دانلود رایگان مقاله به سمت تجارت امن سهمیه بندی دی اکسید کربن هوانوردی

abstract

The growth of world air traffic has been accompanied by a significant increase of its environmental impact, including CO2 emissions, which has forced the European Union to include aviation in its Emission Trading Scheme (EU ETS). The EU ETS is a market-based mechanism that obliges airlines to buy or sell carbon permits, thus forcing them to share confidential information with their competitors in an auctionbased market. Disclosure of confidential information will be one of the main barriers for the ETS adoption. In this contribution we describe the design and implementation of a Secure Multi-party Computation framework, capable of overcoming these barriers. The framework runs as an online, cloud-based computational service for performing CO2 trading securely without the need of sharing business information. Benefits and limitations of the proposed approach are discussed, as well as the challenges to be overcome towards an operational implementation.

7. Conclusions

In this contribution, we have presented an overview of the cryptographic field known as Secure Multi-Party Computation, and discussed how it can be applied to the problem of creating secure CO2 auctions in aviation. Towards this aim, a working prototype of a secure auction system has been designed and implemented, based on the SEPIA library (Many et al., 2012). The secure bidding mechanism is enabled by a set of SMC clients, running SMC algorithms that rank the individual bids in a collaborative way, while ensuring that the individual bids are not disclosed to any of the parties and that the individual bids cannot be tracked to each of the involved airlines. This solves the problem of data confidentiality, recognised as one of the major problems in the ETS mechanism: by participating in the market, airlines are required to disclose confidential information, as CO2 emissions are proportional to fuel consumption and thus to aircraft take-off weights.