MachineKey Class
Provides a way to encrypt or hash data (or both) by using the same algorithms and key values that are used for ASP.NET forms authentication and view state.
Namespace: System.Web.Security
Assembly: System.Web (in System.Web.dll)
The MachineKey type exposes the following members.
| Name | Description | |
|---|---|---|
.gif?cs-save-lang=1&cs-lang=cpp "Public method") .gif?cs-save-lang=1&cs-lang=cpp "Static member") | Decode | Obsolete. Decodes and/or validates data that has been encrypted or provided with a hash-based message authentication code (HMAC). |
| Encode | Obsolete. Encrypts data and/or appends a hash-based message authentication code (HMAC). |
| Protect | Protects the specified data by encrypting or signing it. |
| Unprotect | Unprotects the specified data, which was protected by the Protect method. |
| Exception | Condition |
|---|---|
| ArgumentNullException | The data to encrypt, hash, decrypt, or validate does not exist |
The MachineKey class provides methods that expose the hashing and encryption logic that ASP.NET provides. For information about which encryption and hashing algorithms ASP.NET uses, and the key values that it uses with them, see machineKey Element (ASP.NET Settings Schema).
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
