A Strong Proxy Signature Scheme based on Partial Delegation

Proxy signature scheme is an extension of digital signature scheme first introduced by Mambo et al. in 1996, which allows a signer to delegate the signing capability to a designated person, called a proxy signer. There are three types of delegation, namely, full delegation, partial delegation, and delegation by warrant. In early proxy signature schemes, the identity of the proxy signer can be revealed by any trusted authority if needed. How- ever, a secured proxy signature scheme must satisfy various properties, such as, verifiability, strong un-forgeability, nonrepudiation, privacy, and strong identifiability. In this thesis, we propose a strong proxy signature scheme based on two computationally hard assumptions, namely, Discrete Logarithmic Problem (DLP) and Computational Die-Helmann (CDH) problem, which satisfies all the security properties of a standard proxy signature scheme. The property `strong' refers to the fact that only a designated person can only verify the authenticity of the proxy signature

Cabin Interior Walk-Around for Aircraft A320 In Immersive Virtual Reality

Before takeoff, pilots and aircraft crew members will walk around the aircraft, in and out, to inspect and ensure that the aircraft is safe for a hassle free flight, from takeoff to landing, no matter whether the aircraft is a commercial, private or other purpose aircraft. Like any other work, efficiency increases if a pilot or crew member gets training before starting his/her actual responsibility. However, it is not possible to provide training with the actual aircraft as access to an aircraft will increase the training cost. Also, there are a variety of aircraft and providing a hands-on training (experience) on every single type of aircraft would not be feasible in a real life scenario. This is where the “Immersive Virtual Reality” will help in overcoming these hurdles. Through VR it is possible to provide trainees with real life scenarios, VR based environment, at lower cost and provide them hands-on experience with all the available types of aircraft, which they might not have gotten otherwise