PackageDigitalSignatureManager.VerifySignatures(Boolean) Methode

Definitie

Naamruimte:
System.IO.Packaging
Assembly:
WindowsBase.dll

Controleert de handtekeningen op alle ondertekende onderdelen in het pakket.

public:
 System::IO::Packaging::VerifyResult VerifySignatures(bool exitOnFailure);
public System.IO.Packaging.VerifyResult VerifySignatures(bool exitOnFailure);
member this.VerifySignatures : bool -> System.IO.Packaging.VerifyResult
Public Function VerifySignatures (exitOnFailure As Boolean) As VerifyResult

Parameters

exitOnFailure
Boolean

true om bij eerste fout af te sluiten; false als u verder wilt gaan en alle handtekeningen wilt controleren.

Retouren

VerifyResult

Success (waarde 0) als alle handtekeningen zijn geverifieerd; anders een opsomming die de fout identificeert.

Voorbeelden

In het volgende voorbeeld ziet u hoe u deze methode gebruikt om alle ondertekende onderdelen in een pakket te valideren.

// ------------------------ ValidateSignatures ------------------------
/// <summary>
///   Validates all the digital signatures of a given package.</summary>
/// <param name="package">
///   The package for validating digital signatures.</param>
/// <returns>
///   true if all digital signatures are valid; otherwise false if the
///   package is unsigned or any of the signatures are invalid.</returns>
private static bool ValidateSignatures(Package package)
{
    if (package == null)
        throw new ArgumentNullException("ValidateSignatures(package)");

    // Create a PackageDigitalSignatureManager for the given Package.
    PackageDigitalSignatureManager dsm =
        new PackageDigitalSignatureManager(package);

    // Check to see if the package contains any signatures.
    if (!dsm.IsSigned)
        return false;   // The package is not signed.

    // Verify that all signatures are valid.
    VerifyResult result = dsm.VerifySignatures(false);
    if (result != VerifyResult.Success)
        return false;   // One or more digital signatures are invalid.

    // else if (result == VerifyResult.Success)
    return true;        // All signatures are valid.
}// end:ValidateSignatures()

' ------------------------ ValidateSignatures ------------------------
''' <summary>
''' Validates all the digital signatures of a given package.</summary>
''' <param name="package">
''' The package for validating digital signatures.</param>
''' <returns>
''' true if all digital signatures are valid; otherwise false if the
''' package is unsigned or any of the signatures are invalid.</returns>
Private Shared Function ValidateSignatures(ByVal package As Package) As Boolean
    If package Is Nothing Then
        Throw New ArgumentNullException("ValidateSignatures(package)")
    End If

    ' Create a PackageDigitalSignatureManager for the given Package.
    Dim dsm As New PackageDigitalSignatureManager(package)

    ' Check to see if the package contains any signatures.
    If Not dsm.IsSigned Then
        Return False
    End If
    ' The package is not signed.
    ' Verify that all signatures are valid.
    Dim result As VerifyResult = dsm.VerifySignatures(False)
    If result <> VerifyResult.Success Then
        Return False
    End If
    ' One or more digital signatures are invalid.
    ' else if (result == VerifyResult.Success)
    ' All signatures are valid.
    Return True
End Function
' end:ValidateSignatures()

Opmerkingen

Met deze methode worden alleen de digitale handtekeningen gecontroleerd; de gerelateerde X.509-certificaten worden niet geverifieerd. De VerifyCertificate methode kan worden gebruikt om de X.509-certificaten te verifiëren.

Van toepassing op

Zie ook