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MembershipProvider.EncryptPassword Method (Byte[], MembershipPasswordCompatibilityMode)

Encrypts the specified password using the specified password-compatibility mode.

Namespace:  System.Web.Security
Assembly:  System.Web.ApplicationServices (in System.Web.ApplicationServices.dll)
abstract EncryptPassword : 
        password:byte[] * 
        legacyPasswordCompatibilityMode:MembershipPasswordCompatibilityMode -> byte[] 
override EncryptPassword : 
        password:byte[] * 
        legacyPasswordCompatibilityMode:MembershipPasswordCompatibilityMode -> byte[] 


Type: System.Byte[]

A byte array that contains the password to encrypt.

Type: System.Web.Configuration.MembershipPasswordCompatibilityMode

The membership password-compatibility mode.

Return Value

Type: System.Byte[]
A byte array that contains the encrypted password.

The ValidationKey property or DecryptionKey property is set to AutoGenerate.


This method is not available. This can occur if the application targets the .NET Framework 4 Client Profile. To prevent this exception, override the method, or change the application to target the full version of the .NET Framework.

.NET Framework

Supported in: 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, 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.

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