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CertificateEmbeddingOption 列舉

  • 參考

定義

命名空間:
System.IO.Packaging
組件:
WindowsBase.dll

指定用於簽署之 X.509 憑證的儲存位置。

public enum class CertificateEmbeddingOption
public enum CertificateEmbeddingOption
type CertificateEmbeddingOption = 
Public Enum CertificateEmbeddingOption
繼承
Object
ValueType
Enum
CertificateEmbeddingOption

欄位

名稱 值 Description
InCertificatePart 0

憑證內嵌於本身的 PackagePart。
InSignaturePart 1

憑證內嵌於針對要加入之簽章所建立的 SignaturePart。
NotEmbedded 2

憑證並未內嵌於封裝中。

範例

下列範例示範如何使用 CertificateEmbeddingOption 來設定 PackageDigitalSignatureManager.CertificateOption 屬性。

private static void SignAllParts(Package package)
{
    if (package == null)
        throw new ArgumentNullException("SignAllParts(package)");

    // Create the DigitalSignature Manager
    PackageDigitalSignatureManager dsm =
        new PackageDigitalSignatureManager(package);
    dsm.CertificateOption =
        CertificateEmbeddingOption.InSignaturePart;

    // Create a list of all the part URIs in the package to sign
    // (GetParts() also includes PackageRelationship parts).
    System.Collections.Generic.List<Uri> toSign =
        new System.Collections.Generic.List<Uri>();
    foreach (PackagePart packagePart in package.GetParts())
    {
        // Add all package parts to the list for signing.
        toSign.Add(packagePart.Uri);
    }

    // Add the URI for SignatureOrigin PackageRelationship part.
    // The SignatureOrigin relationship is created when Sign() is called.
    // Signing the SignatureOrigin relationship disables counter-signatures.
    toSign.Add(PackUriHelper.GetRelationshipPartUri(dsm.SignatureOrigin));

    // Also sign the SignatureOrigin part.
    toSign.Add(dsm.SignatureOrigin);

    // Add the package relationship to the signature origin to be signed.
    toSign.Add(PackUriHelper.GetRelationshipPartUri(new Uri("/", UriKind.RelativeOrAbsolute)));

    // Sign() will prompt the user to select a Certificate to sign with.
    try
    {
        dsm.Sign(toSign);
    }

    // If there are no certificates or the SmartCard manager is
    // not running, catch the exception and show an error message.
    catch (CryptographicException ex)
    {
        MessageBox.Show(
            "Cannot Sign\n" + ex.Message,
            "No Digital Certificates Available",
            MessageBoxButton.OK,
            MessageBoxImage.Exclamation);
    }
}// end:SignAllParts()

Private Shared Sub SignAllParts(ByVal package As Package)
    If package Is Nothing Then
        Throw New ArgumentNullException("SignAllParts(package)")
    End If

    ' Create the DigitalSignature Manager
    Dim dsm As New PackageDigitalSignatureManager(package)
    dsm.CertificateOption = CertificateEmbeddingOption.InSignaturePart

    ' Create a list of all the part URIs in the package to sign
    ' (GetParts() also includes PackageRelationship parts).
    Dim toSign As New System.Collections.Generic.List(Of Uri)()
    For Each packagePart As PackagePart In package.GetParts()
        ' Add all package parts to the list for signing.
        toSign.Add(packagePart.Uri)
    Next

    ' Add the URI for SignatureOrigin PackageRelationship part.
    ' The SignatureOrigin relationship is created when Sign() is called.
    ' Signing the SignatureOrigin relationship disables counter-signatures.
    toSign.Add(PackUriHelper.GetRelationshipPartUri(dsm.SignatureOrigin))

    ' Also sign the SignatureOrigin part.
    toSign.Add(dsm.SignatureOrigin)

    ' Add the package relationship to the signature origin to be signed.
    toSign.Add(PackUriHelper.GetRelationshipPartUri(New Uri("/", UriKind.RelativeOrAbsolute)))

    ' Sign() will prompt the user to select a Certificate to sign with.
    Try
        dsm.Sign(toSign)
    Catch ex As CryptographicException

        ' If there are no certificates or the SmartCard manager is
        ' not running, catch the exception and show an error message.
        MessageBox.Show("Cannot Sign" & vbLf & ex.Message, "No Digital Certificates Available", MessageBoxButton.OK, MessageBoxImage.Exclamation)

    End Try
End Sub
Private Shared Function InlineAssignHelper(Of T)(ByRef target As T, ByVal value As T) As T
    target = value
    Return value
End Function
' end:SignAllParts()

備註

如果憑證位於 NotEmbedded 封裝中，驗證簽章的應用程式必須提供憑證的複本，才能驗證其簽署的簽章。

InSignaturePart 會將兩個參考專案 <KeyName> 和 <KeyValue>新增為預存數位簽名字段的一部分 KeyInfo 。 <KeyName>和 <KeyValue> 元素不會當做簽章驗證的一部分進行處理，因此不會受到修改的安全。 應用程式不應該對這兩個元素的有效性進行任何假設。 為了避免未偵測到的修改和可能的混淆，應用程式應該使用 InCertificatePart 選項，而不是 InSignaturePart。 選項 InCertificatePart 不提供或公開 <KeyName> 或 <KeyValue>。

適用於

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