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Secure protocol transformation via "expansion"

Alain Mayer, Moti Yung
1999 Proceedings of the 6th ACM conference on Computer and communications security - CCS '99  
Rather than designing each group oriented task from scratch, we move in this work towards a more methodological approach, which derives a design of group (multicast) protocols from two-party ones.  ...  It enables us to achmve efficmnt and secure protocols for a large variety of group tasks.  ...  Construct some basic provably secure "protocol expansions" general enough to cover both the symmetric key and asymmetric key cases: 0) transform a two-party auth/key-transport n flow protocol into a two-party  ... 
doi:10.1145/319709.319721 dblp:conf/ccs/MayerY99 fatcat:jc5ehqjbkzb4vpppv2olrq6pxq

The Debate on NATO Expansion

Eunika Katarzyna Frydrych
2008 Connections The Quarterly Journal  
Moscow is not opposed to NATO's expansion to the Western Balkans. But expansion to its two neighbors, Georgia and Ukraine, represents a different matter entirely.  ...  External, to ensure safety from common enemies by gathering a group of states together in a way that enables them to combine their potential and strength 2.  ... 
doi:10.11610/connections.07.4.01 fatcat:zuxl66kbdre6zpymkpinhk2aae

A framework for quantum-secure device-independent randomness expansion [article]

Peter J. Brown, Sammy Ragy, Roger Colbeck
2019 arXiv   pre-print
Here we show how to derive randomness expansion rates for a wide range of protocols, with security against a quantum adversary.  ...  A device-independent randomness expansion protocol aims to take an initial random seed and generate a longer one without relying on details of how the devices operate for security.  ...  Acknowledgments We are grateful for support from the EPSRC's Quantum Communications Hub (grant number EP/M013472/1), an EPSRC First Grant (grant number EP/P016588/1) and the WW Smith fund.  ... 
arXiv:1810.13346v2 fatcat:pb24iea7mzavvoprvbnlmin6de

Experimental realization of device-independent quantum randomness expansion [article]

Ming-Han Li, Xingjian Zhang, Wen-Zhao Liu, Si-Ran Zhao, Bing Bai, Yang Liu, Qi Zhao, Yuxiang Peng, Jun Zhang, Yanbao Zhang, William J. Munro, Xiongfeng Ma, Qiang Zhang (+2 others)
2019 arXiv   pre-print
Device-independent quantum randomness expansion provides a randomness resource of the highest security level.  ...  Randomness expansion where one generates a longer sequence of random numbers from a short one is viable in quantum mechanics but not allowed classically.  ...  ACKNOWLEDGMENTS The authors would like to thank X. Yuan for enlightening discussions.  ... 
arXiv:1902.07529v2 fatcat:liwhkgs47neyrmw5kb5o5cdavy

Expansive networks: Exploiting spectrum sharing for capacity boost and 6G vision

Gurkan Gur
2020 Journal of Communications and Networks  
We also discuss two key enablers, namely distributed ledger technology (DLT) and network intelligence via machine learning, which are promising to realize expansive networks for the spectrum sharing aspect  ...  We then present security implications of expansive networks, an important concern due to more open and coupled systems in expansive networks.  ...  This approach requires appropriate protocol(s) to be implemented for each cell and security mechanisms to protect any central control point.  ... 
doi:10.23919/jcn.2020.000037 fatcat:3g2ya75vdrdijduseiklrgx7aq

Leveraging Broadband Access Expansion for PSTN Migration: A Case Study for Converged Fixed Access

Jean-Philippe Joseph, William J. Barnett
2012 Bell Labs technical journal  
Service providers (SPs) across the globe are initiating programs to transform their existing networks into all-Internet Protocol (IP) networks.  ...  In addition, it presents a case study of a fixed operator synergistically leveraging its broadband access expansion program for PSTN voice migration, in order to minimize its overall transformation costs  ...  Acknowledgements The authors would like to thank several colleagues for sharing their insights and providing comments on many aspects of this paper.  ... 
doi:10.1002/bltj.21528 fatcat:qcnjufpgqfhrrmbcrhran5qq5y

Cyber-Warfare Threatens Corporations: Expansion into Commercial Environments

Kenneth J. Knapp, William R. Boulton
2006 Information systems management  
These trends demonstrate the transformation of information warfare from primarily a military issue into a major commercial issue as well.  ...  On the basis of a review of information warfare literature from 1990 to mid-2005, this article presents a framework of 12 important trends.  ...  I agrees to or can be from third parties with illegal intentions (Stafford and Urbaczewski, 2004 ).  ... 
doi:10.1201/1078.10580530/45925.23.2.20060301/92675.8 fatcat:5j64gy4jivfuxgfssq7hsbicwq

Conflict and complicity : The expansion of the Karelian Gulag, 1923-1933

2001 Cahiers du monde russe  
. 57. 57 For a general description of party and security measures to mobilise the rural workforce to felling, see F.  ...  from party intervention).  ... 
doi:10.4000/monderusse.8471 fatcat:ll562gsherfihm6hcyjyaqmdrm

