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XpsDigitalSignature Class

Represents a digital signature for an XpsDocument.


Namespace:  System.Windows.Xps.Packaging
Assembly:  ReachFramework (in ReachFramework.dll)

public class XpsDigitalSignature

The XpsDigitalSignature type exposes the following members.

Public methodXpsDigitalSignatureInitializes a new instance of the XpsDigitalSignature class.

Public propertyDocumentPropertiesRestrictedGets a value that indicates whether changing the properties of the document invalidates the digital signature.
Public propertyIdGets the GUID of the signature.
Public propertyIsCertificateAvailableGets a value that indicates whether the signer's X.509 certificate is contained in the document Package.
Public propertySignatureOriginRestrictedGets a value that indicates whether the digital signature is invalidated if someone else signs the package.
Public propertySignatureTypeGets a URL string that identifies the signature type.
Public propertySignatureValueGets the encrypted hash value of the signature.
Public propertySignedDocumentSequenceGets the document sequence reader for the signed document sequence.
Public propertySignerCertificateGets the X.509 certificate of the signer.
Public propertySigningTimeGets the date and time when the signature was created.

Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
Public methodVerify()Verifies the document digital signature against the X.509 certificate embedded in the XPS Package.
Public methodVerify(X509Certificate)Verifies the document digital signature against a specified X.509 certificate.
Public methodVerifyCertificate()Verifies the X.509 certificate embedded in the package.
Public methodStatic memberVerifyCertificate(X509Certificate)Verifies the specified X.509 certificate.

Use XpsDigitalSignature instead of PackageDigitalSignature when you work with an XPS document.  PackageDigitalSignature is not XPS-aware, and does not guarantee that all parts in an XPS document are fully signed.

For more information about digital signatures, see the MSDN article Digital Signing Framework of the Open Packaging Conventions available at

For more information about XPS see the XML Paper Specification (XPS) available for download at

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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