Heisenberg Groups as Platform for the AAG key-exchange protocol

Garber, Kahrobaei, and Lam studied polycyclic groups generated by number field as platform for the AAG key-exchange protocol. In this paper, we discuss the use of a different kind of polycyclic groups, Heisenberg groups, as a platform group for AAG by submitting Heisenberg groups to one of AAG's major attacks, the length-based attack.Comment: arXiv admin note: text overlap with arXiv:1305.054

Exploring platform (semi)groups for non-commutative key-exchange protocols

In this work, my advisor Delaram Kahrobaei, our collaborator David Garber, and I explore polycyclic groups generated from number fields as platform for the AAG key-exchange protocol. This is done by implementing four different variations of the length-based attack, one of the major attacks for AAG, and submitting polycyclic groups to all four variations with a variety of tests. We note that this is the first time all four variations of the length-based attack are compared side by side. We conclude that high Hirsch length polycyclic groups generated from number fields are suitable for the AAG key-exchange protocol. Delaram Kahrobaei and I also carry out a similar strategy with the Heisenberg groups, testing them as platform for AAG with the length-based attack. We conclude that the Heisenberg groups, with the right parameters are resistant against the length-based attack. Another work in collaboration with Delaram Kahrobaei and Vladimir Shpilrain is to propose a new platform semigroup for the HKKS key-exchange protocol, that of matrices over a Galois field. We discuss the security of HKKS under this platform and advantages in computation cost. Our implementation of the HKKS key-exchange protocol with matrices over a Galois field yields fast run time

THE IMPACT OF CREATING SHARED VALUE ON PURCHASE INTENTION AND RECOMMENDATION INTENTION: A STUDY IN VIETNAM

Creating shared value (CSV) has been predicted as the next evolution of corporate social responsibility. Companies that follow the CSV approach integrate economic, societal, and environmental objectives in their strategy to pursue sustainability and competitive advantages. This study investigates the effects of CSV contributions (which are framed as economic, social, and environmental contributions) on brand attitude, and then the effects of brand attitude on consumer purchase and recommendation intentions. This research also examines the moderating role of perceived personal relevance on the relationships between economic, social, and environmental contributions and brand attitude. The proposed model was empirically tested on a sample of 234 consumers in a metropolitan city in Vietnam. The results confirm that positive links exist between the three CSV contributions and brand attitude as well as between brand attitude and consumer intentions of purchasing and recommending. The study also finds that perceived personal relevance moderates the effect of environmental contribution on brand attitude. These effects help us better understand previous findings in the literature regarding the influence of CSV on consumer intentions and enrich the limited CSV research. Moreover, this study also provides managerial suggestions for companies in making their CSV decisions

Local And Global Approaches To Treat The Torsional Barriers Of 4-methyl-acetophenone Using Microwave Spectroscopy

The Fourier transform microwave spectrum of 4-methylacetophenone recorded from 8 GHz to 18 GHz under jet-cooled conditions has revealed large tunneling splittings arising from a low barrier to internal rotation of the ring methyl group and small splittings from a high torsional barrier of the acetyl methyl group. The large splittings are especially challenging to model, while the small splittings are difficult to analyze due to the resolution limit of 120 kHz. The combination of two methyl groups undergoing internal rotations caused each rotational transition to split into five torsional species, which were resolved and fitted using a modified version of the \textit{XIAM} code and the newly developed \textit{ntop} code to a root-mean-square deviation close to measurement accuracy, providing an estimate of the \textit{V}$_{3}$ potential barriers of about 22 \wn ~and 584–588 \wn ~ for the ring and the acetyl methyl groups, respectively. The assignment was aided by separately fitting the five torsional species using odd-power order operators. Only one conformer in which all heavy atoms are located on a symmetry plane could be identified in the spectrum, in agreement with results from conformation analysis using quantum chemical calculations