A universal decoding procedure is proposed for memoryless Gaussian channels with deterministic interfering signals from a certain class. The universality of the proposed decoder is in the sense of W i g independent of the channel parameters and the unknown interfering signal, and at the same time attaining the same random coding e m r exponent as the optimal maximum likelihood (ML) decoder, whi...

We show that seismic waiting time distributions in California and Iceland have many features in common as, for example, a power-law decay with exponent α ≈ 1.1 for intermediate and with exponent γ ≈ 0.6 for short waiting times. While the transition point between these two regimes scales proportionally with the size of the considered area, the full distribution is not universal and depends in a ...

The probability distribution for the free energy of directed polymers in random media (DPRM) with uncorrelated noise in d=1+1 dimensions satisfies the Tracy-Widom distribution. We inquire if and how this universal distribution is modified in the presence of spatially correlated noise. The width of the distribution scales as the DPRM length to an exponent β, in good (but not full) agreement with...

We deform conformal field theories with classical gravity duals by marginally relevant random disorder. We show that the disorder generates a flow to IR fixed points with a finite amount of disorder. The randomly disordered fixed points are characterized by a dynamical critical exponent z > 1 that we obtain both analytically (via resummed perturbation theory) and numerically (via a full simulat...

An important attack on multi-power RSA (N = pq) was introduced by Sarkar in 2014, by extending the small private exponent attack of Boneh and Durfee on classical RSA. In particular, he showed that N can be factored efficiently for r = 2 with private exponent d satisfying d < N. In this paper, we generalize this work by introducing a new partial key exposure attack for finding small roots of pol...

The relation between relaxation and diffusion is investigated in a Hamiltonian system of globally coupled rotators. Diffusion is anomalous if and only if the system is going towards equilibrium. The anomaly in diffusion is not anomalous diffusion taking a power-type function, but is a transient anomaly due to nonstationarity. For a certain type of initial condition, in quasistationary states, d...

Lyapunov exponents of chaotic attractors are hard to estimate, especially for non-smooth systems. One method to estimate the maximal Lyapunov exponent is by using its relationship with the synchronization properties of coupled systems. The maximal Lyapunov exponent is equal to the minimal proportional feedback gain necessary to achieve full state synchronization with a replica system. In this p...

We give three variants and improvements of Bleichenbacher’s low-exponent attack from CRYPTO 2006 on PKCS#1 v1.5 RSA signatures. For each of these three variants the fake signature representatives are accepted as valid by a flawed implementation. Our attacks work against much shorter keys as Bleichenbacher’s original attack, i.e. even for usual 1024 bit RSA keys. The first two variants can be us...

Indentation is a new method for estimating residual stress. The plastic behavior of the materials under study can affect indentation parameters and, thus, influences the results of residual stress measurement. In this paper, the effect of yield stress and work-hardening exponent on the accuracy of residual stress measurements in steels and aluminums was studied. Results showed that, for m...

In this paper, we analytically investigate Gallager’s exponent for space-time block codes over multiple-input multipleoutput block-fading channels with Gaussian input distribution. As a suitable metric of the fundamental tradeoff between communication reliability and information rate, Gallager’s exponent can be used to determine the required codeword length to achieve a prescribed error probabi...