Now showing items 1-7 of 7

    • 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)
      Conference report
      Restricted access - publisher's policy
      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)
      Conference report
      Restricted access - publisher's policy
      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
      Open Access
      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)
      Conference report
      Restricted access - publisher's policy
      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 ...
    • On codes for traceability schemes: constructions and bounds 

      Moreira Sánchez, José (Universitat Politècnica de Catalunya, 2013-11-13)
      Doctoral thesis
      Open Access
      A traceability or fingerprinting scheme is a cryptographic scheme that facilitates the identification of the source of leaked information. In a fingerprinting setting, a distributor delivers copies of a given content to a ...
    • Parallelization of the interpolation process in the Koetter-Vardy soft-decision list decoding algorithm 

      Moreira Sánchez, José; Fernández Muñoz, Marcel; Soriano Ibáñez, Miguel (2012)
      Conference lecture
      Open Access
      List decoding is a decoding strategy that provides a set of codewords at the output of the channel decoder. Since this technique corrects errors beyond the correcting bound of the code, upper layers in the application or ...
    • Properties and evaluation of fingerprinting codes 

      Moreira Sánchez, José (Universitat Politècnica de Catalunya, 2009-09)
      Master thesis
      Open Access
      The concept of data fingerprinting is of paramount importance in the framework of digital content distribution. This project deals with fingerprinting codes, which are used to prevent dishonest users from redistributing ...