EncryptedPackageEnvelope.CreateFromPackage Méthode

Définition

Espace de noms:: System.IO.Packaging

Assembly:: WindowsBase.dll

Important

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Crée et retourne un EncryptedPackageEnvelope package non chiffré existant comme source de son contenu.

Surcharges

Nom	Description
CreateFromPackage(Stream, Stream, PublishLicense, CryptoProvider)	Crée et retourne un EncryptedPackageEnvelope (sur le flux spécifié) qui utilise le package non chiffré spécifié comme contenu.
CreateFromPackage(String, Stream, PublishLicense, CryptoProvider)	Crée et retourne un EncryptedPackageEnvelope package non chiffré spécifié comme contenu et lui donne le nom de fichier spécifié.

Exemples

L’exemple suivant montre comment utiliser la CreateFromPackage méthode pour instancier un EncryptedPackageEnvelope.

WriteStatus("   Signing the UnsignedPublishLicense\n" +
            "       to build the PublishLicense.");
UseLicense authorsUseLicense;
PublishLicense publishLicense =
    unsignedLicense.Sign(_secureEnv, out authorsUseLicense);

WriteStatus("   Binding the author's UseLicense and");
WriteStatus("       obtaining the CryptoProvider.");
CryptoProvider cryptoProvider = authorsUseLicense.Bind(_secureEnv);

WriteStatus("   Creating the EncryptedPackage.");
Stream packageStream = File.OpenRead(packageFile);
EncryptedPackageEnvelope ePackage =
    EncryptedPackageEnvelope.CreateFromPackage(encryptedFile,
        packageStream, publishLicense, cryptoProvider);

WriteStatus("   Adding an author's UseLicense.");
RightsManagementInformation rmi =
    ePackage.RightsManagementInformation;
rmi.SaveUseLicense(author, authorsUseLicense);

ePackage.Close();
WriteStatus("   Done - Package encryption complete.");

WriteStatus("Verifying package encryption.");
if (EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(encryptedFile))
{
    WriteStatus("   Confirmed - '" + encryptedFilename +
                "' is encrypted.");
}
else
{
    MessageBox.Show("ERROR: '" + encryptedFilename +
        "' is NOT ENCRYPTED.", "Encryption Error",
        MessageBoxButton.OK, MessageBoxImage.Error);
    WriteStatus("ERROR: '" + encryptedFilename +
                "' is NOT ENCRYPTED.\n");
    return false;
}

WriteStatus("   Signing the UnsignedPublishLicense" & vbLf & "       to build the PublishLicense.")
Dim authorsUseLicense As UseLicense = Nothing
Dim publishLicense As PublishLicense = unsignedLicense.Sign(_secureEnv, authorsUseLicense)

WriteStatus("   Binding the author's UseLicense and")
WriteStatus("       obtaining the CryptoProvider.")
Dim cryptoProvider As CryptoProvider = authorsUseLicense.Bind(_secureEnv)

WriteStatus("   Creating the EncryptedPackage.")
Dim packageStream As Stream = File.OpenRead(packageFile)
Dim ePackage As EncryptedPackageEnvelope = EncryptedPackageEnvelope.CreateFromPackage(encryptedFile, packageStream, publishLicense, cryptoProvider)

WriteStatus("   Adding an author's UseLicense.")
Dim rmi As RightsManagementInformation = ePackage.RightsManagementInformation
rmi.SaveUseLicense(author, authorsUseLicense)

ePackage.Close()
WriteStatus("   Done - Package encryption complete.")

WriteStatus("Verifying package encryption.")
If EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(encryptedFile) Then
    WriteStatus("   Confirmed - '" & encryptedFilename & "' is encrypted.")
Else
    MessageBox.Show("ERROR: '" & encryptedFilename & "' is NOT ENCRYPTED.", "Encryption Error", MessageBoxButton.OK, MessageBoxImage.Error)
    WriteStatus("ERROR: '" & encryptedFilename & "' is NOT ENCRYPTED." & vbLf)
    Return False
End If

CreateFromPackage(Stream, Stream, PublishLicense, CryptoProvider)

Crée et retourne un EncryptedPackageEnvelope (sur le flux spécifié) qui utilise le package non chiffré spécifié comme contenu.

public:
 static System::IO::Packaging::EncryptedPackageEnvelope ^ CreateFromPackage(System::IO::Stream ^ envelopeStream, System::IO::Stream ^ packageStream, System::Security::RightsManagement::PublishLicense ^ publishLicense, System::Security::RightsManagement::CryptoProvider ^ cryptoProvider);

public static System.IO.Packaging.EncryptedPackageEnvelope CreateFromPackage(System.IO.Stream envelopeStream, System.IO.Stream packageStream, System.Security.RightsManagement.PublishLicense publishLicense, System.Security.RightsManagement.CryptoProvider cryptoProvider);

static member CreateFromPackage : System.IO.Stream * System.IO.Stream * System.Security.RightsManagement.PublishLicense * System.Security.RightsManagement.CryptoProvider -> System.IO.Packaging.EncryptedPackageEnvelope

