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SignedCms Constructor (ContentInfo)

The SignedCms(ContentInfo) constructor creates an instance of the SignedCms class by using the specified content information as the inner content.

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

public SignedCms(
	ContentInfo contentInfo
)

Parameters

contentInfo
Type: System.Security.Cryptography.Pkcs.ContentInfo

A ContentInfo object that specifies the content information as the inner content of the SignedCms message.

ExceptionCondition
ArgumentNullException

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

For the default property values used with this constructor, see SignedCms().

If the detached state is false (the default), the content that is signed is included in the CMS/PKCS #7 message along with the signature information. If the detached state is true, clients that cannot decode S/MIME messages can still see the content of the message if it is sent separately. This might be useful in an archiving application that archives message content whether the message sender can be verified for authenticity.

.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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