Prise en charge de la signature XAdES

Aspose.Cells prend en charge la signature de classeurs avec XAdES Signature. Pour cela, le API fournitSignature numériqueclasse etXAdESTypeénumération.

L’extrait de code suivant illustre l’utilisation deSignature numériqueclasse pour signerla sourceclasseur.

Exemple de code

// 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");