In this paper we present an improvement of the collision attack [1] on the authenticated encryption mode of operation OCB. [1] presents a detection of collision method and a way to use the collision, and it is possible to use the information from a collision to change some blocks of the message unnoticed, if they have a special property. We found a way to use the information from a collision to...

This study investigates factors contributing to the injury severity of truck-involved work zones crashes in South Carolina (SC). The outcome interest is or property damage only crashes, and explanatory examined include occupant, vehicle, collision, roadway, temporal, environmental characteristics. Two mixed (random parameter) logit models are developed, one for non-interstates with speed limits...

This paper presents a general method for planning collision-free wholebody walking motions for humanoid robots. First, we present a randomized algorithm for constrained motion planning, that is used to generate collision-free statically balanced paths solving manipulation tasks. Then, we show that dynamic walking makes humanoid robots small-space controllable. Such a property allows to easily t...

An important property of a hash function is the performance. We study fast iterated hash functions based on block ciphers. These hash functions and their compression functions are analyzed in the standard black-box model. We show an upper bound on rate of any collision resistant hash function. In addition, we improve known bound on the rate of collision resistant compression functions.

Rear-end collisions are caused by drivers misjudging urgent risks while following vehicles ahead in most cases. However, compared with other accident types, rear-end have higher preventability. This study aims to reveal the prone segments and hours of collisions. First, we extracted 1236 cases from traffic records Harbin 2015 2019. These accidents classified as property damage accidents, injury...

The safety of ships in regards to collisions and groundings, as well as the navigational and structural aspects of ships, has been improved and developed up to this day by technical, administrative and nautical parties. The damage resulting from collisions could be reduced through several techniques such as designing appropriate hull structures, ensuring tightness of cargo tanks as well as obse...

This memo presents a variant of the known tester of Bipartiteness in the bounded-degree graph model, which is presented in Section 9.4.1 of my book on Property Testing (hereafter referred to as the book). The purpose of this variation is to show that, when the graph is rapid mixing, Bipartiteness can be tested in O( √ k) time, rather than in Õ( √ k) time. Much of the following text is reproduce...