Unterstützung für XAdES Signatur

Aspose.Cells unterstützt das Signieren von Arbeitsmappen mit XAdES-Signatur. Hierfür bietet die API die Klasse DigitalSignature und die Enumeration XAdESType an.

Der folgende Code-Ausschnitt demonstriert die Verwendung der Klasse DigitalSignature, um die Arbeitsmappe Quelle zu signieren.

Beispielcode

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java
// directories
String sourceDir = Utils.Get_SourceDirectory();
String outputDir = Utils.Get_OutputDirectory();

Workbook workbook = new Workbook(sourceDir + "sourceFile.xlsx");
String password = "pfxPassword";
String pfx = "pfxFile";

// Load the certificate into an instance of InputStream
InputStream inStream = new FileInputStream(pfx);

// Create an instance of KeyStore with PKCS12 cryptography
java.security.KeyStore inputKeyStore = java.security.KeyStore.getInstance("PKCS12");

// Use the KeyStore.load method to load the certificate stream and its password
inputKeyStore.load(inStream, password.toCharArray());

DigitalSignature signature = new DigitalSignature(inputKeyStore, password, "testXAdES", com.aspose.cells.DateTime.getNow());

signature.setXAdESType(XAdESType.X_AD_ES);
DigitalSignatureCollection dsCollection = new DigitalSignatureCollection();
dsCollection.add(signature);

workbook.setDigitalSignature(dsCollection);

workbook.save(outputDir + "XAdESSignatureSupport_out.xlsx");