System.Security.Cryptography.RSA.ToXmlString C# (CSharp) Method

        public override string ToXmlString(bool includePrivateParameters)
        {
            throw new PlatformNotSupportedException();
        }

 public Product()
 {
     _key = RSA.Create();
     _id = Guid.NewGuid();
     _issuedLicenses = new ObservableCollection<License>();
     _publicKey = _key.ToXmlString(false);
     _privateKey = _key.ToXmlString(true);
 }