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An Optimistic NBAC-Based Fair Exchange Method for Arbitrary Items [chapter]

Masayuki Terada, Kensaku Mori, Sadayuki Hongo
2006 Lecture Notes in Computer Science  
This paper proposes a novel fair exchange method that enables parties to fairly exchange arbitrary items in an optimistic manner.  ...  This is achieved by realizing an optimistic non-blocking atomic commitment (NBAC) protocol between two smartcards and adapting the known result that fair exchange can be reduced to NBAC among trusted processes  ...  This paper proposes a novel optimistic fair exchange method that fairly exchanges arbitrary items in an optimistic manner with no restriction on items being exchanged.  ... 
doi:10.1007/11733447_8 fatcat:vwtxzu6kmbbtbp6fmbwbdbpn5u

Modeling Agreement Problems in the Universal Composability Framework [chapter]

Masayuki Terada, Kazuki Yoneyama, Sadayuki Hongo, Kazuo Ohta
2007 Lecture Notes in Computer Science  
exchange protocols.  ...  Our construction of NBAC functionality (namely FNBAC) is exactly equivalent to the NBAC definition; it is formally proved that a protocol UC-securely realizes FNBAC if and only if the protocol is an NBAC  ...  When using the optimistic NBAC protocol [8] as the NBAC part of this algorithm, this exchange realizes optimistic (strong) fair exchange of arbitrary items while other known optimistic protocols can  ... 
doi:10.1007/978-3-540-77048-0_27 fatcat:bxdeudlyizd2dedtr5bg2nafhe

The Complexity of Reliable and Secure Distributed Transactions

Jingjing Wang
2018
Optimistic fair exchange For two parties, Asokan et al. [48] proposed a 4-message optimistic fair exchange scheme that ensures termination.  ...  Both works focus on synchronous NBAC, while our study is for an arbitrary (asynchronous) system as well as an arbitrary combination of properties of NBAC.  ... 
doi:10.5075/epfl-thesis-8761 fatcat:ppjlxekv3bcg7kfjvo6kyv2nfm

EXPERT PANEL ON THE FUTURE OF FOOD BIOTECHNOLOGY

2001 Journal of Toxicology and Environmental Health, Part A  
It examines in detail the safety implications of these applications for human and animal health and the natural environment.  ...  We would like to thank all the members of the Panel for the energy and time they devoted to the completion of this report in such a collaborative spirit. This is a large and complex topic.  ...  The Precautionary Principle marginalizes the role of scientists and can be applied in an arbitrary fashion (Chapman et al., 1998; Mahoney, 2000) .  ... 
doi:10.1080/15287390152539433 fatcat:uxysstwqvralbcsqz4oqv3l5uy

The outdoor living supplement: outdoor recreation in post-war Sydney 1945-1975

Richard Strauss
2022
Outdoor recreation was the focus of intense commodification as the long post-war boom progressed, being an important element in the development of Australian consumerism.  ...  Post-war concerns with social justice brought an emphasis on planning that fell short of the more utopian goals, but revived economic activity and redefined social relations, leading to a shift in political  ...  Concerning the Planning Scheme for the County of Cumberland, the Liberals were at first cautiously optimistic.  ... 
doi:10.25949/19441511.v1 fatcat:dfmntgfejvbixcwxwhcealeh7a