Public Shared Function CreateFromPackage (envelopeStream As Stream, packageStream As Stream, publishLicense As PublishLicense, cryptoProvider As CryptoProvider) As EncryptedPackageEnvelope

Paramètres

envelopeStream: Stream

Flux sur lequel créer le fichier.

packageStream: Stream

Flux représentant le package non chiffré existant.

publishLicense: PublishLicense

Licence de publication incorporée dans le fichier composé.

cryptoProvider: CryptoProvider

Objet qui détermine les opérations que l’utilisateur actuel est autorisé à effectuer sur le contenu chiffré.

Retours

EncryptedPackageEnvelope

Nouvellement créé EncryptedPackageEnvelope.

Exceptions

ArgumentNullException

envelopeStream ou packageStream est null.

NotSupportedException

envelopeStream ne fournit pas d’accès en lecture/écriture.

Exemples

L’exemple suivant montre comment utiliser la CreateFromPackage méthode pour instancier un EncryptedPackageEnvelope.

WriteStatus("   Signing the UnsignedPublishLicense\n" +
            "       to build the PublishLicense.");
UseLicense authorsUseLicense;
PublishLicense publishLicense =
    unsignedLicense.Sign(_secureEnv, out authorsUseLicense);

WriteStatus("   Binding the author's UseLicense and");
WriteStatus("       obtaining the CryptoProvider.");
CryptoProvider cryptoProvider = authorsUseLicense.Bind(_secureEnv);

WriteStatus("   Creating the EncryptedPackage.");
Stream packageStream = File.OpenRead(packageFile);
EncryptedPackageEnvelope ePackage =
    EncryptedPackageEnvelope.CreateFromPackage(encryptedFile,
        packageStream, publishLicense, cryptoProvider);

WriteStatus("   Adding an author's UseLicense.");
RightsManagementInformation rmi =
    ePackage.RightsManagementInformation;
rmi.SaveUseLicense(author, authorsUseLicense);

ePackage.Close();
WriteStatus("   Done - Package encryption complete.");

WriteStatus("Verifying package encryption.");
if (EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(encryptedFile))
{
    WriteStatus("   Confirmed - '" + encryptedFilename +
                "' is encrypted.");
}
else
{
    MessageBox.Show("ERROR: '" + encryptedFilename +
        "' is NOT ENCRYPTED.", "Encryption Error",
        MessageBoxButton.OK, MessageBoxImage.Error);
    WriteStatus("ERROR: '" + encryptedFilename +
                "' is NOT ENCRYPTED.\n");
    return false;
}

WriteStatus("   Signing the UnsignedPublishLicense" & vbLf & "       to build the PublishLicense.")
Dim authorsUseLicense As UseLicense = Nothing
Dim publishLicense As PublishLicense = unsignedLicense.Sign(_secureEnv, authorsUseLicense)

WriteStatus("   Binding the author's UseLicense and")
WriteStatus("       obtaining the CryptoProvider.")
Dim cryptoProvider As CryptoProvider = authorsUseLicense.Bind(_secureEnv)

WriteStatus("   Creating the EncryptedPackage.")
Dim packageStream As Stream = File.OpenRead(packageFile)
Dim ePackage As EncryptedPackageEnvelope = EncryptedPackageEnvelope.CreateFromPackage(encryptedFile, packageStream, publishLicense, cryptoProvider)

WriteStatus("   Adding an author's UseLicense.")
Dim rmi As RightsManagementInformation = ePackage.RightsManagementInformation
rmi.SaveUseLicense(author, authorsUseLicense)

ePackage.Close()
WriteStatus("   Done - Package encryption complete.")

WriteStatus("Verifying package encryption.")
If EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(encryptedFile) Then
    WriteStatus("   Confirmed - '" & encryptedFilename & "' is encrypted.")
Else
    MessageBox.Show("ERROR: '" & encryptedFilename & "' is NOT ENCRYPTED.", "Encryption Error", MessageBoxButton.OK, MessageBoxImage.Error)
    WriteStatus("ERROR: '" & encryptedFilename & "' is NOT ENCRYPTED." & vbLf)
    Return False
End If

Remarques

L’utilisateur actuel dispose d’un accès en lecture/écriture au nouveau fichier.

