HttpCookie.Secure Property

Gets or sets a value indicating whether to transmit the cookie using Secure Sockets Layer (SSL)--that is, over HTTPS only.

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

public bool Secure { get; set; }
/** @property */
public boolean get_Secure ()

/** @property */
public void set_Secure (boolean value)

public function get Secure () : boolean

public function set Secure (value : boolean)

Property Value

true to transmit the cookie over an SSL connection (HTTPS); otherwise, false. The default value is false.

To set the transmission of cookies using SSL for an entire application, enable it in the application's configuration file, Web.config, which resides in the root directory of the application. For more information, see httpCookies Element (ASP.NET Settings Schema). Values set programmatically using the Secure property override values set in the Web.config file.

When dealing with sensitive information, it is strongly recommended that you use HTTPS protocol with SSL encryption. SSL protects against data being altered (data integrity), protects a user's identity (confidentiality), and assures that data originates from the expected client (authentication). For more information on the benefits of encryption, see Cryptography Overview. For more information about configuring SSL on an Internet Information Services (IIS) Web server, see Configuring SSL on a Web Server or a Web Site.

The following code example takes action if the cookie is set to transmit using SSL.

if (MyCookie.Secure)

if (myCookie.get_Secure()) {


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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