Support for XAdES Signature
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Introduction
Aspose.Cells provides supports signing workbooks with XAdES Signature. For this, the API provides DigitalSignature class and XAdESType enumeration.
How to Add XAdES Signature for Excel
The following code snippet demonstrates the use of the DigitalSignature class to sign the source workbook.
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// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET | |
//Source directory | |
string sourceDir = RunExamples.Get_SourceDirectory(); | |
//Output directory | |
string outputDir = RunExamples.Get_OutputDirectory(); | |
Workbook workbook = new Workbook(sourceDir + "sourceFile.xlsx"); | |
string password = "pfxPassword"; | |
string pfx = "pfxFile"; | |
DigitalSignature signature = new DigitalSignature(File.ReadAllBytes(pfx), password, "testXAdES", DateTime.Now); | |
signature.XAdESType = XAdESType.XAdES; | |
DigitalSignatureCollection dsCollection = new DigitalSignatureCollection(); | |
dsCollection.Add(signature); | |
workbook.SetDigitalSignature(dsCollection); | |
workbook.Save(outputDir + "XAdESSignatureSupport_out.xlsx"); |