SignedLicense IBuilder_Properties.SignAndCreate()
{
var license = new SignedLicense(myHardwareIdentifier, mySerialNumber, DateTime.Now, myExpirationDate, myProperties);
license.Sign(mySigner);
return(license);
}
SignedLicense IVerifier_VerifyLoad.LoadAndVerify(string licenseString)
{
var license = SignedLicense.Deserialize(licenseString);
// verify signature
license.Verify(mySigner);
// verify application code
if (!SerialNumber.IsApplicationCodeValid(license.SerialNumber, myApplicationCode))
{
throw new SignedLicenseException($"Application Code '{myApplicationCode}' is not valid for the license.");
}
// verify hardware identifier
if (!HardwareIdentifier.IsValidForCurrentComputer(license.HardwareIdentifier))
{
throw new SignedLicenseException($"License has been activated for another computer.");
}
// verify expiration date
if (license.ExpirationDate < DateTime.UtcNow)
{
throw new SignedLicenseException($"License has been expired since '{license.ExpirationDate}'.");
}
return(license);
}
