Financial Cryptography and Data Security
FC 2010 Workshops, RLCPS, WECSR, and WLC 2010, Tenerife, Canary Islands, Spain, January 25-28, 2010, Revised Selected Papers
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Article
Repairing an aggregation-based smart metering system
Smart meters inform the electricity suppliers about the consumption of their clients in short intervals. Fine-grained electricity consumption information is highly sensitive as it has been proven to permit to ...
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Article
On the 2-adic valuation of the cardinality of elliptic curves over finite extensions of \(\mathbb {F}_{\varvec{q}} \)
In this paper we study the difference between the 2-adic valuations of the cardinalities \( \# E( \mathbb {F}_{q^k} ) \) ...
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Article
Foreword
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Article
Pairing-Based Cryptography on Elliptic Curves
We give a brief overview of a recent branch of Public Key Cryptography, the so called Pairing-based Cryptography or Identity-based Cryptography. We describe the Weil pairing and its applications to cryptosyste...
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Article
A hybrid approach to vector-based homomorphic tallying remote voting
Vector-based homomorphic tallying remote voting schemes provide an efficient protocol for vote tallying, but they require voters to prove in zero-knowledge that the ballots they cast have been properly generat...
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Article
On the \({\ell}\) -adic valuation of the cardinality of elliptic curves over finite extensions of \({\mathbb{F}_{q}}\)
Let E be an elliptic curve defined over a finite field \({\mathbb{F}_{q}}\) ...
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Article
On the Nonexistence of Almost Moore Digraphs of Degree Four and Five
An almost Moore (d, k)-digraph is a regular digraph of degree \({d > 1}\) ...
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Chapter and Conference Paper
Isogeny Volcanoes of Elliptic Curves and Sylow Subgroups
Given an ordinary elliptic curve over a finite field located in the floor of its volcano of \( \ell \) -isogenies, we ...
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Chapter and Conference Paper
An Efficient Homomorphic E-Voting System over Elliptic Curves
The homomorphic tallying paradigm provides efficient e-voting solutions when implemented using the multiplicative homomorphic property of the ElGamal cryptosystem. However, that is not the case when implemente...
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Article
Cryptanalysis of an ad-hoc cryptosystem for mix-based e-voting robust against relation attacks
In this paper, an ad-hoc public-key cryptosystem recently proposed to implement a general countermeasure to relation attacks in mix-based e-voting is shown to be weak in the sense that the secret key is easily...
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Chapter and Conference Paper
Verifiable Encrypted Redundancy for Mix-Type Remote Electronic Voting
In this paper we present a mix-type remote electronic voting system belonging to the “proof of product with redundancy” paradigm. Votes are composed using a redundancy system that permits to prove the correct ...
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Book and Conference Proceedings
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Chapter and Conference Paper
WLC Preface
Low-cost devices are the key component of several applications: RFID tags permit an automated supply chain management while smart cards are a secure means of storing cryptographic keys required for remote and ...
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Article
A Secure Elliptic Curve-Based RFID Protocol
Nowadays, the use of Radio Frequency Identification (RFID) systems in industry and stores has increased. Nevertheless, some of these systems present privacy problems that may discourage potential users. Hence,...
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Article
The picard group of the variety of plane cuspidal cubics of ℙ3
We give a compactification of the varietyU of non-degenerate plane cuspidal cubics of ℙ3. We construct this compactification by means of the projective bundleX of a suitable vector bundleE. We describe the inters...
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Article
On the variety of rational curves inP n
In this note one defines a stratification of the variety of rational curves inP n of given degree in terms of the decomposition of the normal bundle (see [E-vdV], [G-S] for the casen=3). The strat...