The Emergence and Expansion of the Permanent Diplomacy

Gökhan ERDEM
2010 Milletleraras  
From the 16 th century onwards, imperial France advanced both the institutional and methodological practice of permanent, professional diplomacy.  ...  Later, during the 19 th century, permanent diplomatic practice became central to international relations, and still continues to be of vital service to the conduct of world affairs.  ...  to be accepted unavoidably as a methodology to secure their aims.  ... 
doi:10.1501/intrel_0000000267 fatcat:gnqyki6lojfa7djnhx7maeypim

Biomimetic post-capillary venule expansions for leukocyte adhesion studies

Bryan L. Benson, Lucy Li, Jay T. Myers, R. Dixon Dorand, Umut A. Gurkan, Alex Y. Huang, Richard M. Ransohoff
2018 Scientific Reports  
Leukocyte adhesion and extravasation are maximal near the transition from capillary to post-capillary venule, and are strongly influenced by a confluence of scale-dependent physical effects.  ...  channels of physiological scale, efficient leukocyte adhesion requires erythrocytes forcing leukocytes against the wall, a phenomenon that is promoted by the transitional flow in postcapillary venule expansions  ...  We finally thank the Huang and Ransohoff lab groups for useful academic input, and especially Alexander Tong, who suggested that expansions might play a role in promoting adhesion.  ... 
doi:10.1038/s41598-018-27566-z pmid:29921896 pmcid:PMC6008471 fatcat:lz4t7oet7zckdflop3iope64be

Intermolecular [3+3] ring expansion of aziridines to dehydropiperi-dines through the intermediacy of aziridinium ylides

Josephine Eshon, Kate A. Nicastri, Steven C. Schmid, William T. Raskopf, Ilia A. Guzei, Israel Fernández, Jennifer M. Schomaker
2020 Nature Communications  
Here, we report a [3 + 3] ring expansion of bicyclic aziridines and rhodium-bound vinyl carbenes to form complex dehydropiperidines in a highly stereocontrolled rearrangement.  ...  The mild reaction conditions, functional group tolerance, and high stereospecificity of this method are well-suited for appending piperidine motifs to natural product and complex molecules.  ...  The Q-Exactive mass spectrometer was acquired from an NIH-S10 award (NIH-1S10OD020022-1).  ... 
doi:10.1038/s41467-020-15134-x pmid:32152321 fatcat:twbqxgur75h43piqgxdgeevq5m

Environmental Conflicts Related to Urban Expansion Involving Agrarian Communities in Central Mexico

Victoria Ruiz Rincón, Joan Martínez-Alier, Sara Mingorria
2019 Sustainability  
Meanwhile, the expansion of urban space through demographic agglomeration and the concentration of activities in cities is leading to a progressively urbanised world.  ...  This article sheds light on the particularities of the relationship between urban expansion and the assault on agrarian modes of existence that survive at the diffuse urban frontiers in Central Mexico.  ...  Acknowledgments: The authors thank local and international activists and scholars who collaborate directly or indirectly to the EJAtlas database.  ... 
doi:10.3390/su11236545 fatcat:fx7benfx75fahfafw4hqt2fr3q

The Temptation of Executive Authority: How Increased Polarization and the Decline in Legislative Capacity Have Contributed to the Expansion of Presidential Power

Edward G. Carmines, Matthew Fowler
2017 Indiana Journal of Global Legal Studies  
policy gridlock resulting in the expansion of executive power (and judicial authority) relative to legislative authority.  ...  This paper argues that our increasingly polarized politics has led to political stalemate and policy gridlock in Congress which, in turn, have contributed to a change in the balance of power between the  ...  level and divided party government-two conditions that have characterized recent American politics-contributes to legislative gridlock and policy stalemate.'  ... 
doi:10.2979/indjglolegstu.24.2.0369 fatcat:koshquhkkfhqnostqv3do3ly4y

Defining Participatory Worlds - Canonical Expansion of Fictional Worlds through Audience Participation

José Sánchez Blázquez
2019 Zenodo  
meaningfully and canonically to their development and expansion.  ...  These franchised worlds commonly become transmedia giants through commissioning works to professionals and subsidiary and/or external companies and by issuing brand licenses to third party organisations  ...  Participation, on the other hand, is shaped by the cultural and social protocols […].  ... 
doi:10.5281/zenodo.3505678 fatcat:h4ojlx2i6nesde2shhy2wfy56e

Writing Law at the Edge of Empire: Evidence from the Qazis of Bharuch (1799–1864)

Elizabeth Lhost
2018 Itinerario: International Journal on the History of European Expansion and Global Interaction  
In petitions sent to the Governor in Council from the edges of empire, these legal intermediaries objected to the Company's interference with their livelihoods.  ...  , qāẓīs (Islamic judges) like Sayyid Aḥmad Ḥusain of Bharuch, objected to their loss of authority.  ...  the two parties is one of marital debt and obligation.  ... 
doi:10.1017/s0165115318000347 fatcat:cqkw35lf2vbufjpl5jeqy4rndy
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