web
Assembly:  System.Web (in System.Web.dll)

'Declaration
Public ReadOnly Property ClientCertificate As HttpClientCertificate

Property Value

Type: System.Web.HttpClientCertificate
An HttpClientCertificate object containing information about the client's security certificate settings.

The following code example sends the client's certificate settings back to the client in an HTML page.

Dim cs As HttpClientCertificate = Request.ClientCertificate

Response.Write("<p>Client Certificate settings:</p>")
Response.Write("Certificate = " & cs.Certificate.ToString() & "<br>")
Response.Write("Cookie = " & cs.Cookie & "<br>")
Response.Write("Flags = " & cs.Flags & "<br>")
Response.Write("IsPresent = " & cs.IsPresent & "<br>")
Response.Write("Issuer = " & cs.Issuer & "<br>")
Response.Write("IsValid = " & cs.IsValid & "<br>")
Response.Write("KeySize = " & cs.KeySize & "<br>")
Response.Write("SecretKeySize = " & cs.SecretKeySize & "<br>")
Response.Write("SerialNumber = " & cs.SerialNumber & "<br>")
Response.Write("ServerIssuer = " & cs.ServerIssuer & "<br>")
Response.Write("ServerSubject = " & cs.ServerSubject & "<br>")
Response.Write("Subject = " & cs.Subject & "<br>")
Response.Write("ValidFrom = " & cs.ValidFrom & "<br>")
Response.Write("ValidUntil = " & cs.ValidUntil & "<br>")
Response.Write("What's this = " & cs.ToString() & "<br>")

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
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