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SignedCms Class

The SignedCms class enables signing and verifying of CMS/PKCS #7 messages.

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

public sealed class SignedCms
public final class SignedCms
public final class SignedCms
Not applicable.

The Cryptographic Message Syntax RFC specifies the following MIME types and file name extensions for CMS/PKCS #7 messages with these content types.

Content type

MIME type

Extension

envelopedData

application/pkcs7-mime

.p7m

signedData

application/pkcs7-signature

.p7s.p7c

System.Object
  System.Security.Cryptography.Pkcs.SignedCms

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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