private bool IsValid(SecureLicense license)
{
byte[] hashBytes = Convert.FromBase64String(license.Key);
byte[] salt = new byte[license.RandomSaltLength];
Array.Copy(hashBytes, 0, salt, 0, license.RandomSaltLength);
byte[] hash = new Rfc2898DeriveBytes(license.Password, salt, license.Iterations).GetBytes(hashBytes.Length - salt.Length);
for (int i = 0; i < hash.Length; i++)
{
if (hashBytes[i + salt.Length] != hash[i])
{
return(false);
}
}
return(true);
}
public void GenerateLicense(string filePath)
{
var license = new SecureLicense(Key, Password, Iterations, RandomSaltLength);
string directory = Path.GetDirectoryName(filePath);
// If file name not specified, give a default file name
string fileName = (!string.IsNullOrEmpty(Path.GetFileName(filePath)) ? Path.GetFileName(filePath) : "license.lic");
// Create the directory if it does not exist
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
// Combine the directories, for a full write path
directory = Path.Combine(directory, fileName);
// Write our license file
WriteToBinaryFile(directory, license);
}