Ara es mostren els items 1-20 de 24

    • A construction of traceability set systems with polynomial tracing algorithm 

      Egorova, Elena; Fernández Muñoz, Marcel; Kabatiansky, Grigory (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
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      A family F of w-subsets of a finite set X is called a set system with the identifiable parent property if for any w-subset contained in the union of some t sets, called traitors, of F at least one of these sets can be ...
    • A family of asymptotically good binary fingerprinting codes 

      Cotrina Navau, Josep; Fernández Muñoz, Marcel (2010-10)
      Article
      Accés restringit per política de l'editorial
      A fingerprinting code is a set of codewords that are embedded in each copy of a digital object with the purpose of making each copy unique. If the fingerprinting code is c-secure with error, then the decoding of a pirate ...
    • A new class of codes for fingerprinting schemes 

      Fernández Muñoz, Marcel; Soriano Ibáñez, Miguel; Cotrina Navau, Josep (Springer, 2005)
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      In this paper we discuss the problem of collusion secure fingerprinting. In the first part of our contribution we prove the existence of equidistant codes that can be used as fingerprinting codes. Then we show that by ...
    • A new class of traceability schemes 

      Egorova, Elena; Fernández Muñoz, Marcel; Kabatiansky, Grigory (2019)
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      A new class of tracing traitors schemes with traceability property which combines ideas of nonbinary IPP-codes and IPP set systems is proposed. A detailed comparison of the proposed scheme with previously known traceability ...
    • A note about the traceability properties of linear codes 

      Fernández Muñoz, Marcel; Cotrina Navau, Josep; Soriano Ibáñez, Miguel; Domingo, Neus (Springer, 2007)
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      We characterize the traceability properties of linear codes. It is well known that any code of length n and minimum distance d is a c-TA code if c 2¿<¿n/(n¿-¿d). In this paper, we show that a less restrictive condition can ...
    • A novel support recovery algorithms and its applications to multiple-access channels 

      Fernández Muñoz, Marcel; Kabatiansky, Grigory; Miao, Ying (Institute of Electrical and Electronics Engineers (IEEE), 2022)
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      A novel algorithm of a sparse vector support recovery in presence of noise is proposed. In contrary to known algorithms based on matrices with RIP-property our algorithm exploits properties of so-called separating codes. ...
    • A study of the separating property in Reed-Solomon codes by bounding the minimum distance 

      Fernández Muñoz, Marcel; Jiménez Urroz, Jorge (2022-02)
      Article
      Accés obert
      According to their strength, the tracing properties of a code can be categorized as frameproof, separating, IPP and TA. It is known that, if the minimum distance of the code is larger than a certain threshold then the TA ...
    • Almost IPP-codes or provably secure digital fingerprinting codes 

      Fernández Muñoz, Marcel; Kabatiansky, Grigory; Moreira Sánchez, José (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      Codes with the Identifiable Parent Property (IPP codes) form a very useful tool in traitor tracing schemes since they guarantee (with probability 1) identification of at least one of the traitors. We consider a natural ...
    • Almost separating and almost secure frameproof codes 

      Fernández Muñoz, Marcel; Kabatiansky, Grigory; Moreira Sánchez, José (2011)
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      The theory of separating codes has been applied in several areas of science ranging from automata synthesis to the protection of distribution rights. In this paper, we introduce a relaxed version of separating and secure ...
    • Almost separating and almost secure frameproof codes over q-ary alphabets 

      Moreira Sánchez, José; Fernández Muñoz, Marcel; Kabatiansky, Grigory (2015-03-27)
      Article
      Accés obert
      In this paper we discuss some variations of the notion of separating code for alphabets of arbitrary size. We show how the original definition can be relaxed in two different ways, namely almost separating and almost secure ...
    • Constructions of almost secure frameproof codes based on small-bias probability spaces 

      Moreira Sánchez, José; Fernández Muñoz, Marcel; Kabatiansky, Grigory (Springer International Publishing, 2013)
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      Secure frameproof code is the name given to a separating code when studied in relation to fingerprinting schemes. Separating codes are combinatorial objects that have found to be useful in many areas such as technical ...
    • Constructions of almost secure frameproof codes with applications to fingerprinting schemes 

      Moreira, Jose; Fernández Muñoz, Marcel; Kabatiansky, Grigory (2018-04)
      Article
      Accés obert
      This paper presents explicit constructions of fingerprinting codes. The proposed constructions use a class of codes called almost secure frameproof codes. An almost secure frameproof code is a relaxed version of a secure ...
    • Códigos de fingerprinting binarios. Nuevos paradigmas de identificación 

      Fernández Muñoz, Marcel; Kabatiansky, Grigory; Egorova, Elena (2016)
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      Los códigos con la Identifiable Parent Property garantizan, con probabilidad 1, la identificación de como mínimo de uno de los traidores en sistemas de Traitor Tracing. Desafortunadamente, para el caso de códigos binarios ...
    • Esquemas de fingerprinting para la protección de derechos de distribución 

      Fernández Muñoz, Marcel; Soriano Ibáñez, Miguel; Domingo Ferrer, Josep; Sebé Feixas, Francesc (Asociación de Técnicos de Informática, 2002-12)
      Article
      Accés obert
    • Frameproof codes, separable codes and B2 codes: bounds and constructions 

      Fernández Muñoz, Marcel; Livieratos, John; Martín Mollevi, Sebastià (Springer, 2023-11-10)
      Article
      Accés obert
      In this paper, constructions of frameproof codes, separable codes, and B2 codes are obtained. For each family of codes, the Lovász Local Lemmais used to establish lower bounds for the codes. The obtained bounds match all ...
    • Improved existence bounds on IPP codes using the Clique Lovász Local Lemma 

      Aranda, Castor; Fernández Muñoz, Marcel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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      Nowadays, one of the biggest problems that challenges distributors of digital content is, precisely, protecting such content against redistribution. Those who trade with any of the multiple digital information formats ...
    • Multimedia copyright protection platform demonstrator 

      Soriano Ibáñez, Miguel; Fernández Muñoz, Marcel; Sayrol Clols, Elisa; Tomás Buliart, Joan; Casanellas, Joan; Pegueroles Vallés, Josep R.; Hernández Serrano, Juan (Springer, 2005)
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      The work presented in this paper consists in the development of a portable platform to protect the copyright and distribution rights of digital contents, and empirically demonstrate the capacity of several marking and ...
    • Multimedia fingerprinting with noise via signature codes for weighted noisy adder channels and compressed sensing 

      Egorova, Elena; Fernández Muñoz, Marcel; Moon Ho, Lee (2017)
      Text en actes de congrés
      Accés obert
      We propose a new coding scheme for multimedia fingerprinting resistant to noise. Our scheme is based on signature codes for weighted noisy adder channel. The scheme (codes) can trace the entire coalition of pirates and ...
    • New considerations about the correct design of turbo fingerprinting codes 

      Tomás Buliart, Joan; Fernández Muñoz, Marcel; Soriano Ibáñez, Miguel (Springer, 2008)
      Text en actes de congrés
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      Since the introduction of turbo codes in 1993, many new applications for this family of codes have been proposed. One of the latest, in the context of digital fingerprinting, is called turbo fingerprinting codes and was ...
    • On non-binary traceability set systems 

      Egorova, Elena; Fernández Muñoz, Marcel; Kabatiansky, Grigory (2020-03-19)
      Article
      Accés obert
      We introduce non-binary IPP set systems with traceability properties that have IPP codes and binary IPP set systems with traceability capabilities as particular cases. We prove an analogue of the Gilbert–Varshamov bound ...