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SignerInfo Class

Note: This class is new in the .NET Framework version 2.0.

The SignerInfo class represents a signer associated with a SignedCms object that represents a CMS/PKCS #7 message.

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

public sealed class SignerInfo
public final class SignerInfo
public final class SignerInfo

The signatures represented by the SignerInfo class can be either over message content or a signature. The latter kind of signature is referred to as a countersignature.

This implementation of CMS/PKCS #7 supports only one level of countersignature. That is, a signature can be signed, which forms a countersignature, but that countersignature cannot be signed again.

This class does not have a public constructor; therefore, it cannot be publicly instantiated. It is a read-only class accessible from the SignedCms.SignerInfos property.

System.Object
  System.Security.Cryptography.Pkcs.SignerInfo
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 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0
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