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DataProtector.Unprotect Method

.NET Framework 4.5

Unprotects the specified protected data.

Namespace:  System.Security.Cryptography
Assembly:  System.Security (in System.Security.dll)

member Unprotect : 
        encryptedData:byte[] -> byte[] 


Type: System.Byte[]

The encrypted data to be unprotected.

Return Value

Type: System.Byte[]
A byte array that contains the plain-text data.


encryptedData is a null reference (Nothing in Visual Basic).


encryptedData contained an invalid purpose.

.NET Framework

Supported in: 4.6, 4.5

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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