Argela Yazilim Ve Bilisim Teknolojileri San Ve Tic A.s.

Metin Balci

Seyhan Civanlar

Burak Gorkemli

Bulent Kaytaz

Erhan Lokman

Sinan Tatlicioglu

Aydin Ulas

A novel system and a new data communication method are invented in a software-defined (SDN) network to provide delivery of certain types of critical data flows with certain QoS and/or extra security requirements in a congested network. The method of invention allows such critical data not to traverse the data plane, as it normally would, but instead to go from the ingress switch directly to the egress switch, thereby always in two hops using the control channels. By shortcutting all other switches along the traditional data path computed by normal routing, it potentially provides guaranteed throughput, lower latency/jitter or higher level of security.

System, method and article of manufacture for using control plane for critical data communications in software-defined networks

Sensitive data is sent through insecure network regions across different software defined networks (SDNs) over an encrypted path without requiring encryption applications at the source or destination hosts. One or more special-purpose encryptors are strategically placed within each SDN, which can act as an encryptor or decryptor, of both the data packet content and the header. Using the controller and a special encryption service application, the encrypted IP packets are forwarded from an encryptor, closest to the source, towards a decryptor, closest to the destination, utilizing a tagging method. Each encryptor has a static and globally unique tag. Each controller advertises to other controllers its encryptor information: IP of the encryptor, the IP block of the users the encryptor is responsible for and the unique encryptor tag(s). Each forwarder along the flow path is instructed by its respective controller how to forward packets towards the destination according to the tag.

System and method for programmable network based encryption in software defined networks

A system and method that rely on a centralized and trusted control mechanism for a software-defined network (SDN) to dynamically assign routes between two end points, and to simultaneously change their real IP addresses to fake IP addresses to establish short-lived obfuscated communications paths with a goal of preserving anonymity. The SDN controller determines the short-lived routes from a feasible route-set and new fake IP addresses from a reserved address pool for the source and destination hosts. It provisions only the switches along the route with rules so that a switch can forward packets of the data flow to another switch without needing to know the actual IP addresses of the communicating endpoints, and hence, providing strict anonymity even when the switches are compromised.

Growing community of inventors

Istanbul, Turkey

Metin Balci