Handshake

About: Handshake is a research topic. Over the lifetime, 1105 publications have been published within this topic receiving 15166 citations. The topic is also known as: 🤝.

TLShps: SDN-Based TLS Handshake Protocol Simplification for IoT.

Abstract: Transport Layer Security (TLS) is one of the most popular security protocols for end-to-end communications. The handshake process of TLS has high computation complexity and heavy delay, while the devices in Internet of Things (IoT) always have limited resources. Therefore, it is hard to deploy TLS in IoT. To tackle this problem, we propose a novel method to simplify the TLS handshake protocol based on Software Defined Network (SDN) for a general end-to-end communication scenario. Firstly, instead of doing the Diffie-Hellman key exchange to calculate the premaster secret of TLS, the controller is used to generate the premaster secret dynamically and then distributes this secret to the IoT devices through the encrypted channel between the SDN switch and the controller. Secondly, the certificate verification of TLS is transferred from the IoT devices to the more powerful controller. Furthermore, the security of our simplified protocol is validated by the deduction of BAN logic and the analysis for malicious attacks. The experimental results show that our protocol reduces both the latency in the whole handshake process and the computational overhead in the IoT devices compared with the traditional TLS.

Improvement of FPGA control via high speed but high latency interfaces

Abstract: In last years, the throughput of interfaces used in computer systems to control extension boards or external hardware has increased significantly. Unfortunately, those interfaces have also significant round-trip latency. This fact seriously impairs the efficiency of those control algorithms, which require a tight handshake. In such algorithms, the communication consists of a sequence of write and read operations, where read result (the handshake status) must be checked before the next write command is issued. This problem can be solved by the implementation of an intelligent controller in the controlled hardware. This controller should execute high-level commands locally performing all necessary handshake operations. Unfortunately, such a complex and highly specialized controller would consume a significant amount of FPGA resources. This paper presents an alternative approach which uses a highly simplified versatile controller implemented in FPGA. This simple controller may improve the efficiency of certain, relatively broad class of control algorithms. The proposed controller accepts a set of simple commands, which describe the write operations, read operations, and simple test operations. The control algorithm is described as a sequence of those operations. If the controlled hardware works correctly, all tests are passed, and the controller only notifies the host about successful completion. In case if certain handshake test fails, the host is notified about the position of the failed test and type of failure. That allows the controlling software to investigate and cure the problem. The controller may be also used in a standard mode, where status or result of each command is returned immediately and may be checked before the next command is issued. The paper also proposes a simple method for writing of software, which uses the new controller. This method allows to implement the control procedures that are very similar to those using traditional controllers. That minimizes the effort needed to use the new controller and reduces a risk of errors.

Teaching business systems to agree

Abstract: In Business-to-Business (B2B) commercial relationships, the exchange of messages relies heavily on standards. However, standards are in practice seldom sufficient. Nearly all bilateral commercial contracts need human negotiations, followed by expensive software integration to realize automated B2B message exchange. Accordingly, business systems integrations are nearly always to some extent hard coded. This prohibits widespread adoption of automated support of commercial B2B relations. To solve this problem, this paper proposes a handshake protocol to agree on the semantical aspects of the interface between the computers of independent organizations.

Development of hand-up response motion model in with and without voice greeting environment

Abstract: Greeting interaction with physical contacts, such as the handshake motions of robots has been discussed in previous papers. In these papers, researchers have discussed the robot's response to human's handshake request in with and without voice greeting environments. Based on a study result, during handshake greeting between human and robot, starting the voice greeting before the hand motion shows favorable feedback from humans [1]. On the other hand, greeting interaction without physical contact, such as the hand-up motions of robots has not been discussed. Therefore, in this paper, a hand-up response motion model was proposed for generation of hand-up greeting with human in with and without voice greeting environments. Initially, mutual hand-up greetings between human in with and without voice greeting environments are analyzed. Based on the differences in motion characteristics of humans during mutual hand-up greeting in both environments, a hand-up response motion model in which a robot responds to human's request for a hand-up greeting is proposed. Using the developed hand-up robot motion system, the effectiveness of the motion model is demonstrated through sensory evaluation experiments. Subsequently, the differences of the motion characteristics of the robot's response to hand-up greeting interactions in the case of hand-up greeting with voice greeting and without voice greeting preferred by humans are discussed.