Voir aussi

Create

S’applique à

CreateFromPackage(String, Stream, PublishLicense, CryptoProvider)

Crée et retourne un EncryptedPackageEnvelope package non chiffré spécifié comme contenu et lui donne le nom de fichier spécifié.

public:
 static System::IO::Packaging::EncryptedPackageEnvelope ^ CreateFromPackage(System::String ^ envelopeFileName, System::IO::Stream ^ packageStream, System::Security::RightsManagement::PublishLicense ^ publishLicense, System::Security::RightsManagement::CryptoProvider ^ cryptoProvider);

public static System.IO.Packaging.EncryptedPackageEnvelope CreateFromPackage(string envelopeFileName, System.IO.Stream packageStream, System.Security.RightsManagement.PublishLicense publishLicense, System.Security.RightsManagement.CryptoProvider cryptoProvider);

static member CreateFromPackage : string * System.IO.Stream * System.Security.RightsManagement.PublishLicense * System.Security.RightsManagement.CryptoProvider -> System.IO.Packaging.EncryptedPackageEnvelope

Public Shared Function CreateFromPackage (envelopeFileName As String, packageStream As Stream, publishLicense As PublishLicense, cryptoProvider As CryptoProvider) As EncryptedPackageEnvelope

Paramètres

envelopeFileName: String

Nom du fichier composé OLE.

packageStream: Stream

Flux représentant le package non chiffré existant.

publishLicense: PublishLicense

Licence de publication incorporée dans le fichier composé.

cryptoProvider: CryptoProvider

Objet qui détermine les opérations que l’utilisateur actuel est autorisé à effectuer sur le contenu chiffré.

Retours

EncryptedPackageEnvelope

Nouvellement créé EncryptedPackageEnvelope.

Exceptions

ArgumentNullException

envelopeFileName ou packageStream est null.

Exemples

L’exemple suivant montre comment utiliser la CreateFromPackage méthode pour instancier un EncryptedPackageEnvelope.

WriteStatus("   Signing the UnsignedPublishLicense\n" +
            "       to build the PublishLicense.");
UseLicense authorsUseLicense;
PublishLicense publishLicense =
    unsignedLicense.Sign(_secureEnv, out authorsUseLicense);

WriteStatus("   Binding the author's UseLicense and");
WriteStatus("       obtaining the CryptoProvider.");
CryptoProvider cryptoProvider = authorsUseLicense.Bind(_secureEnv);

WriteStatus("   Creating the EncryptedPackage.");
Stream packageStream = File.OpenRead(packageFile);
EncryptedPackageEnvelope ePackage =
    EncryptedPackageEnvelope.CreateFromPackage(encryptedFile,
        packageStream, publishLicense, cryptoProvider);

WriteStatus("   Adding an author's UseLicense.");
RightsManagementInformation rmi =
    ePackage.RightsManagementInformation;
rmi.SaveUseLicense(author, authorsUseLicense);

ePackage.Close();
WriteStatus("   Done - Package encryption complete.");

WriteStatus("Verifying package encryption.");
if (EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(encryptedFile))
{
    WriteStatus("   Confirmed - '" + encryptedFilename +
                "' is encrypted.");
}
else
{
    MessageBox.Show("ERROR: '" + encryptedFilename +
        "' is NOT ENCRYPTED.", "Encryption Error",
        MessageBoxButton.OK, MessageBoxImage.Error);
    WriteStatus("ERROR: '" + encryptedFilename +
                "' is NOT ENCRYPTED.\n");
    return false;
}

WriteStatus("   Signing the UnsignedPublishLicense" & vbLf & "       to build the PublishLicense.")
Dim authorsUseLicense As UseLicense = Nothing
Dim publishLicense As PublishLicense = unsignedLicense.Sign(_secureEnv, authorsUseLicense)

WriteStatus("   Binding the author's UseLicense and")
WriteStatus("       obtaining the CryptoProvider.")
Dim cryptoProvider As CryptoProvider = authorsUseLicense.Bind(_secureEnv)

WriteStatus("   Creating the EncryptedPackage.")
Dim packageStream As Stream = File.OpenRead(packageFile)
Dim ePackage As EncryptedPackageEnvelope = EncryptedPackageEnvelope.CreateFromPackage(encryptedFile, packageStream, publishLicense, cryptoProvider)

WriteStatus("   Adding an author's UseLicense.")
Dim rmi As RightsManagementInformation = ePackage.RightsManagementInformation
rmi.SaveUseLicense(author, authorsUseLicense)

ePackage.Close()
WriteStatus("   Done - Package encryption complete.")

WriteStatus("Verifying package encryption.")
If EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(encryptedFile) Then
    WriteStatus("   Confirmed - '" & encryptedFilename & "' is encrypted.")
Else
    MessageBox.Show("ERROR: '" & encryptedFilename & "' is NOT ENCRYPTED.", "Encryption Error", MessageBoxButton.OK, MessageBoxImage.Error)
    WriteStatus("ERROR: '" & encryptedFilename & "' is NOT ENCRYPTED." & vbLf)
    Return False
End If

Remarques

Si un fichier portant le nom spécifié existe déjà, il est remplacé.

L’utilisateur actuel dispose d’un accès en lecture/écriture au fichier.

Voir aussi

Create

S’applique à

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