// Read the manifest file using (var manifestStream = manifestFile.Open()) // Verify the digital signature var certificate = new X509Certificate2(); certificate.Import(filePath, null, X509ContentType.Pfx);

// Check if the manifest file exists if (manifestFile == null) throw new InvalidDataException("Manifest file not found");

This tool opens a XAP archive, reads the manifest file, verifies the digital signature, and checks the assemblies for any suspicious activity. Note that this is a simplified example and a real-world implementation would require more comprehensive verification logic.

// Open the XAP archive using (var zipArchive = ZipFile.OpenRead(filePath)) // Get the manifest file var manifestFile = zipArchive.GetEntry("WMAppManifest.xml");

using System; using System.IO; using System.Security.Cryptography; using System.Security.Cryptography.X509Certificates;

The following is an example of a XAP archive verification tool:

// Verify the signature var signature = new SignatureDescription(); signature.KeyAlgorithm = certificate.PublicKey.KeyAlgorithm; signature.DigestAlgorithm = "SHA256";