private static string Decrypt(byte[] encryptedContent) { // Implement decryption logic here // For example, using Aes decryption using var aes = Aes.Create(); var iv = new byte[aes.BlockSize / 8]; Array.Copy(encryptedContent, iv, iv.Length); aes.IV = iv; aes.GenerateKey();
// Validate the license key var contentParts = decryptedContent.Split(':'); return contentParts[0] == licenseKey; } Hard Disk Sentinel Activation Key File
private static byte[] Encrypt(string plainText) { // Implement encryption logic here // For example, using Aes encryption using var aes = Aes.Create(); aes.GenerateKey(); aes.GenerateIV(); aes.IV = iv
public static bool ValidateActivationKeyFile(string filePath, string licenseKey) { // Read the activation key file var fileContent = File.ReadAllBytes(filePath); return contentParts[0] == licenseKey
// Save the encrypted content to a file var filePath = $"{userName}{ActivationKeyFileExtension}"; File.WriteAllBytes(filePath, encryptedContent);