// Verify the digital signature SignedXml signedXml = new SignedXml(); signedXml.CheckSignature(licenseDoc);
Allow users to download and install a license file for Easy Worship 7, enabling offline access to the software.
// Generate a license file public void GenerateLicenseFile(string userDetails, string softwareVersion, string licenseType) { // Create an XML document XmlDocument licenseDoc = new XmlDocument(); licenseDoc.CreateElement("license"); Easyworship 7 Offline License File Download
// Check the license file contents string userDetails = licenseDoc.GetElementsByTagName("userDetails")[0].InnerText; string softwareVersion = licenseDoc.GetElementsByTagName("softwareVersion")[0].InnerText; string licenseType = licenseDoc.GetElementsByTagName("licenseType")[0].InnerText;
Offline License Verification
// Add relevant information to the XML document XmlElement root = licenseDoc.DocumentElement; root.AppendChild(CreateElement("userDetails", userDetails)); root.AppendChild(CreateElement("softwareVersion", softwareVersion)); root.AppendChild(CreateElement("licenseType", licenseType));
// Sign the XML document with a digital signature SignedXml signedXml = new SignedXml(); signedXml.SigningKey = new RSACryptoServiceProvider(); signedXml.ComputeSignature(licenseDoc); // Verify the digital signature SignedXml signedXml =
// Verify the license file public bool VerifyLicenseFile(string licenseFilePath) { try { // Load the license file XmlDocument licenseDoc = new XmlDocument(); licenseDoc.Load(licenseFilePath);