using System; using System.IO; using System.Security.Cryptography; using System.Xml;
Offline License Verification
Allow users to download and install a license file for Easy Worship 7, enabling offline access to the software. Easyworship 7 Offline License File Download
// Sign the XML document with a digital signature SignedXml signedXml = new SignedXml(); signedXml.SigningKey = new RSACryptoServiceProvider(); signedXml.ComputeSignature(licenseDoc); using System; using System
// Verify the digital signature SignedXml signedXml = new SignedXml(); signedXml.CheckSignature(licenseDoc); signedXml.SigningKey = new RSACryptoServiceProvider()
// 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));