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NetworkCredential Class

Provides credentials for password-based authentication schemes such as basic, digest, NTLM, and Kerberos authentication.

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

public class NetworkCredential : ICredentials, 

The NetworkCredential class is a base class that supplies credentials in password-based authentication schemes such as basic, digest, NTLM, and Kerberos. Classes that implement the ICredentials interface, such as the CredentialCache class, return NetworkCredential objects.

This class does not support public key-based authentication methods such as Secure Sockets Layer (SSL) client authentication.

The following code example associates a NetworkCredential object with a set of Uniform Resource Identifiers (URIs) in a CredentialCache. It then passes the CredentialCache to a WebRequest object, which uses it to authenticate requests to an Internet server.

NetworkCredential myCred = new NetworkCredential(

CredentialCache myCache = new CredentialCache();

myCache.Add(new Uri(""), "Basic", myCred);
myCache.Add(new Uri(""), "Basic", myCred);

WebRequest wr = WebRequest.Create("");
wr.Credentials = myCache;
NetworkCredential* myCred = new NetworkCredential(

CredentialCache* myCache = new CredentialCache();

myCache->Add(new Uri(S""), S"Basic", myCred);
myCache->Add(new Uri(S""), S"Basic", myCred);

WebRequest* wr = WebRequest::Create(S"");
wr->Credentials = myCache;


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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0