HttpClientCertificate Class

Provides the client certificate fields issued by the client in response to the server's request for the client's identity.

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

public class HttpClientCertificate : NameValueCollection
public class HttpClientCertificate extends NameValueCollection
public class HttpClientCertificate extends NameValueCollection

If a Web browser uses the SSL3.0/PCT1 protocol (the URL begins with https:// instead of http://) to connect to a server and the server requires client certificates, the browser sends the client certificate fields contained in its digital certificate.

For more information on digital certificates, see the document X.509: Public-key and attribute certificate frameworks, available on the International Telecommunication Union (ITU) site at

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

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