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EnvelopedCms Constructor (SubjectIdentifierType, ContentInfo)

The EnvelopedCms(SubjectIdentifierType, ContentInfo) constructor creates an instance of the EnvelopedCms class by using the specified subject identifier type and content information. The specified content information is to be used as the inner content type.

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

public EnvelopedCms(
	SubjectIdentifierType recipientIdentifierType,
	ContentInfo contentInfo


Type: System.Security.Cryptography.Pkcs.SubjectIdentifierType

A member of the SubjectIdentifierType enumeration that specifies the means of identifying the recipient.

Type: System.Security.Cryptography.Pkcs.ContentInfo

A ContentInfo object that represents the content and its type.


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 EnvelopedCms().

Subjects can be identified by either the issuer and serial number of their public key certificate or by the key identifier of their public key certificate.

.NET Framework

Supported in: 4.6, 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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