We look at iterated power generators si = s e i−1 mod N for a random seed s0 ∈ ZN that in each iteration output a certain amount of bits. We show that heuristically an output of (1− 1 e ) logN most significant bits per iteration allows for efficient recovery of the whole sequence. This means in particular that the Blum-Blum-Shub generator should be used with an output of less than half of the b...

Single-polarization direct-detection transceivers may offer advantages compared to digital coherent technology for some metro, back-haul, access and inter-data center applications since they offer low-cost and complexity solutions. However, a direct-detection receiver introduces nonlinearity upon photo detection, since it is a square-law device, which results in signal distortion due to signal-...

This paper presents a synthesis of a robust control for an autonomous underwater vehicle (AUV) using two different methods. The problem statement requires the design of a position and attitude control system for the vehicle such that robust trajectory following is achieved. A detailed nonlinear model of the vehicle was derived, an operating point for nominal design was selected, and a multivari...

This paper presents the results of a controller synthesis where a robust control of an AUV is developed using two different methods. The problem statement requires the design of a position and attitude control system for the vehicle in order to achieve precise trajectory following. Firstly, a detailed nonlinear model of the vehicle was derived. Secondly an operating point for nominal design was...

Recent works have shown that quantum period-finding can be used to break many popular constructions (some block ciphers such as Even-Mansour, multiple MACs and AEs...) in the superposition query model. So far, all broken exhibited a strong algebraic structure, which enables craft periodic function of single input block. Recovering secret period allows recover key, distinguish, confidentiality o...

The paper presents an overview of linearization methods of the non-linear state equation. The linearization is developed from the point of view of the application in the theoretical electrotechnics. Some aspects of these considerations can be used in the control theory. In particular the main emphasis is laid on three methods of linearization, i.e.: Taylor’s series expansion, optimal linearizat...