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EnvelopedCms.Decode Method

The Decode method decodes the specified enveloped CMS/PKCS #7 message and resets all member variables in the EnvelopedCms object.

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

public void Decode(
	byte[] encodedMessage


Type: System.Byte[]

An array of byte values that represent the information to be decoded.


A null reference was passed to a method that does not accept it as a valid argument.

This method should be called before EnvelopedCms.Decrypt() or any other EnvelopedCms.Decrypt method.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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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